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authorAvra Sengupta <asengupt@redhat.com>2015-01-06 07:40:32 +0000
committerKrishnan Parthasarathi <kparthas@redhat.com>2015-01-08 05:32:11 -0800
commit4056ed598f642d2d23a65b79495b0247d84db2f4 (patch)
tree71953b85a6d00edc22f71730499294371e27c7fc /xlators
parentd0b07fae1fece688333888cfc408bc7c031ae8bf (diff)
glusterd: Refactor glusterd-utils.c
Refactor glusterd-utils.c to create glusterd-snapshot-utils.c consisting of all snapshot utility functions. Change-Id: Id9823a2aec9b115f9c040c9940f288d4fe753d9b BUG: 1176770 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/9391 Reviewed-by: Kaushal M <kaushal@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
Diffstat (limited to 'xlators')
-rw-r--r--xlators/mgmt/glusterd/src/Makefile.am5
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-handler.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-handshake.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mgmt.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-op-sm.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-rpc-ops.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-sm.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c3704
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h200
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-syncop.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c3681
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.h220
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volgen.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-ops.c1
16 files changed, 3942 insertions, 3879 deletions
diff --git a/xlators/mgmt/glusterd/src/Makefile.am b/xlators/mgmt/glusterd/src/Makefile.am
index 950fc17e712..4d14858343e 100644
--- a/xlators/mgmt/glusterd/src/Makefile.am
+++ b/xlators/mgmt/glusterd/src/Makefile.am
@@ -10,7 +10,8 @@ glusterd_la_SOURCES = glusterd.c glusterd-handler.c glusterd-sm.c \
glusterd-volume-ops.c glusterd-brick-ops.c glusterd-mountbroker.c \
glusterd-syncop.c glusterd-hooks.c glusterd-volume-set.c \
glusterd-locks.c glusterd-snapshot.c glusterd-mgmt-handler.c \
- glusterd-mgmt.c glusterd-peer-utils.c glusterd-statedump.c
+ glusterd-mgmt.c glusterd-peer-utils.c glusterd-statedump.c \
+ glusterd-snapshot-utils.c
glusterd_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la \
$(top_builddir)/rpc/xdr/src/libgfxdr.la \
@@ -25,7 +26,7 @@ noinst_HEADERS = glusterd.h glusterd-utils.h glusterd-op-sm.h \
glusterd-pmap.h glusterd-volgen.h glusterd-mountbroker.h \
glusterd-syncop.h glusterd-hooks.h glusterd-locks.h \
glusterd-mgmt.h glusterd-messages.h glusterd-peer-utils.h \
- glusterd-statedump.h
+ glusterd-statedump.h glusterd-snapshot-utils.h
AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \
-I$(rpclibdir) -I$(CONTRIBDIR)/rbtree \
diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c
index 0f2c2751883..803a13c8393 100644
--- a/xlators/mgmt/glusterd/src/glusterd-handler.c
+++ b/xlators/mgmt/glusterd/src/glusterd-handler.c
@@ -33,6 +33,7 @@
#include "glusterd-utils.h"
#include "glusterd-store.h"
#include "glusterd-locks.h"
+#include "glusterd-snapshot-utils.h"
#include "glusterd1-xdr.h"
#include "cli1-xdr.h"
diff --git a/xlators/mgmt/glusterd/src/glusterd-handshake.c b/xlators/mgmt/glusterd/src/glusterd-handshake.c
index 72e479070b6..e6921c87b89 100644
--- a/xlators/mgmt/glusterd/src/glusterd-handshake.c
+++ b/xlators/mgmt/glusterd/src/glusterd-handshake.c
@@ -22,6 +22,7 @@
#include "glusterd-utils.h"
#include "glusterd-op-sm.h"
#include "glusterd-store.h"
+#include "glusterd-snapshot-utils.h"
#include "glusterfs3.h"
#include "protocol-common.h"
diff --git a/xlators/mgmt/glusterd/src/glusterd-mgmt.c b/xlators/mgmt/glusterd/src/glusterd-mgmt.c
index 0853bd9b4bb..403e13e3678 100644
--- a/xlators/mgmt/glusterd/src/glusterd-mgmt.c
+++ b/xlators/mgmt/glusterd/src/glusterd-mgmt.c
@@ -21,6 +21,7 @@
#include "glusterd-op-sm.h"
#include "glusterd-volgen.h"
#include "glusterd-store.h"
+#include "glusterd-snapshot-utils.h"
extern struct rpc_clnt_program gd_mgmt_v3_prog;
diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index a0cf87598fa..3b5186e4f18 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -43,6 +43,7 @@
#include "cli1-xdr.h"
#include "common-utils.h"
#include "run.h"
+#include "glusterd-snapshot-utils.h"
#include <sys/types.h>
#include <signal.h>
diff --git a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
index ec2d850094a..8f29d26ed24 100644
--- a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
@@ -27,6 +27,7 @@
#include "glusterd-utils.h"
#include "common-utils.h"
#include "glusterd-messages.h"
+#include "glusterd-snapshot-utils.h"
#include <sys/uio.h>
diff --git a/xlators/mgmt/glusterd/src/glusterd-sm.c b/xlators/mgmt/glusterd/src/glusterd-sm.c
index 6b30361e3d5..d3640c0aaa9 100644
--- a/xlators/mgmt/glusterd/src/glusterd-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-sm.c
@@ -35,6 +35,7 @@
#include "glusterd-op-sm.h"
#include "glusterd-utils.h"
#include "glusterd-store.h"
+#include "glusterd-snapshot-utils.h"
static struct list_head gd_friend_sm_queue;
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
new file mode 100644
index 00000000000..8603e9e950c
--- /dev/null
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
@@ -0,0 +1,3704 @@
+/*
+ Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+#include <inttypes.h>
+
+#if defined(GF_LINUX_HOST_OS)
+#include <mntent.h>
+#else
+#include "mntent_compat.h"
+#endif
+#include <dlfcn.h>
+
+#include "dict.h"
+#include "syscall.h"
+#include "glusterd-op-sm.h"
+#include "glusterd-utils.h"
+#include "glusterd-store.h"
+#include "glusterd-volgen.h"
+#include "glusterd-snapshot-utils.h"
+
+/*
+ * glusterd_snap_geo_rep_restore:
+ * This function restores the atime and mtime of marker.tstamp
+ * if present from snapped marker.tstamp file.
+ */
+int
+glusterd_snap_geo_rep_restore (glusterd_volinfo_t *snap_volinfo,
+ glusterd_volinfo_t *new_volinfo)
+{
+ char vol_tstamp_file[PATH_MAX] = {0,};
+ char snap_tstamp_file[PATH_MAX] = {0,};
+ glusterd_conf_t *priv = NULL;
+ xlator_t *this = NULL;
+ int geo_rep_indexing_on = 0;
+ int ret = 0;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (snap_volinfo);
+ GF_ASSERT (new_volinfo);
+
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ /* Check if geo-rep indexing is enabled, if yes, we need restore
+ * back the mtime of 'marker.tstamp' file.
+ */
+ geo_rep_indexing_on = glusterd_volinfo_get_boolean (new_volinfo,
+ VKEY_MARKER_XTIME);
+ if (geo_rep_indexing_on == -1) {
+ gf_log (this->name, GF_LOG_DEBUG, "Failed"
+ " to check whether geo-rep-indexing enabled or not");
+ ret = 0;
+ goto out;
+ }
+
+ if (geo_rep_indexing_on == 1) {
+ GLUSTERD_GET_VOLUME_DIR (vol_tstamp_file, new_volinfo, priv);
+ strncat (vol_tstamp_file, "/marker.tstamp",
+ PATH_MAX - strlen(vol_tstamp_file) - 1);
+ GLUSTERD_GET_VOLUME_DIR (snap_tstamp_file, snap_volinfo, priv);
+ strncat (snap_tstamp_file, "/marker.tstamp",
+ PATH_MAX - strlen(snap_tstamp_file) - 1);
+ ret = gf_set_timestamp (snap_tstamp_file, vol_tstamp_file);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set atime and mtime of %s as of %s",
+ vol_tstamp_file, snap_tstamp_file);
+ goto out;
+ }
+ }
+
+out:
+ return ret;
+}
+
+/* This function will copy snap volinfo to the new
+ * passed volinfo and regenerate backend store files
+ * for the restored snap.
+ *
+ * @param new_volinfo new volinfo
+ * @param snap_volinfo volinfo of snap volume
+ *
+ * @return 0 on success and -1 on failure
+ *
+ * TODO: Duplicate all members of volinfo, e.g. geo-rep sync slaves
+ */
+int32_t
+glusterd_snap_volinfo_restore (dict_t *dict, dict_t *rsp_dict,
+ glusterd_volinfo_t *new_volinfo,
+ glusterd_volinfo_t *snap_volinfo,
+ int32_t volcount)
+{
+ char *value = NULL;
+ char key[PATH_MAX] = "";
+ int32_t brick_count = -1;
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_brickinfo_t *brickinfo = NULL;
+ glusterd_brickinfo_t *new_brickinfo = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (dict);
+ GF_ASSERT (rsp_dict);
+
+ GF_VALIDATE_OR_GOTO (this->name, new_volinfo, out);
+ GF_VALIDATE_OR_GOTO (this->name, snap_volinfo, out);
+
+ brick_count = 0;
+ list_for_each_entry (brickinfo, &snap_volinfo->bricks, brick_list) {
+ brick_count++;
+ ret = glusterd_brickinfo_new (&new_brickinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to create "
+ "new brickinfo");
+ goto out;
+ }
+
+ /* Duplicate brickinfo */
+ ret = glusterd_brickinfo_dup (brickinfo, new_brickinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to dup "
+ "brickinfo");
+ goto out;
+ }
+
+ /* Fetch values if present in dict These values won't
+ * be present in case of a missed restore. In that case
+ * it's fine to use the local node's value
+ */
+ snprintf (key, sizeof (key), "snap%d.brick%d.path",
+ volcount, brick_count);
+ ret = dict_get_str (dict, key, &value);
+ if (!ret)
+ strncpy (new_brickinfo->path, value,
+ sizeof(new_brickinfo->path));
+
+ snprintf (key, sizeof (key), "snap%d.brick%d.snap_status",
+ volcount, brick_count);
+ ret = dict_get_int32 (dict, key, &new_brickinfo->snap_status);
+
+ snprintf (key, sizeof (key), "snap%d.brick%d.device_path",
+ volcount, brick_count);
+ ret = dict_get_str (dict, key, &value);
+ if (!ret)
+ strncpy (new_brickinfo->device_path, value,
+ sizeof(new_brickinfo->device_path));
+
+ snprintf (key, sizeof (key), "snap%d.brick%d.fs_type",
+ volcount, brick_count);
+ ret = dict_get_str (dict, key, &value);
+ if (!ret)
+ strncpy (new_brickinfo->fstype, value,
+ sizeof(new_brickinfo->fstype));
+
+ snprintf (key, sizeof (key), "snap%d.brick%d.mnt_opts",
+ volcount, brick_count);
+ ret = dict_get_str (dict, key, &value);
+ if (!ret)
+ strncpy (new_brickinfo->mnt_opts, value,
+ sizeof(new_brickinfo->mnt_opts));
+
+ /* If the brick is not of this peer, or snapshot is missed *
+ * for the brick do not replace the xattr for it */
+ if ((!uuid_compare (brickinfo->uuid, MY_UUID)) &&
+ (brickinfo->snap_status != -1)) {
+ /* We need to replace the volume id of all the bricks
+ * to the volume id of the origin volume. new_volinfo
+ * has the origin volume's volume id*/
+ ret = sys_lsetxattr (new_brickinfo->path,
+ GF_XATTR_VOL_ID_KEY,
+ new_volinfo->volume_id,
+ sizeof (new_volinfo->volume_id),
+ XATTR_REPLACE);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to "
+ "set extended attribute %s on %s. "
+ "Reason: %s, snap: %s",
+ GF_XATTR_VOL_ID_KEY,
+ new_brickinfo->path, strerror (errno),
+ new_volinfo->volname);
+ goto out;
+ }
+ }
+
+ /* If a snapshot is pending for this brick then
+ * restore should also be pending
+ */
+ if (brickinfo->snap_status == -1) {
+ /* Adding missed delete to the dict */
+ ret = glusterd_add_missed_snaps_to_dict
+ (rsp_dict,
+ snap_volinfo,
+ brickinfo,
+ brick_count,
+ GF_SNAP_OPTION_TYPE_RESTORE);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add missed snapshot info "
+ "for %s:%s in the rsp_dict",
+ brickinfo->hostname,
+ brickinfo->path);
+ goto out;
+ }
+ }
+
+ list_add_tail (&new_brickinfo->brick_list,
+ &new_volinfo->bricks);
+ /* ownership of new_brickinfo is passed to new_volinfo */
+ new_brickinfo = NULL;
+ }
+
+ /* Regenerate all volfiles */
+ ret = glusterd_create_volfiles_and_notify_services (new_volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to regenerate volfiles");
+ goto out;
+ }
+
+ /* Restore geo-rep marker.tstamp's timestamp */
+ ret = glusterd_snap_geo_rep_restore (snap_volinfo, new_volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Geo-rep: marker.tstamp's timestamp restoration failed");
+ goto out;
+ }
+
+out:
+ if (ret && (NULL != new_brickinfo)) {
+ (void) glusterd_brickinfo_delete (new_brickinfo);
+ }
+
+ return ret;
+}
+
+int
+glusterd_snap_volinfo_find_by_volume_id (uuid_t volume_id,
+ glusterd_volinfo_t **volinfo)
+{
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_volinfo_t *voliter = NULL;
+ glusterd_snap_t *snap = NULL;
+ glusterd_conf_t *priv = NULL;
+
+ this = THIS;
+ priv = this->private;
+ GF_ASSERT (priv);
+ GF_ASSERT (volinfo);
+
+ if (uuid_is_null(volume_id)) {
+ gf_log (this->name, GF_LOG_WARNING, "Volume UUID is NULL");
+ goto out;
+ }
+
+ list_for_each_entry (snap, &priv->snapshots, snap_list) {
+ list_for_each_entry (voliter, &snap->volumes, vol_list) {
+ if (uuid_compare (volume_id, voliter->volume_id))
+ continue;
+ *volinfo = voliter;
+ ret = 0;
+ goto out;
+ }
+ }
+
+ gf_log (this->name, GF_LOG_WARNING, "Snap volume not found");
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+int32_t
+glusterd_snap_volinfo_find (char *snap_volname, glusterd_snap_t *snap,
+ glusterd_volinfo_t **volinfo)
+{
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_volinfo_t *snap_vol = NULL;
+ glusterd_conf_t *priv = NULL;
+
+ this = THIS;
+ priv = this->private;
+ GF_ASSERT (priv);
+ GF_ASSERT (snap);
+ GF_ASSERT (snap_volname);
+
+ list_for_each_entry (snap_vol, &snap->volumes, vol_list) {
+ if (!strcmp (snap_vol->volname, snap_volname)) {
+ ret = 0;
+ *volinfo = snap_vol;
+ goto out;
+ }
+ }
+
+ gf_log (this->name, GF_LOG_WARNING, "Snap volume %s not found",
+ snap_volname);
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+int32_t
+glusterd_snap_volinfo_find_from_parent_volname (char *origin_volname,
+ glusterd_snap_t *snap,
+ glusterd_volinfo_t **volinfo)
+{
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_volinfo_t *snap_vol = NULL;
+ glusterd_conf_t *priv = NULL;
+
+ this = THIS;
+ priv = this->private;
+ GF_ASSERT (priv);
+ GF_ASSERT (snap);
+ GF_ASSERT (origin_volname);
+
+ list_for_each_entry (snap_vol, &snap->volumes, vol_list) {
+ if (!strcmp (snap_vol->parent_volname, origin_volname)) {
+ ret = 0;
+ *volinfo = snap_vol;
+ goto out;
+ }
+ }
+
+ gf_log (this->name, GF_LOG_DEBUG, "Snap volume not found(snap: %s, "
+ "origin-volume: %s", snap->snapname, origin_volname);
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* Exports a bricks snapshot details only if required
+ *
+ * The details will be exported only if the cluster op-version is greather than
+ * 4, ie. snapshot is supported in the cluster
+ */
+int
+gd_add_brick_snap_details_to_dict (dict_t *dict, char *prefix,
+ glusterd_brickinfo_t *brickinfo)
+{
+ int ret = -1;
+ xlator_t *this = NULL;
+ glusterd_conf_t *conf = NULL;
+ char key[256] = {0,};
+
+ this = THIS;
+ GF_ASSERT (this != NULL);
+ conf = this->private;
+ GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
+
+ GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (brickinfo != NULL), out);
+
+ if (conf->op_version < GD_OP_VERSION_3_6_0) {
+ ret = 0;
+ goto out;
+ }
+
+ snprintf (key, sizeof (key), "%s.snap_status", prefix);
+ ret = dict_set_int32 (dict, key, brickinfo->snap_status);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to set snap_status for %s:%s",
+ brickinfo->hostname, brickinfo->path);
+ goto out;
+ }
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.device_path", prefix);
+ ret = dict_set_str (dict, key, brickinfo->device_path);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to set snap_device for %s:%s",
+ brickinfo->hostname, brickinfo->path);
+ goto out;
+ }
+
+ snprintf (key, sizeof (key), "%s.fs_type", prefix);
+ ret = dict_set_str (dict, key, brickinfo->fstype);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to set fstype for %s:%s",
+ brickinfo->hostname, brickinfo->path);
+ goto out;
+ }
+
+ snprintf (key, sizeof (key), "%s.mnt_opts", prefix);
+ ret = dict_set_str (dict, key, brickinfo->mnt_opts);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to set mnt_opts for %s:%s",
+ brickinfo->hostname, brickinfo->path);
+ goto out;
+ }
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.mount_dir", prefix);
+ ret = dict_set_str (dict, key, brickinfo->mount_dir);
+ if (ret)
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to set mount_dir for %s:%s",
+ brickinfo->hostname, brickinfo->path);
+
+out:
+ return ret;
+}
+
+/* Exports a volumes snapshot details only if required.
+ *
+ * The snapshot details will only be exported if the cluster op-version is
+ * greater than 4, ie. snapshot is supported in the cluster
+ */
+int
+gd_add_vol_snap_details_to_dict (dict_t *dict, char *prefix,
+ glusterd_volinfo_t *volinfo)
+{
+ int ret = -1;
+ xlator_t *this = NULL;
+ glusterd_conf_t *conf = NULL;
+ char key[256] = {0,};
+
+ this = THIS;
+ GF_ASSERT (this != NULL);
+ conf = this->private;
+ GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
+
+ GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (volinfo != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
+
+ if (conf->op_version < GD_OP_VERSION_3_6_0) {
+ ret = 0;
+ goto out;
+ }
+
+ snprintf (key, sizeof (key), "%s.restored_from_snap", prefix);
+ ret = dict_set_dynstr_with_alloc
+ (dict, key,
+ uuid_utoa (volinfo->restored_from_snap));
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to set %s for volume"
+ "%s", key, volinfo->volname);
+ goto out;
+ }
+
+ if (strlen (volinfo->parent_volname) > 0) {
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.parent_volname", prefix);
+ ret = dict_set_dynstr_with_alloc (dict, key,
+ volinfo->parent_volname);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to set %s "
+ "for volume %s", key, volinfo->volname);
+ goto out;
+ }
+ }
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.is_snap_volume", prefix);
+ ret = dict_set_uint32 (dict, key, volinfo->is_snap_volume);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to set %s for volume"
+ "%s", key, volinfo->volname);
+ goto out;
+ }
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.snap-max-hard-limit", prefix);
+ ret = dict_set_uint64 (dict, key, volinfo->snap_max_hard_limit);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to set %s for volume"
+ "%s", key, volinfo->volname);
+ }
+
+out:
+ return ret;
+}
+
+int32_t
+glusterd_add_missed_snaps_to_export_dict (dict_t *peer_data)
+{
+ char name_buf[PATH_MAX] = "";
+ char value[PATH_MAX] = "";
+ int32_t missed_snap_count = 0;
+ int32_t ret = -1;
+ glusterd_conf_t *priv = NULL;
+ glusterd_missed_snap_info *missed_snapinfo = NULL;
+ glusterd_snap_op_t *snap_opinfo = NULL;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (peer_data);
+
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ /* Add the missed_entries in the dict */
+ list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
+ missed_snaps) {
+ list_for_each_entry (snap_opinfo,
+ &missed_snapinfo->snap_ops,
+ snap_ops_list) {
+ snprintf (name_buf, sizeof(name_buf),
+ "missed_snaps_%d", missed_snap_count);
+ snprintf (value, sizeof(value), "%s:%s=%s:%d:%s:%d:%d",
+ missed_snapinfo->node_uuid,
+ missed_snapinfo->snap_uuid,
+ snap_opinfo->snap_vol_id,
+ snap_opinfo->brick_num,
+ snap_opinfo->brick_path,
+ snap_opinfo->op,
+ snap_opinfo->status);
+
+ ret = dict_set_dynstr_with_alloc (peer_data, name_buf,
+ value);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set %s",
+ name_buf);
+ goto out;
+ }
+ missed_snap_count++;
+ }
+ }
+
+ ret = dict_set_int32 (peer_data, "missed_snap_count",
+ missed_snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set missed_snap_count");
+ goto out;
+ }
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+int32_t
+glusterd_add_snap_to_dict (glusterd_snap_t *snap, dict_t *peer_data,
+ int32_t snap_count)
+{
+ char buf[NAME_MAX] = "";
+ char prefix[NAME_MAX] = "";
+ int32_t ret = -1;
+ int32_t volcount = 0;
+ glusterd_volinfo_t *volinfo = NULL;
+ glusterd_brickinfo_t *brickinfo = NULL;
+ gf_boolean_t host_bricks = _gf_false;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (snap);
+ GF_ASSERT (peer_data);
+
+ snprintf (prefix, sizeof(prefix), "snap%d", snap_count);
+
+ list_for_each_entry (volinfo, &snap->volumes, vol_list) {
+ volcount++;
+ ret = glusterd_add_volume_to_dict (volinfo, peer_data,
+ volcount, prefix);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add snap:%s volume:%s "
+ "to peer_data dict for handshake",
+ snap->snapname, volinfo->volname);
+ goto out;
+ }
+
+ if (glusterd_is_volume_quota_enabled (volinfo)) {
+
+ ret = glusterd_vol_add_quota_conf_to_dict (volinfo,
+ peer_data,
+ volcount,
+ prefix);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add quota conf for "
+ "snap:%s volume:%s to peer_data "
+ "dict for handshake", snap->snapname,
+ volinfo->volname);
+ goto out;
+ }
+ }
+
+ list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
+ if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
+ host_bricks = _gf_true;
+ break;
+ }
+ }
+ }
+
+ snprintf (buf, sizeof(buf), "%s.host_bricks", prefix);
+ ret = dict_set_int8 (peer_data, buf, (int8_t) host_bricks);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set host_bricks for snap %s",
+ snap->snapname);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.volcount", prefix);
+ ret = dict_set_int32 (peer_data, buf, volcount);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set volcount for snap %s",
+ snap->snapname);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.snapname", prefix);
+ ret = dict_set_dynstr_with_alloc (peer_data, buf, snap->snapname);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set snapname for snap %s",
+ snap->snapname);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.snap_id", prefix);
+ ret = dict_set_dynstr_with_alloc (peer_data, buf,
+ uuid_utoa (snap->snap_id));
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set snap_id for snap %s",
+ snap->snapname);
+ goto out;
+ }
+
+ if (snap->description) {
+ snprintf (buf, sizeof(buf), "%s.snapid", prefix);
+ ret = dict_set_dynstr_with_alloc (peer_data, buf,
+ snap->description);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set description for snap %s",
+ snap->snapname);
+ goto out;
+ }
+ }
+
+ snprintf (buf, sizeof(buf), "%s.time_stamp", prefix);
+ ret = dict_set_int64 (peer_data, buf, (int64_t)snap->time_stamp);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set time_stamp for snap %s",
+ snap->snapname);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.snap_restored", prefix);
+ ret = dict_set_int8 (peer_data, buf, snap->snap_restored);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set snap_restored for snap %s",
+ snap->snapname);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.snap_status", prefix);
+ ret = dict_set_int32 (peer_data, buf, snap->snap_status);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set snap_status for snap %s",
+ snap->snapname);
+ goto out;
+ }
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+int32_t
+glusterd_add_snapshots_to_export_dict (dict_t *peer_data)
+{
+ int32_t snap_count = 0;
+ int32_t ret = -1;
+ glusterd_conf_t *priv = NULL;
+ glusterd_snap_t *snap = NULL;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
+ GF_ASSERT (peer_data);
+
+ list_for_each_entry (snap, &priv->snapshots, snap_list) {
+ snap_count++;
+ ret = glusterd_add_snap_to_dict (snap, peer_data, snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add snap(%s) to the "
+ " peer_data dict for handshake",
+ snap->snapname);
+ goto out;
+ }
+ }
+
+ ret = dict_set_int32 (peer_data, "snap_count", snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to set snap_count");
+ goto out;
+ }
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* Imports the snapshot details of a brick if required and available
+ *
+ * Snapshot details will be imported only if the cluster op-verison is >= 4
+ */
+int
+gd_import_new_brick_snap_details (dict_t *dict, char *prefix,
+ glusterd_brickinfo_t *brickinfo)
+{
+ int ret = -1;
+ xlator_t *this = NULL;
+ glusterd_conf_t *conf = NULL;
+ char key[512] = {0,};
+ char *snap_device = NULL;
+ char *fs_type = NULL;
+ char *mnt_opts = NULL;
+ char *mount_dir = NULL;
+
+ this = THIS;
+ GF_ASSERT (this != NULL);
+ conf = this->private;
+ GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
+
+ GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (brickinfo != NULL), out);
+
+ if (conf->op_version < GD_OP_VERSION_3_6_0) {
+ ret = 0;
+ goto out;
+ }
+
+ snprintf (key, sizeof (key), "%s.snap_status", prefix);
+ ret = dict_get_int32 (dict, key, &brickinfo->snap_status);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
+ goto out;
+ }
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.device_path", prefix);
+ ret = dict_get_str (dict, key, &snap_device);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
+ goto out;
+ }
+ strcpy (brickinfo->device_path, snap_device);
+
+ snprintf (key, sizeof (key), "%s.fs_type", prefix);
+ ret = dict_get_str (dict, key, &fs_type);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
+ goto out;
+ }
+ strcpy (brickinfo->fstype, fs_type);
+
+ snprintf (key, sizeof (key), "%s.mnt_opts", prefix);
+ ret = dict_get_str (dict, key, &mnt_opts);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
+ goto out;
+ }
+ strcpy (brickinfo->mnt_opts, mnt_opts);
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.mount_dir", prefix);
+ ret = dict_get_str (dict, key, &mount_dir);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
+ goto out;
+ }
+ strcpy (brickinfo->mount_dir, mount_dir);
+
+out:
+ return ret;
+}
+
+/*
+ * Imports the snapshot details of a volume if required and available
+ *
+ * Snapshot details will be imported only if cluster.op_version is greater than
+ * or equal to GD_OP_VERSION_3_6_0, the op-version from which volume snapshot is
+ * supported.
+ */
+int
+gd_import_volume_snap_details (dict_t *dict, glusterd_volinfo_t *volinfo,
+ char *prefix, char *volname)
+{
+ int ret = -1;
+ xlator_t *this = NULL;
+ glusterd_conf_t *conf = NULL;
+ char key[256] = {0,};
+ char *restored_snap = NULL;
+
+ this = THIS;
+ GF_ASSERT (this != NULL);
+ conf = this->private;
+ GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
+
+ GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (volinfo != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
+ GF_VALIDATE_OR_GOTO (this->name, (volname != NULL), out);
+
+ if (conf->op_version < GD_OP_VERSION_3_6_0) {
+ ret = 0;
+ goto out;
+ }
+
+ snprintf (key, sizeof (key), "%s.is_snap_volume", prefix);
+ ret = dict_get_uint32 (dict, key, &volinfo->is_snap_volume);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload "
+ "for %s", key, volname);
+ goto out;
+ }
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.restored_from_snap", prefix);
+ ret = dict_get_str (dict, key, &restored_snap);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload "
+ "for %s", key, volname);
+ goto out;
+ }
+
+ uuid_parse (restored_snap, volinfo->restored_from_snap);
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.snap-max-hard-limit", prefix);
+ ret = dict_get_uint64 (dict, key,
+ &volinfo->snap_max_hard_limit);
+ if (ret)
+ gf_log (this->name, GF_LOG_ERROR, "%s missing in payload "
+ "for %s", key, volname);
+out:
+ return ret;
+}
+
+int32_t
+glusterd_perform_missed_op (glusterd_snap_t *snap, int32_t op)
+{
+ dict_t *dict = NULL;
+ int32_t ret = -1;
+ glusterd_conf_t *priv = NULL;
+ glusterd_volinfo_t *snap_volinfo = NULL;
+ glusterd_volinfo_t *volinfo = NULL;
+ glusterd_volinfo_t *tmp = NULL;
+ xlator_t *this = NULL;
+ uuid_t null_uuid = {0};
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ priv = this->private;
+ GF_ASSERT (priv);
+ GF_ASSERT (snap);
+
+ dict = dict_new();
+ if (!dict) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to create dict");
+ ret = -1;
+ goto out;
+ }
+
+ switch (op) {
+ case GF_SNAP_OPTION_TYPE_DELETE:
+ ret = glusterd_snap_remove (dict, snap, _gf_true, _gf_false);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to remove snap");
+ goto out;
+ }
+
+ break;
+ case GF_SNAP_OPTION_TYPE_RESTORE:
+ list_for_each_entry_safe (snap_volinfo, tmp,
+ &snap->volumes, vol_list) {
+ ret = glusterd_volinfo_find
+ (snap_volinfo->parent_volname,
+ &volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Could not get volinfo of %s",
+ snap_volinfo->parent_volname);
+ goto out;
+ }
+
+ volinfo->version--;
+ uuid_copy (volinfo->restored_from_snap, null_uuid);
+
+ /* gd_restore_snap_volume() uses the dict and volcount
+ * to fetch snap brick info from other nodes, which were
+ * collected during prevalidation. As this is an ad-hoc
+ * op and only local node's data matter, hence sending
+ * volcount as 0 and re-using the same dict because we
+ * need not record any missed creates in the rsp_dict.
+ */
+ ret = gd_restore_snap_volume (dict, dict, volinfo,
+ snap_volinfo, 0);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to restore snap for %s",
+ snap->snapname);
+ volinfo->version++;
+ goto out;
+ }
+
+ ret = glusterd_snapshot_restore_cleanup (dict, volinfo,
+ snap);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to perform snapshot restore "
+ "cleanup for %s volume",
+ snap_volinfo->parent_volname);
+ goto out;
+ }
+ }
+
+ break;
+ default:
+ /* The entry must be a create, delete, or
+ * restore entry
+ */
+ gf_log (this->name, GF_LOG_ERROR, "Invalid missed snap entry");
+ ret = -1;
+ goto out;
+ }
+
+out:
+ dict_unref (dict);
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* Perform missed deletes and restores on this node */
+int32_t
+glusterd_perform_missed_snap_ops ()
+{
+ int32_t ret = -1;
+ int32_t op_status = -1;
+ glusterd_conf_t *priv = NULL;
+ glusterd_missed_snap_info *missed_snapinfo = NULL;
+ glusterd_snap_op_t *snap_opinfo = NULL;
+ glusterd_snap_t *snap = NULL;
+ uuid_t snap_uuid = {0,};
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
+ missed_snaps) {
+ /* If the pending snap_op is not for this node then continue */
+ if (strcmp (missed_snapinfo->node_uuid, uuid_utoa (MY_UUID)))
+ continue;
+
+ /* Find the snap id */
+ uuid_parse (missed_snapinfo->snap_uuid, snap_uuid);
+ snap = NULL;
+ snap = glusterd_find_snap_by_id (snap_uuid);
+ if (!snap) {
+ /* If the snap is not found, then a delete or a
+ * restore can't be pending on that snap_uuid.
+ */
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Not a pending delete or restore op");
+ continue;
+ }
+
+ op_status = GD_MISSED_SNAP_PENDING;
+ list_for_each_entry (snap_opinfo, &missed_snapinfo->snap_ops,
+ snap_ops_list) {
+ /* If the snap_op is create or its status is
+ * GD_MISSED_SNAP_DONE then continue
+ */
+ if ((snap_opinfo->status == GD_MISSED_SNAP_DONE) ||
+ (snap_opinfo->op == GF_SNAP_OPTION_TYPE_CREATE))
+ continue;
+
+ /* Perform the actual op for the first time for
+ * this snap, and mark the snap_status as
+ * GD_MISSED_SNAP_DONE. For other entries for the same
+ * snap, just mark the entry as done.
+ */
+ if (op_status == GD_MISSED_SNAP_PENDING) {
+ ret = glusterd_perform_missed_op
+ (snap,
+ snap_opinfo->op);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to perform missed snap op");
+ goto out;
+ }
+ op_status = GD_MISSED_SNAP_DONE;
+ }
+
+ snap_opinfo->status = GD_MISSED_SNAP_DONE;
+ }
+ }
+
+ ret = 0;
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* Import friend volumes missed_snap_list and update *
+ * missed_snap_list if need be */
+int32_t
+glusterd_import_friend_missed_snap_list (dict_t *peer_data)
+{
+ int32_t missed_snap_count = -1;
+ int32_t ret = -1;
+ glusterd_conf_t *priv = NULL;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (peer_data);
+
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ /* Add the friends missed_snaps entries to the in-memory list */
+ ret = dict_get_int32 (peer_data, "missed_snap_count",
+ &missed_snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_INFO,
+ "No missed snaps");
+ ret = 0;
+ goto out;
+ }
+
+ ret = glusterd_add_missed_snaps_to_list (peer_data,
+ missed_snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add missed snaps to list");
+ goto out;
+ }
+
+ ret = glusterd_perform_missed_snap_ops ();
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to perform snap operations");
+ /* Not going to out at this point coz some *
+ * missed ops might have been performed. We *
+ * need to persist the current list *
+ */
+ }
+
+ ret = glusterd_store_update_missed_snaps ();
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to update missed_snaps_list");
+ goto out;
+ }
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* Check for the peer_snap_name in the list of existing snapshots.
+ * If a snap exists with the same name and a different snap_id, then
+ * there is a conflict. Set conflict as _gf_true, and snap to the
+ * conflicting snap object. If a snap exists with the same name, and the
+ * same snap_id, then there is no conflict. Set conflict as _gf_false
+ * and snap to the existing snap object. If no snap exists with the
+ * peer_snap_name, then there is no conflict. Set conflict as _gf_false
+ * and snap to NULL.
+ */
+void
+glusterd_is_peer_snap_conflicting (char *peer_snap_name, char *peer_snap_id,
+ gf_boolean_t *conflict,
+ glusterd_snap_t **snap, char *hostname)
+{
+ uuid_t peer_snap_uuid = {0,};
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (peer_snap_name);
+ GF_ASSERT (peer_snap_id);
+ GF_ASSERT (conflict);
+ GF_ASSERT (snap);
+ GF_ASSERT (hostname);
+
+ *snap = glusterd_find_snap_by_name (peer_snap_name);
+ if (*snap) {
+ uuid_parse (peer_snap_id, peer_snap_uuid);
+ if (!uuid_compare (peer_snap_uuid, (*snap)->snap_id)) {
+ /* Current node contains the same snap having
+ * the same snapname and snap_id
+ */
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Snapshot %s from peer %s present in "
+ "localhost", peer_snap_name, hostname);
+ *conflict = _gf_false;
+ } else {
+ /* Current node contains the same snap having
+ * the same snapname but different snap_id
+ */
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Snapshot %s from peer %s conflicts with "
+ "snapshot in localhost", peer_snap_name,
+ hostname);
+ *conflict = _gf_true;
+ }
+ } else {
+ /* Peer contains snapshots missing on the current node */
+ gf_log (this->name, GF_LOG_INFO,
+ "Snapshot %s from peer %s missing on localhost",
+ peer_snap_name, hostname);
+ *conflict = _gf_false;
+ }
+}
+
+/* Check if the local node is hosting any bricks for the given snapshot */
+gf_boolean_t
+glusterd_are_snap_bricks_local (glusterd_snap_t *snap)
+{
+ gf_boolean_t is_local = _gf_false;
+ glusterd_volinfo_t *volinfo = NULL;
+ glusterd_brickinfo_t *brickinfo = NULL;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (snap);
+
+ list_for_each_entry (volinfo, &snap->volumes, vol_list) {
+ list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
+ if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
+ is_local = _gf_true;
+ goto out;
+ }
+ }
+ }
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", is_local);
+ return is_local;
+}
+
+/* Check if the peer has missed any snap delete
+ * or restore for the given snap_id
+ */
+gf_boolean_t
+glusterd_peer_has_missed_snap_delete (glusterd_peerinfo_t *peerinfo,
+ char *peer_snap_id)
+{
+ char *peer_uuid = NULL;
+ gf_boolean_t missed_delete = _gf_false;
+ glusterd_conf_t *priv = NULL;
+ glusterd_missed_snap_info *missed_snapinfo = NULL;
+ glusterd_snap_op_t *snap_opinfo = NULL;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
+ GF_ASSERT (peerinfo);
+ GF_ASSERT (peer_snap_id);
+
+ peer_uuid = uuid_utoa (peerinfo->uuid);
+
+ list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
+ missed_snaps) {
+ /* Look for missed snap for the same peer, and
+ * the same snap_id
+ */
+ if ((!strcmp (peer_uuid, missed_snapinfo->node_uuid)) &&
+ (!strcmp (peer_snap_id, missed_snapinfo->snap_uuid))) {
+ /* Check if the missed snap's op is delete and the
+ * status is pending
+ */
+ list_for_each_entry (snap_opinfo,
+ &missed_snapinfo->snap_ops,
+ snap_ops_list) {
+ if (((snap_opinfo->op ==
+ GF_SNAP_OPTION_TYPE_DELETE) ||
+ (snap_opinfo->op ==
+ GF_SNAP_OPTION_TYPE_RESTORE)) &&
+ (snap_opinfo->status ==
+ GD_MISSED_SNAP_PENDING)) {
+ missed_delete = _gf_true;
+ goto out;
+ }
+ }
+ }
+ }
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", missed_delete);
+ return missed_delete;
+}
+
+/* Genrate and store snap volfiles for imported snap object */
+int32_t
+glusterd_gen_snap_volfiles (glusterd_volinfo_t *snap_vol, char *peer_snap_name)
+{
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_volinfo_t *parent_volinfo = NULL;
+ glusterd_brickinfo_t *brickinfo = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (snap_vol);
+ GF_ASSERT (peer_snap_name);
+
+ ret = glusterd_store_volinfo (snap_vol, GLUSTERD_VOLINFO_VER_AC_NONE);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to store snapshot "
+ "volinfo (%s) for snap %s", snap_vol->volname,
+ peer_snap_name);
+ goto out;
+ }
+
+ ret = generate_brick_volfiles (snap_vol);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "generating the brick volfiles for the "
+ "snap %s failed", peer_snap_name);
+ goto out;
+ }
+
+ ret = generate_client_volfiles (snap_vol, GF_CLIENT_TRUSTED);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "generating the trusted client volfiles for "
+ "the snap %s failed", peer_snap_name);
+ goto out;
+ }
+
+ ret = generate_client_volfiles (snap_vol, GF_CLIENT_OTHER);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "generating the client volfiles for the "
+ "snap %s failed", peer_snap_name);
+ goto out;
+ }
+
+ ret = glusterd_volinfo_find (snap_vol->parent_volname,
+ &parent_volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Parent volinfo "
+ "not found for %s volume of snap %s",
+ snap_vol->volname, peer_snap_name);
+ goto out;
+ }
+
+ glusterd_list_add_snapvol (parent_volinfo, snap_vol);
+
+ snap_vol->status = GLUSTERD_STATUS_STARTED;
+
+ ret = glusterd_store_volinfo (snap_vol, GLUSTERD_VOLINFO_VER_AC_NONE);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to store snap volinfo");
+ goto out;
+ }
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* Import snapshot info from peer_data and add it to priv */
+int32_t
+glusterd_import_friend_snap (dict_t *peer_data, int32_t snap_count,
+ char *peer_snap_name, char *peer_snap_id)
+{
+ char buf[NAME_MAX] = "";
+ char prefix[NAME_MAX] = "";
+ dict_t *dict = NULL;
+ glusterd_snap_t *snap = NULL;
+ glusterd_volinfo_t *snap_vol = NULL;
+ glusterd_conf_t *priv = NULL;
+ int32_t ret = -1;
+ int32_t volcount = -1;
+ int32_t i = -1;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
+ GF_ASSERT (peer_data);
+ GF_ASSERT (peer_snap_name);
+ GF_ASSERT (peer_snap_id);
+
+ snprintf (prefix, sizeof(prefix), "snap%d", snap_count);
+
+ snap = glusterd_new_snap_object ();
+ if (!snap) {
+ gf_log (this->name, GF_LOG_ERROR, "Could not create "
+ "the snap object for snap %s", peer_snap_name);
+ goto out;
+ }
+
+ dict = dict_new ();
+ if (!dict) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to create dict");
+ ret = -1;
+ goto out;
+ }
+
+ strcpy (snap->snapname, peer_snap_name);
+ uuid_parse (peer_snap_id, snap->snap_id);
+
+ snprintf (buf, sizeof(buf), "%s.snapid", prefix);
+ ret = dict_get_str (peer_data, buf, &snap->description);
+
+ snprintf (buf, sizeof(buf), "%s.time_stamp", prefix);
+ ret = dict_get_int64 (peer_data, buf, &snap->time_stamp);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to get time_stamp for snap %s",
+ peer_snap_name);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.snap_restored", prefix);
+ ret = dict_get_int8 (peer_data, buf, (int8_t *) &snap->snap_restored);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to get snap_restored for snap %s",
+ peer_snap_name);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.snap_status", prefix);
+ ret = dict_get_int32 (peer_data, buf, (int32_t *) &snap->snap_status);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to get snap_status for snap %s",
+ peer_snap_name);
+ goto out;
+ }
+
+ /* If the snap is scheduled to be decommissioned, then
+ * don't accept the snap */
+ if (snap->snap_status == GD_SNAP_STATUS_DECOMMISSION) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "The snap(%s) is scheduled to be decommissioned "
+ "Not accepting the snap.", peer_snap_name);
+ glusterd_snap_remove (dict, snap,
+ _gf_true, _gf_true);
+ ret = 0;
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf), "%s.volcount", prefix);
+ ret = dict_get_int32 (peer_data, buf, &volcount);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to get volcount for snap %s",
+ peer_snap_name);
+ goto out;
+ }
+
+ ret = glusterd_store_create_snap_dir (snap);
+ if (ret) {
+ gf_log (THIS->name, GF_LOG_ERROR, "Failed to create snap dir");
+ goto out;
+ }
+
+ list_add_order (&snap->snap_list, &priv->snapshots,
+ glusterd_compare_snap_time);
+
+ for (i = 1; i <= volcount; i++) {
+ ret = glusterd_import_volinfo (peer_data, i,
+ &snap_vol, prefix);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to import snap volinfo for "
+ "snap %s", peer_snap_name);
+ goto out;
+ }
+
+ snap_vol->snapshot = snap;
+
+ ret = glusterd_gen_snap_volfiles (snap_vol, peer_snap_name);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to generate snap vol files "
+ "for snap %s", peer_snap_name);
+ goto out;
+ }
+
+ ret = glusterd_import_quota_conf (peer_data, i,
+ snap_vol, prefix);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to import quota conf "
+ "for snap %s", peer_snap_name);
+ goto out;
+ }
+
+ snap_vol = NULL;
+ }
+
+ ret = glusterd_store_snap (snap);
+ if (ret) {
+ gf_log (this->name, GF_LOG_WARNING, "Could not store snap"
+ "object %s", peer_snap_name);
+ goto out;
+ }
+
+out:
+ if (ret)
+ glusterd_snap_remove (dict, snap,
+ _gf_true, _gf_true);
+
+ if (dict)
+ dict_unref (dict);
+
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* During a peer-handshake, after the volumes have synced, and the list of
+ * missed snapshots have synced, the node will perform the pending deletes
+ * and restores on this list. At this point, the current snapshot list in
+ * the node will be updated, and hence in case of conflicts arising during
+ * snapshot handshake, the peer hosting the bricks will be given precedence
+ * Likewise, if there will be a conflict, and both peers will be in the same
+ * state, i.e either both would be hosting bricks or both would not be hosting
+ * bricks, then a decision can't be taken and a peer-reject will happen.
+ *
+ * glusterd_compare_and_update_snap() implements the following algorithm to
+ * perform the above task:
+ * Step 1: Start.
+ * Step 2: Check if the peer is missing a delete or restore on the said snap.
+ * If yes, goto step 6.
+ * Step 3: Check if there is a conflict between the peer's data and the
+ * local snap. If no, goto step 5.
+ * Step 4: As there is a conflict, check if both the peer and the local nodes
+ * are hosting bricks. Based on the results perform the following:
+ * Peer Hosts Bricks Local Node Hosts Bricks Action
+ * Yes Yes Goto Step 7
+ * No No Goto Step 7
+ * Yes No Goto Step 8
+ * No Yes Goto Step 6
+ * Step 5: Check if the local node is missing the peer's data.
+ * If yes, goto step 9.
+ * Step 6: It's a no-op. Goto step 10
+ * Step 7: Peer Reject. Goto step 10
+ * Step 8: Delete local node's data.
+ * Step 9: Accept Peer Data.
+ * Step 10: Stop
+ *
+ */
+int32_t
+glusterd_compare_and_update_snap (dict_t *peer_data, int32_t snap_count,
+ glusterd_peerinfo_t *peerinfo)
+{
+ char buf[NAME_MAX] = "";
+ char prefix[NAME_MAX] = "";
+ char *peer_snap_name = NULL;
+ char *peer_snap_id = NULL;
+ dict_t *dict = NULL;
+ glusterd_snap_t *snap = NULL;
+ gf_boolean_t conflict = _gf_false;
+ gf_boolean_t is_local = _gf_false;
+ gf_boolean_t is_hosted = _gf_false;
+ gf_boolean_t missed_delete = _gf_false;
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (peer_data);
+ GF_ASSERT (peerinfo);
+
+ snprintf (prefix, sizeof(prefix), "snap%d", snap_count);
+
+ /* Fetch the peer's snapname */
+ snprintf (buf, sizeof(buf), "%s.snapname", prefix);
+ ret = dict_get_str (peer_data, buf, &peer_snap_name);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to fetch snapname from peer: %s",
+ peerinfo->hostname);
+ goto out;
+ }
+
+ /* Fetch the peer's snap_id */
+ snprintf (buf, sizeof(buf), "%s.snap_id", prefix);
+ ret = dict_get_str (peer_data, buf, &peer_snap_id);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to fetch snap_id from peer: %s",
+ peerinfo->hostname);
+ goto out;
+ }
+
+ /* Check if the peer has missed a snap delete or restore
+ * resulting in stale data for the snap in question
+ */
+ missed_delete = glusterd_peer_has_missed_snap_delete (peerinfo,
+ peer_snap_id);
+ if (missed_delete == _gf_true) {
+ /* Peer has missed delete on the missing/conflicting snap_id */
+ gf_log (this->name, GF_LOG_INFO, "Peer %s has missed a delete "
+ "on snap %s", peerinfo->hostname, peer_snap_name);
+ ret = 0;
+ goto out;
+ }
+
+ /* Check if there is a conflict, and if the
+ * peer data is already present
+ */
+ glusterd_is_peer_snap_conflicting (peer_snap_name, peer_snap_id,
+ &conflict, &snap,
+ peerinfo->hostname);
+ if (conflict == _gf_false) {
+ if (snap) {
+ /* Peer has snap with the same snapname
+ * and snap_id. No need to accept peer data
+ */
+ ret = 0;
+ goto out;
+ } else {
+ /* Peer has snap with the same snapname
+ * and snap_id, which local node doesn't have.
+ */
+ goto accept_peer_data;
+ }
+ }
+
+ /* There is a conflict. Check if the current node is
+ * hosting bricks for the conflicted snap.
+ */
+ is_local = glusterd_are_snap_bricks_local (snap);
+
+ /* Check if the peer is hosting any bricks for the
+ * conflicting snap
+ */
+ snprintf (buf, sizeof(buf), "%s.host_bricks", prefix);
+ ret = dict_get_int8 (peer_data, buf, (int8_t *) &is_hosted);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to fetch host_bricks from peer: %s "
+ "for %s", peerinfo->hostname, peer_snap_name);
+ goto out;
+ }
+
+ /* As there is a conflict at this point of time, the data of the
+ * node that hosts a brick takes precedence. If both the local
+ * node and the peer are in the same state, i.e if both of them
+ * are either hosting or not hosting the bricks, for the snap,
+ * then it's a peer reject
+ */
+ if (is_hosted == is_local) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Conflict in snapshot %s with peer %s",
+ peer_snap_name, peerinfo->hostname);
+ ret = -1;
+ goto out;
+ }
+
+ if (is_hosted == _gf_false) {
+ /* If there was a conflict, and the peer is not hosting
+ * any brick, then don't accept peer data
+ */
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Peer doesn't hosts bricks for conflicting "
+ "snap(%s). Not accepting peer data.",
+ peer_snap_name);
+ ret = 0;
+ goto out;
+ }
+
+ /* The peer is hosting a brick in case of conflict
+ * And local node isn't. Hence remove local node's
+ * data and accept peer data
+ */
+
+ gf_log (this->name, GF_LOG_DEBUG, "Peer hosts bricks for conflicting "
+ "snap(%s). Removing local data. Accepting peer data.",
+ peer_snap_name);
+
+ dict = dict_new();
+ if (!dict) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to create dict");
+ ret = -1;
+ goto out;
+ }
+
+ ret = glusterd_snap_remove (dict, snap, _gf_true, _gf_false);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to remove snap %s", snap->snapname);
+ goto out;
+ }
+
+accept_peer_data:
+
+ /* Accept Peer Data */
+ ret = glusterd_import_friend_snap (peer_data, snap_count,
+ peer_snap_name, peer_snap_id);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to import snap %s from peer %s",
+ peer_snap_name, peerinfo->hostname);
+ goto out;
+ }
+
+out:
+ if (dict)
+ dict_unref (dict);
+
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+/* Compare snapshots present in peer_data, with the snapshots in
+ * the current node
+ */
+int32_t
+glusterd_compare_friend_snapshots (dict_t *peer_data,
+ glusterd_peerinfo_t *peerinfo)
+{
+ int32_t ret = -1;
+ int32_t snap_count = 0;
+ int i = 1;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (peer_data);
+ GF_ASSERT (peerinfo);
+
+ ret = dict_get_int32 (peer_data, "snap_count", &snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to fetch snap_count");
+ goto out;
+ }
+
+ for (i = 1; i <= snap_count; i++) {
+ /* Compare one snapshot from peer_data at a time */
+ ret = glusterd_compare_and_update_snap (peer_data, i, peerinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to compare snapshots with peer %s",
+ peerinfo->hostname);
+ goto out;
+ }
+ }
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+struct rpc_clnt*
+glusterd_snapd_get_rpc (glusterd_volinfo_t *volinfo)
+{
+ return volinfo->snapd.rpc;
+}
+
+int32_t
+glusterd_add_snapd_to_dict (glusterd_volinfo_t *volinfo,
+ dict_t *dict, int32_t count)
+{
+
+ int ret = -1;
+ int32_t pid = -1;
+ int32_t brick_online = -1;
+ char key[1024] = {0};
+ char base_key[1024] = {0};
+ char pidfile[PATH_MAX] = {0};
+ xlator_t *this = NULL;
+ glusterd_conf_t *priv = NULL;
+
+
+ GF_ASSERT (volinfo);
+ GF_ASSERT (dict);
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ priv = this->private;
+
+ snprintf (base_key, sizeof (base_key), "brick%d", count);
+ snprintf (key, sizeof (key), "%s.hostname", base_key);
+ ret = dict_set_str (dict, key, "Snapshot Daemon");
+ if (ret)
+ goto out;
+
+ snprintf (key, sizeof (key), "%s.path", base_key);
+ ret = dict_set_dynstr (dict, key, gf_strdup (uuid_utoa (MY_UUID)));
+ if (ret)
+ goto out;
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.port", base_key);
+ ret = dict_set_int32 (dict, key, volinfo->snapd.port);
+ if (ret)
+ goto out;
+
+ glusterd_get_snapd_pidfile (volinfo, pidfile, sizeof (pidfile));
+
+ brick_online = gf_is_service_running (pidfile, &pid);
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.pid", base_key);
+ ret = dict_set_int32 (dict, key, pid);
+ if (ret)
+ goto out;
+
+ memset (key, 0, sizeof (key));
+ snprintf (key, sizeof (key), "%s.status", base_key);
+ ret = dict_set_int32 (dict, key, brick_online);
+
+out:
+ if (ret)
+ gf_log (this->name, GF_LOG_DEBUG, "Returning %d", ret);
+
+ return ret;
+}
+
+int
+glusterd_snap_config_use_rsp_dict (dict_t *dst, dict_t *src)
+{
+ char buf[PATH_MAX] = "";
+ char *volname = NULL;
+ int ret = -1;
+ int config_command = 0;
+ uint64_t i = 0;
+ uint64_t hard_limit = GLUSTERD_SNAPS_MAX_HARD_LIMIT;
+ uint64_t soft_limit = GLUSTERD_SNAPS_DEF_SOFT_LIMIT_PERCENT;
+ uint64_t value = 0;
+ uint64_t voldisplaycount = 0;
+
+ if (!dst || !src) {
+ gf_log ("", GF_LOG_ERROR, "Source or Destination "
+ "dict is empty.");
+ goto out;
+ }
+
+ ret = dict_get_int32 (dst, "config-command", &config_command);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "failed to get config-command type");
+ goto out;
+ }
+
+ switch (config_command) {
+ case GF_SNAP_CONFIG_DISPLAY:
+ ret = dict_get_uint64 (src,
+ GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT,
+ &hard_limit);
+ if (!ret) {
+ ret = dict_set_uint64 (dst,
+ GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT,
+ hard_limit);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to set snap_max_hard_limit");
+ goto out;
+ }
+ } else {
+ /* Received dummy response from other nodes */
+ ret = 0;
+ goto out;
+ }
+
+ ret = dict_get_uint64 (src,
+ GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT,
+ &soft_limit);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to get snap_max_soft_limit");
+ goto out;
+ }
+
+ ret = dict_set_uint64 (dst,
+ GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT,
+ soft_limit);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to set snap_max_soft_limit");
+ goto out;
+ }
+
+ ret = dict_get_uint64 (src, "voldisplaycount",
+ &voldisplaycount);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to get voldisplaycount");
+ goto out;
+ }
+
+ ret = dict_set_uint64 (dst, "voldisplaycount",
+ voldisplaycount);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to set voldisplaycount");
+ goto out;
+ }
+
+ for (i = 0; i < voldisplaycount; i++) {
+ snprintf (buf, sizeof(buf),
+ "volume%"PRIu64"-volname", i);
+ ret = dict_get_str (src, buf, &volname);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to get %s", buf);
+ goto out;
+ }
+ ret = dict_set_str (dst, buf, volname);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to set %s", buf);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf),
+ "volume%"PRIu64"-snap-max-hard-limit", i);
+ ret = dict_get_uint64 (src, buf, &value);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to get %s", buf);
+ goto out;
+ }
+ ret = dict_set_uint64 (dst, buf, value);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to set %s", buf);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf),
+ "volume%"PRIu64"-active-hard-limit", i);
+ ret = dict_get_uint64 (src, buf, &value);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to get %s", buf);
+ goto out;
+ }
+ ret = dict_set_uint64 (dst, buf, value);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to set %s", buf);
+ goto out;
+ }
+
+ snprintf (buf, sizeof(buf),
+ "volume%"PRIu64"-snap-max-soft-limit", i);
+ ret = dict_get_uint64 (src, buf, &value);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to get %s", buf);
+ goto out;
+ }
+ ret = dict_set_uint64 (dst, buf, value);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR,
+ "Unable to set %s", buf);
+ goto out;
+ }
+ }
+
+ break;
+ default:
+ break;
+ }
+
+ ret = 0;
+out:
+ gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
+ return ret;
+}
+
+int
+glusterd_merge_brick_status (dict_t *dst, dict_t *src)
+{
+ int64_t volume_count = 0;
+ int64_t index = 0;
+ int64_t j = 0;
+ int64_t brick_count = 0;
+ int64_t brick_order = 0;
+ char key[PATH_MAX] = {0, };
+ char snapbrckcnt[PATH_MAX] = {0, };
+ char snapbrckord[PATH_MAX] = {0, };
+ int ret = -1;
+ int32_t brick_online = 0;
+ xlator_t *this = NULL;
+ int32_t snap_command = 0;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ if (!dst || !src) {
+ gf_log (this->name, GF_LOG_ERROR, "Source or Destination "
+ "dict is empty.");
+ goto out;
+ }
+
+ ret = dict_get_int32 (dst, "type", &snap_command);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "unable to get the type of "
+ "the snapshot command");
+ goto out;
+ }
+
+ if (snap_command == GF_SNAP_OPTION_TYPE_DELETE) {
+ gf_log (this->name, GF_LOG_DEBUG, "snapshot delete command."
+ " Need not merge the status of the bricks");
+ ret = 0;
+ goto out;
+ }
+
+ ret = dict_get_int64 (src, "volcount", &volume_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to "
+ "get the volume count");
+ goto out;
+ }
+
+ for (index = 0; index < volume_count; index++) {
+ ret = snprintf (snapbrckcnt, sizeof(snapbrckcnt) - 1,
+ "snap-vol%"PRId64"_brickcount", index+1);
+ ret = dict_get_int64 (src, snapbrckcnt, &brick_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_TRACE,
+ "No bricks for this volume in this dict (%s)",
+ snapbrckcnt);
+ continue;
+ }
+
+ for (j = 0; j < brick_count; j++) {
+ /* Fetching data from source dict */
+ snprintf (snapbrckord, sizeof(snapbrckord) - 1,
+ "snap-vol%"PRId64".brick%"PRId64".order",
+ index+1, j);
+
+ ret = dict_get_int64 (src, snapbrckord, &brick_order);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to get brick order (%s)",
+ snapbrckord);
+ goto out;
+ }
+
+ snprintf (key, sizeof (key) - 1,
+ "snap-vol%"PRId64".brick%"PRId64".status",
+ index+1, brick_order);
+ ret = dict_get_int32 (src, key, &brick_online);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to "
+ "get the brick status (%s)", key);
+ goto out;
+ }
+
+ ret = dict_set_int32 (dst, key, brick_online);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to "
+ "set the brick status (%s)", key);
+ goto out;
+ }
+ brick_online = 0;
+ }
+ }
+
+ ret = 0;
+
+out:
+ return ret;
+}
+
+/* Aggregate missed_snap_counts from different nodes and save it *
+ * in the req_dict of the originator node */
+int
+glusterd_snap_create_use_rsp_dict (dict_t *dst, dict_t *src)
+{
+ char *buf = NULL;
+ char *tmp_str = NULL;
+ char name_buf[PATH_MAX] = "";
+ int32_t i = -1;
+ int32_t ret = -1;
+ int32_t src_missed_snap_count = -1;
+ int32_t dst_missed_snap_count = -1;
+ xlator_t *this = NULL;
+ int8_t soft_limit_flag = -1;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ if (!dst || !src) {
+ gf_log (this->name, GF_LOG_ERROR, "Source or Destination "
+ "dict is empty.");
+ goto out;
+ }
+
+ ret = glusterd_merge_brick_status (dst, src);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to merge brick "
+ "status");
+ goto out;
+ }
+
+ ret = dict_get_str (src, "snapuuid", &buf);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to get snap UUID");
+ goto out;
+ }
+
+ ret = dict_set_dynstr_with_alloc (dst, "snapuuid", buf);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to set snap uuid in dict");
+ goto out;
+ }
+
+ /* set in dst dictionary soft-limit-reach only if soft-limit-reach
+ * is present src dictionary */
+ ret = dict_get_int8 (src, "soft-limit-reach", &soft_limit_flag);
+ if (!ret) {
+ ret = dict_set_int8 (dst, "soft-limit-reach", soft_limit_flag);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to set "
+ "soft_limit_flag");
+ goto out;
+ }
+ }
+
+ ret = dict_get_int32 (src, "missed_snap_count",
+ &src_missed_snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_DEBUG, "No missed snaps");
+ ret = 0;
+ goto out;
+ }
+
+ ret = dict_get_int32 (dst, "missed_snap_count",
+ &dst_missed_snap_count);
+ if (ret) {
+ /* Initialize dst_missed_count for the first time */
+ dst_missed_snap_count = 0;
+ }
+
+ for (i = 0; i < src_missed_snap_count; i++) {
+ snprintf (name_buf, sizeof(name_buf), "missed_snaps_%d", i);
+ ret = dict_get_str (src, name_buf, &buf);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to fetch %s", name_buf);
+ goto out;
+ }
+
+ snprintf (name_buf, sizeof(name_buf), "missed_snaps_%d",
+ dst_missed_snap_count);
+
+ tmp_str = gf_strdup (buf);
+ if (!tmp_str) {
+ ret = -1;
+ goto out;
+ }
+
+ ret = dict_set_dynstr (dst, name_buf, tmp_str);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set %s", name_buf);
+ goto out;
+ }
+
+ tmp_str = NULL;
+ dst_missed_snap_count++;
+ }
+
+ ret = dict_set_int32 (dst, "missed_snap_count", dst_missed_snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unable to set dst_missed_snap_count");
+ goto out;
+ }
+
+out:
+ if (ret && tmp_str)
+ GF_FREE(tmp_str);
+
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+int
+glusterd_snap_use_rsp_dict (dict_t *dst, dict_t *src)
+{
+ int ret = -1;
+ int32_t snap_command = 0;
+
+ if (!dst || !src) {
+ gf_log ("", GF_LOG_ERROR, "Source or Destination "
+ "dict is empty.");
+ goto out;
+ }
+
+ ret = dict_get_int32 (dst, "type", &snap_command);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "unable to get the type of "
+ "the snapshot command");
+ goto out;
+ }
+
+ switch (snap_command) {
+ case GF_SNAP_OPTION_TYPE_CREATE:
+ case GF_SNAP_OPTION_TYPE_DELETE:
+ ret = glusterd_snap_create_use_rsp_dict (dst, src);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to use rsp dict");
+ goto out;
+ }
+ break;
+ case GF_SNAP_OPTION_TYPE_CONFIG:
+ ret = glusterd_snap_config_use_rsp_dict (dst, src);
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to use rsp dict");
+ goto out;
+ }
+ break;
+ default:
+ /* copy the response dictinary's contents to the dict to be
+ * sent back to the cli */
+ dict_copy (src, dst);
+ break;
+ }
+
+ ret = 0;
+out:
+ gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
+ return ret;
+}
+
+int
+glusterd_compare_snap_time(struct list_head *list1, struct list_head *list2)
+{
+ glusterd_snap_t *snap1 = NULL;
+ glusterd_snap_t *snap2 = NULL;
+ double diff_time = 0;
+
+ GF_ASSERT (list1);
+ GF_ASSERT (list2);
+
+ snap1 = list_entry(list1, glusterd_snap_t, snap_list);
+ snap2 = list_entry(list2, glusterd_snap_t, snap_list);
+ diff_time = difftime(snap1->time_stamp, snap2->time_stamp);
+
+ return (int)diff_time;
+}
+
+int
+glusterd_compare_snap_vol_time(struct list_head *list1, struct list_head *list2)
+{
+ glusterd_volinfo_t *snapvol1 = NULL;
+ glusterd_volinfo_t *snapvol2 = NULL;
+ double diff_time = 0;
+
+ GF_ASSERT (list1);
+ GF_ASSERT (list2);
+
+ snapvol1 = list_entry(list1, glusterd_volinfo_t, snapvol_list);
+ snapvol2 = list_entry(list2, glusterd_volinfo_t, snapvol_list);
+ diff_time = difftime(snapvol1->snapshot->time_stamp,
+ snapvol2->snapshot->time_stamp);
+
+ return (int)diff_time;
+}
+
+int32_t
+glusterd_missed_snapinfo_new (glusterd_missed_snap_info **missed_snapinfo)
+{
+ glusterd_missed_snap_info *new_missed_snapinfo = NULL;
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (missed_snapinfo);
+
+ new_missed_snapinfo = GF_CALLOC (1, sizeof(*new_missed_snapinfo),
+ gf_gld_mt_missed_snapinfo_t);
+
+ if (!new_missed_snapinfo)
+ goto out;
+
+ INIT_LIST_HEAD (&new_missed_snapinfo->missed_snaps);
+ INIT_LIST_HEAD (&new_missed_snapinfo->snap_ops);
+
+ *missed_snapinfo = new_missed_snapinfo;
+
+ ret = 0;
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+int32_t
+glusterd_missed_snap_op_new (glusterd_snap_op_t **snap_op)
+{
+ glusterd_snap_op_t *new_snap_op = NULL;
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (snap_op);
+
+ new_snap_op = GF_CALLOC (1, sizeof(*new_snap_op),
+ gf_gld_mt_missed_snapinfo_t);
+
+ if (!new_snap_op)
+ goto out;
+
+ new_snap_op->brick_num = -1;
+ new_snap_op->op = -1;
+ new_snap_op->status = -1;
+ INIT_LIST_HEAD (&new_snap_op->snap_ops_list);
+
+ *snap_op = new_snap_op;
+
+ ret = 0;
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
+
+gf_boolean_t
+mntopts_exists (const char *str, const char *opts)
+{
+ char *dup_val = NULL;
+ char *savetok = NULL;
+ char *token = NULL;
+ gf_boolean_t exists = _gf_false;
+
+ GF_ASSERT (opts);
+
+ if (!str || !strlen(str))
+ goto out;
+
+ dup_val = gf_strdup (str);
+ if (!dup_val)
+ goto out;
+
+ token = strtok_r (dup_val, ",", &savetok);
+ while (token) {
+ if (!strcmp (token, opts)) {
+ exists = _gf_true;
+ goto out;
+ }
+ token = strtok_r (NULL, ",", &savetok);
+ }
+
+out:
+ GF_FREE (dup_val);
+ return exists;
+}
+
+int32_t
+glusterd_mount_lvm_snapshot (glusterd_brickinfo_t *brickinfo,
+ char *brick_mount_path)
+{
+ char msg[NAME_MAX] = "";
+ char mnt_opts[1024] = "";
+ int32_t ret = -1;
+ runner_t runner = {0, };
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (brick_mount_path);
+ GF_ASSERT (brickinfo);
+
+
+ runinit (&runner);
+ snprintf (msg, sizeof (msg), "mount %s %s",
+ brickinfo->device_path, brick_mount_path);
+
+ strcpy (mnt_opts, brickinfo->mnt_opts);
+
+ /* XFS file-system does not allow to mount file-system with duplicate
+ * UUID. File-system UUID of snapshot and its origin volume is same.
+ * Therefore to mount such a snapshot in XFS we need to pass nouuid
+ * option
+ */
+ if (!strcmp (brickinfo->fstype, "xfs") &&
+ !mntopts_exists (mnt_opts, "nouuid")) {
+ if (strlen (mnt_opts) > 0)
+ strcat (mnt_opts, ",");
+ strcat (mnt_opts, "nouuid");
+ }
+
+
+ if (strlen (mnt_opts) > 0) {
+ runner_add_args (&runner, "mount", "-o", mnt_opts,
+ brickinfo->device_path, brick_mount_path, NULL);
+ } else {
+ runner_add_args (&runner, "mount", brickinfo->device_path,
+ brick_mount_path, NULL);
+ }
+
+ runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
+ ret = runner_run (&runner);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "mounting the snapshot "
+ "logical device %s failed (error: %s)",
+ brickinfo->device_path, strerror (errno));
+ goto out;
+ } else
+ gf_log (this->name, GF_LOG_DEBUG, "mounting the snapshot "
+ "logical device %s successful", brickinfo->device_path);
+
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning with %d", ret);
+ return ret;
+}
+
+gf_boolean_t
+glusterd_volume_quorum_calculate (glusterd_volinfo_t *volinfo, dict_t *dict,
+ int down_count, gf_boolean_t first_brick_on,
+ int8_t snap_force, int quorum_count,
+ char *quorum_type, char **op_errstr)
+{
+ gf_boolean_t quorum_met = _gf_false;
+ char err_str[PATH_MAX] = {0, };
+ xlator_t *this = NULL;
+ int up_count = 0;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ if (!volinfo || !dict) {
+ gf_log (this->name, GF_LOG_WARNING, "input parameters NULL");
+ goto out;
+ }
+
+ if (!snap_force && down_count) {
+ snprintf (err_str, sizeof (err_str), "One or more bricks may "
+ "be down. Use the force option ");
+ gf_log (this->name, GF_LOG_ERROR, "%s", err_str);
+ *op_errstr = gf_strdup (err_str);
+ goto out;
+ }
+
+ up_count = volinfo->dist_leaf_count - down_count;
+
+ if (quorum_type && !strcmp (quorum_type, "fixed")) {
+ if (up_count >= quorum_count) {
+ quorum_met = _gf_true;
+ goto out;
+ }
+ } else {
+ if ((GF_CLUSTER_TYPE_DISPERSE != volinfo->type) &&
+ (volinfo->dist_leaf_count % 2 == 0)) {
+ if ((up_count > quorum_count) ||
+ ((up_count == quorum_count) && first_brick_on)) {
+ quorum_met = _gf_true;
+ goto out;
+ }
+ } else {
+ if (up_count >= quorum_count) {
+ quorum_met = _gf_true;
+ goto out;
+ }
+ }
+ }
+
+ if (!quorum_met) {
+ snprintf (err_str, sizeof (err_str), "quorum is not met");
+ gf_log (this->name, GF_LOG_WARNING, "%s", err_str);
+ *op_errstr = gf_strdup (err_str);
+ }
+
+out:
+ return quorum_met;
+}
+
+int32_t
+glusterd_volume_quorum_check (glusterd_volinfo_t *volinfo, int64_t index,
+ dict_t *dict, char *key_prefix,
+ int8_t snap_force, int quorum_count,
+ char *quorum_type, char **op_errstr)
+{
+ int ret = 0;
+ xlator_t *this = NULL;
+ int64_t i = 0;
+ int64_t j = 0;
+ char key[1024] = {0, };
+ int down_count = 0;
+ gf_boolean_t first_brick_on = _gf_true;
+ glusterd_conf_t *priv = NULL;
+ gf_boolean_t quorum_met = _gf_false;
+ int distribute_subvols = 0;
+ int32_t brick_online = 0;
+ char err_str[PATH_MAX] = {0, };
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ if (!volinfo || !dict) {
+ gf_log (this->name, GF_LOG_WARNING, "input parameters NULL");
+ goto out;
+ }
+
+ if ((!glusterd_is_volume_replicate (volinfo) ||
+ volinfo->replica_count < 3) &&
+ (GF_CLUSTER_TYPE_DISPERSE != volinfo->type)) {
+ for (i = 0; i < volinfo->brick_count ; i++) {
+ /* for a pure distribute volume, and replica volume
+ with replica count 2, quorum is not met if even
+ one of its subvolumes is down
+ */
+ snprintf (key, sizeof (key),
+ "%s%"PRId64".brick%"PRId64".status",
+ key_prefix, index, i);
+ ret = dict_get_int32 (dict, key, &brick_online);
+ if (ret || !brick_online) {
+ ret = 1;
+ snprintf (err_str, sizeof (err_str), "quorum "
+ "is not met");
+ gf_log (this->name, GF_LOG_ERROR, "%s",
+ err_str);
+ *op_errstr = gf_strdup (err_str);
+ goto out;
+ }
+ }
+ ret = 0;
+ quorum_met = _gf_true;
+ } else {
+ distribute_subvols = volinfo->brick_count /
+ volinfo->dist_leaf_count;
+ for (j = 0; j < distribute_subvols; j++) {
+ /* by default assume quorum is not met
+ TODO: Handle distributed striped replicate volumes
+ Currently only distributed replicate volumes are
+ handled.
+ */
+ ret = 1;
+ quorum_met = _gf_false;
+ for (i = 0; i < volinfo->dist_leaf_count; i++) {
+ snprintf (key, sizeof (key),
+ "%s%"PRId64".brick%"PRId64".status",
+ key_prefix, index,
+ (j * volinfo->dist_leaf_count) + i);
+ ret = dict_get_int32 (dict, key, &brick_online);
+ if (ret || !brick_online) {
+ if (i == 0)
+ first_brick_on = _gf_false;
+ down_count++;
+ }
+ }
+
+ quorum_met = glusterd_volume_quorum_calculate (volinfo,
+ dict,
+ down_count,
+ first_brick_on,
+ snap_force,
+ quorum_count,
+ quorum_type,
+ op_errstr);
+ /* goto out if quorum is not met */
+ if (!quorum_met) {
+ ret = -1;
+ goto out;
+ }
+
+ down_count = 0;
+ first_brick_on = _gf_true;
+ }
+ }
+
+ if (quorum_met) {
+ gf_log (this->name, GF_LOG_DEBUG, "volume %s is in quorum",
+ volinfo->volname);
+ ret = 0;
+ }
+
+out:
+ return ret;
+}
+
+int32_t
+glusterd_snap_quorum_check_for_create (dict_t *dict, gf_boolean_t snap_volume,
+ char **op_errstr,
+ struct list_head *peers_list)
+{
+ int8_t snap_force = 0;
+ int32_t force = 0;
+ char err_str[PATH_MAX] = {0, };
+ int quorum_count = 0;
+ char *quorum_type = NULL;
+ int32_t tmp = 0;
+ char key_prefix[PATH_MAX] = {0, };
+ char *snapname = NULL;
+ glusterd_snap_t *snap = NULL;
+ glusterd_volinfo_t *volinfo = NULL;
+ char *volname = NULL;
+ int64_t volcount = 0;
+ char key[PATH_MAX] = {0, };
+ int64_t i = 0;
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ if (!dict) {
+ gf_log (this->name, GF_LOG_ERROR, "dict is NULL");
+ goto out;
+ }
+
+ if (snap_volume) {
+ ret = dict_get_str (dict, "snapname", &snapname);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to "
+ "get snapname");
+ goto out;
+ }
+
+ snap = glusterd_find_snap_by_name (snapname);
+ if (!snap) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to "
+ "get the snapshot %s", snapname);
+ ret = -1;
+ goto out;
+ }
+ }
+
+ ret = dict_get_int32 (dict, "flags", &force);
+ if (!ret && (force & GF_CLI_FLAG_OP_FORCE))
+ snap_force = 1;
+ if (!snap_force) {
+ /* Do a quorum check of glusterds also. Because,
+ the missed snapshot information will be saved
+ by glusterd and if glusterds are not in
+ quorum, then better fail the snapshot
+ */
+ if (!does_gd_meet_server_quorum (this, peers_list, _gf_true)) {
+ snprintf (err_str, sizeof (err_str),
+ "glusterds are not in quorum");
+ gf_log (this->name, GF_LOG_WARNING, "%s",
+ err_str);
+ *op_errstr = gf_strdup (err_str);
+ ret = -1;
+ goto out;
+ }
+
+ gf_log (this->name, GF_LOG_DEBUG, "glusterds are in "
+ "quorum");
+ }
+
+ ret = dict_get_int64 (dict, "volcount", &volcount);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to get "
+ "volcount");
+ goto out;
+ }
+
+ for (i = 1; i <= volcount; i++) {
+ snprintf (key, sizeof (key), "%s%"PRId64,
+ snap_volume?"snap-volname":"volname", i);
+ ret = dict_get_str (dict, key, &volname);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "failed to "
+ "get volname");
+ goto out;
+ }
+
+ if (snap_volume) {
+ ret = glusterd_snap_volinfo_find (volname, snap,
+ &volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "failed to get snap volume %s "
+ "for snap %s", volname,
+ snapname);
+ goto out;
+ }
+ } else {
+ ret = glusterd_volinfo_find (volname, &volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "failed to find the volume %s",
+ volname);
+ goto out;
+ }
+ }
+
+ /* for replicate volumes with replica count equal to or
+ greater than 3, do quorum check by getting what type
+ of quorum rule has been set by getting the volume
+ option set. If getting the option fails, then assume
+ default.
+ AFR does this:
+ if quorum type is "auto":
+ - for odd numner of bricks (n), n/2 + 1
+ bricks should be present
+ - for even number of bricks n, n/2 bricks
+ should be present along with the 1st
+ subvolume
+ if quorum type is not "auto":
+ - get the quorum count from dict with the
+ help of the option "cluster.quorum-count"
+ if the option is not there in the dict,
+ then assume quorum type is auto and follow
+ the above method.
+ For non replicate volumes quorum is met only if all
+ the bricks of the volume are online
+ */
+
+ if (GF_CLUSTER_TYPE_REPLICATE == volinfo->type) {
+ if (volinfo->replica_count % 2 == 0)
+ quorum_count = volinfo->replica_count/2;
+ else
+ quorum_count =
+ volinfo->replica_count/2 + 1;
+ } else if (GF_CLUSTER_TYPE_DISPERSE == volinfo->type) {
+ quorum_count = volinfo->disperse_count -
+ volinfo->redundancy_count;
+ } else {
+ quorum_count = volinfo->brick_count;
+ }
+
+ ret = dict_get_str (volinfo->dict,
+ "cluster.quorum-type",
+ &quorum_type);
+ if (!ret && !strcmp (quorum_type, "fixed")) {
+ ret = dict_get_int32 (volinfo->dict,
+ "cluster.quorum-count",
+ &tmp);
+ /* if quorum-type option is not found in the
+ dict assume auto quorum type. i.e n/2 + 1.
+ The same assumption is made when quorum-count
+ option cannot be obtained from the dict (even
+ if the quorum-type option is not set to auto,
+ the behavior is set to the default behavior)
+ */
+ if (!ret) {
+ /* for dispersed volumes, only allow quorums
+ equal or larger than minimum functional
+ value.
+ */
+ if ((GF_CLUSTER_TYPE_DISPERSE !=
+ volinfo->type) ||
+ (tmp >= quorum_count)) {
+ quorum_count = tmp;
+ } else {
+ gf_log(this->name, GF_LOG_INFO,
+ "Ignoring small quorum-count "
+ "(%d) on dispersed volume", tmp);
+ quorum_type = NULL;
+ }
+ } else
+ quorum_type = NULL;
+ }
+
+ snprintf (key_prefix, sizeof (key_prefix),
+ "%s", snap_volume?"snap-vol":"vol");
+
+ ret = glusterd_volume_quorum_check (volinfo, i, dict,
+ key_prefix,
+ snap_force,
+ quorum_count,
+ quorum_type,
+ op_errstr);
+ if (ret) {
+ gf_log (this->name, GF_LOG_WARNING, "volume %s "
+ "is not in quorum", volinfo->volname);
+ goto out;
+ }
+ }
+out:
+ return ret;
+}
+
+int32_t
+glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
+ char **op_errstr,
+ struct list_head *peers_list)
+{
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ int32_t snap_command = 0;
+ char err_str[PATH_MAX] = {0, };
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ if (!dict) {
+ gf_log (this->name, GF_LOG_ERROR, "dict is NULL");
+ goto out;
+ }
+
+
+ ret = dict_get_int32 (dict, "type", &snap_command);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "unable to get the type of "
+ "the snapshot command");
+ goto out;
+ }
+
+ switch (snap_command) {
+ case GF_SNAP_OPTION_TYPE_CREATE:
+ ret = glusterd_snap_quorum_check_for_create (dict, snap_volume,
+ op_errstr,
+ peers_list);
+ if (ret) {
+ gf_log (this->name, GF_LOG_WARNING, "Quorum check"
+ "failed during snapshot create command");
+ goto out;
+ }
+ break;
+ case GF_SNAP_OPTION_TYPE_DELETE:
+ case GF_SNAP_OPTION_TYPE_RESTORE:
+ if (!does_gd_meet_server_quorum (this, peers_list, _gf_true)) {
+ ret = -1;
+ snprintf (err_str, sizeof (err_str),
+ "glusterds are not in quorum");
+ gf_log (this->name, GF_LOG_WARNING, "%s",
+ err_str);
+ *op_errstr = gf_strdup (err_str);
+ goto out;
+ }
+
+ gf_log (this->name, GF_LOG_DEBUG, "glusterds are in "
+ "quorum");
+ break;
+ default:
+ break;
+ }
+
+ ret = 0;
+
+out:
+ return ret;
+}
+
+int32_t
+glusterd_umount (const char *path)
+{
+ char msg[NAME_MAX] = "";
+ int32_t ret = -1;
+ runner_t runner = {0, };
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (path);
+
+ runinit (&runner);
+ snprintf (msg, sizeof (msg), "umount path %s", path);
+ runner_add_args (&runner, _PATH_UMOUNT, "-f", path, NULL);
+ runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
+ ret = runner_run (&runner);
+ if (ret)
+ gf_log (this->name, GF_LOG_ERROR, "umounting %s failed (%s)",
+ path, strerror (errno));
+
+ gf_log (this->name, GF_LOG_TRACE, "Returning with %d", ret);
+ return ret;
+}
+
+int32_t
+glusterd_copy_file (const char *source, const char *destination)
+{
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ char buffer[1024] = "";
+ int src_fd = -1;
+ int dest_fd = -1;
+ int read_len = -1;
+ struct stat stbuf = {0,};
+ mode_t dest_mode = 0;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ GF_ASSERT (source);
+ GF_ASSERT (destination);
+
+ /* Here is stat is made to get the file permission of source file*/
+ ret = lstat (source, &stbuf);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "%s not found", source);
+ goto out;
+ }
+
+ dest_mode = stbuf.st_mode & 0777;
+
+ src_fd = open (source, O_RDONLY);
+ if (src_fd < 0) {
+ ret = -1;
+ gf_log (this->name, GF_LOG_ERROR, "Unable to open file %s",
+ source);
+ goto out;
+ }
+
+ dest_fd = open (destination, O_CREAT | O_RDWR, dest_mode);
+ if (dest_fd < 0) {
+ ret = -1;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Unble to open a file %s", destination);
+ goto out;
+ }
+
+ do {
+ ret = read (src_fd, buffer, sizeof (buffer));
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR, "Error reading file "
+ "%s", source);
+ goto out;
+ }
+ read_len = ret;
+ if (read_len == 0)
+ break;
+
+ ret = write (dest_fd, buffer, read_len);
+ if (ret != read_len) {
+ gf_log (this->name, GF_LOG_ERROR, "Error writing in "
+ "file %s", destination);
+ goto out;
+ }
+ } while (ret > 0);
+out:
+ if (src_fd > 0)
+ close (src_fd);
+
+ if (dest_fd > 0)
+ close (dest_fd);
+ return ret;
+}
+
+int32_t
+glusterd_copy_folder (const char *source, const char *destination)
+{
+ DIR *dir_ptr = NULL;
+ struct dirent *direntp = NULL;
+ int32_t ret = -1;
+ char src_path[PATH_MAX] = "";
+ char dest_path[PATH_MAX] = "";
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ GF_ASSERT (source);
+ GF_ASSERT (destination);
+
+ dir_ptr = opendir (source);
+ if (!dir_ptr) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to open %s", source);
+ goto out;
+ }
+
+ while ((direntp = readdir (dir_ptr)) != NULL) {
+ if (strcmp (direntp->d_name, ".") == 0 ||
+ strcmp (direntp->d_name, "..") == 0)
+ continue;
+ ret = snprintf (src_path, sizeof (src_path), "%s/%s",
+ source, direntp->d_name);
+ if (ret < 0)
+ goto out;
+
+ ret = snprintf (dest_path, sizeof (dest_path), "%s/%s",
+ destination, direntp->d_name);
+ if (ret < 0)
+ goto out;
+
+ ret = glusterd_copy_file (src_path, dest_path);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Could not copy "
+ "%s to %s", src_path, dest_path);
+ goto out;
+ }
+ }
+out:
+ if (dir_ptr)
+ closedir (dir_ptr);
+
+ return ret;
+}
+
+int32_t
+glusterd_get_geo_rep_session (char *slave_key, char *origin_volname,
+ dict_t *gsync_slaves_dict, char *session,
+ char *slave)
+{
+ int32_t ret = -1;
+ char *token = NULL;
+ char *temp = NULL;
+ char *ip = NULL;
+ char *buffer = NULL;
+ xlator_t *this = NULL;
+ char *slave_temp = NULL;
+ char *save_ptr = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ GF_ASSERT (slave_key);
+ GF_ASSERT (origin_volname);
+ GF_ASSERT (gsync_slaves_dict);
+
+ ret = dict_get_str (gsync_slaves_dict, slave_key, &buffer);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to "
+ "get value for key %s", slave_key);
+ goto out;
+ }
+
+ temp = gf_strdup (buffer);
+ if (!temp) {
+ ret = -1;
+ goto out;
+ }
+
+ token = strtok_r (temp, "/", &save_ptr);
+
+ token = strtok_r (NULL, ":", &save_ptr);
+ if (!token) {
+ ret = -1;
+ goto out;
+ }
+ token++;
+
+ ip = gf_strdup (token);
+ if (!ip) {
+ ret = -1;
+ goto out;
+ }
+
+ token = strtok_r (NULL, "\0", &save_ptr);
+ if (!token) {
+ ret = -1;
+ goto out;
+ }
+ token++;
+
+ slave_temp = gf_strdup (token);
+ if (!slave) {
+ ret = -1;
+ goto out;
+ }
+
+ ret = snprintf (session, PATH_MAX, "%s_%s_%s",
+ origin_volname, ip, slave_temp);
+ if (ret < 0) /* Negative value is an error */
+ goto out;
+
+ ret = snprintf (slave, PATH_MAX, "%s::%s", ip, slave_temp);
+ if (ret < 0) {
+ goto out;
+ }
+
+ ret = 0; /* Success */
+
+out:
+ if (temp)
+ GF_FREE (temp);
+
+ if (ip)
+ GF_FREE (ip);
+
+ if (slave_temp)
+ GF_FREE (slave_temp);
+
+ return ret;
+}
+
+int32_t
+glusterd_copy_quota_files (glusterd_volinfo_t *src_vol,
+ glusterd_volinfo_t *dest_vol) {
+
+ int32_t ret = -1;
+ char src_dir[PATH_MAX] = "";
+ char dest_dir[PATH_MAX] = "";
+ char src_path[PATH_MAX] = "";
+ char dest_path[PATH_MAX] = "";
+ xlator_t *this = NULL;
+ glusterd_conf_t *priv = NULL;
+ struct stat stbuf = {0,};
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ GF_ASSERT (src_vol);
+ GF_ASSERT (dest_vol);
+
+ GLUSTERD_GET_VOLUME_DIR (src_dir, src_vol, priv);
+
+ GLUSTERD_GET_VOLUME_DIR (dest_dir, dest_vol, priv);
+
+ ret = snprintf (src_path, sizeof (src_path), "%s/quota.conf",
+ src_dir);
+ if (ret < 0)
+ goto out;
+
+ /* quota.conf is not present if quota is not enabled, Hence ignoring
+ * the absence of this file
+ */
+ ret = lstat (src_path, &stbuf);
+ if (ret) {
+ ret = 0;
+ gf_log (this->name, GF_LOG_DEBUG, "%s not found", src_path);
+ goto out;
+ }
+
+ ret = snprintf (dest_path, sizeof (dest_path), "%s/quota.conf",
+ dest_dir);
+ if (ret < 0)
+ goto out;
+
+ ret = glusterd_copy_file (src_path, dest_path);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to copy %s in %s",
+ src_path, dest_path);
+ goto out;
+ }
+
+ ret = snprintf (src_path, sizeof (src_path), "%s/quota.cksum",
+ src_dir);
+ if (ret < 0)
+ goto out;
+
+ /* If quota.conf is present and quota.cksum is not present, then
+ * that scenario is considered as invalid, hence error out.
+ */
+ ret = lstat (src_path, &stbuf);
+ if (ret) {
+ ret = -1;
+ gf_log (this->name, GF_LOG_ERROR, "%s not found", src_path);
+ goto out;
+ }
+
+ ret = snprintf (dest_path, sizeof (dest_path), "%s/quota.cksum",
+ dest_dir);
+ if (ret < 0)
+ goto out;
+
+ ret = glusterd_copy_file (src_path, dest_path);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to copy %s in %s",
+ src_path, dest_path);
+ goto out;
+ }
+
+out:
+ return ret;
+
+}
+
+int32_t
+glusterd_restore_geo_rep_files (glusterd_volinfo_t *snap_vol)
+{
+ int32_t ret = -1;
+ char src_path[PATH_MAX] = "";
+ char dest_path[PATH_MAX] = "";
+ xlator_t *this = NULL;
+ char *origin_volname = NULL;
+ glusterd_volinfo_t *origin_vol = NULL;
+ int i = 0;
+ char key[PATH_MAX] = "";
+ char session[PATH_MAX] = "";
+ char slave[PATH_MAX] = "";
+ char snapgeo_dir[PATH_MAX] = "";
+ glusterd_conf_t *priv = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ GF_ASSERT (snap_vol);
+
+ origin_volname = gf_strdup (snap_vol->parent_volname);
+ if (!origin_volname) {
+ ret = -1;
+ goto out;
+ }
+
+ ret = glusterd_volinfo_find (origin_volname, &origin_vol);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to fetch "
+ "volinfo for volname %s", origin_volname);
+ goto out;
+ }
+
+ for (i = 1 ; i <= snap_vol->gsync_slaves->count; i++) {
+ ret = snprintf (key, sizeof (key), "slave%d", i);
+ if (ret < 0) {
+ goto out;
+ }
+
+ /* "origin_vol" is used here because geo-replication saves
+ * the session in the form of master_ip_slave.
+ * As we need the master volume to be same even after
+ * restore, we are passing the origin volume name.
+ *
+ * "snap_vol->gsync_slaves" contain the slave information
+ * when the snapshot was taken, hence we have to restore all
+ * those slaves information when we do snapshot restore.
+ */
+ ret = glusterd_get_geo_rep_session (key, origin_vol->volname,
+ snap_vol->gsync_slaves,
+ session, slave);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to get geo-rep session");
+ goto out;
+ }
+
+ GLUSTERD_GET_SNAP_GEO_REP_DIR(snapgeo_dir, snap_vol->snapshot,
+ priv);
+ ret = snprintf (src_path, sizeof (src_path),
+ "%s/%s", snapgeo_dir, session);
+ if (ret < 0)
+ goto out;
+
+ ret = snprintf (dest_path, sizeof (dest_path),
+ "%s/%s/%s", priv->workdir, GEOREP,
+ session);
+ if (ret < 0)
+ goto out;
+
+ ret = glusterd_copy_folder (src_path, dest_path);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Could not copy "
+ "%s to %s", src_path, dest_path);
+ goto out;
+ }
+ }
+out:
+ if (origin_volname)
+ GF_ASSERT (origin_volname);
+
+ return ret;
+}
+
+/* Snapd functions */
+int
+glusterd_is_snapd_enabled (glusterd_volinfo_t *volinfo)
+{
+ int ret = 0;
+ xlator_t *this = THIS;
+
+ ret = dict_get_str_boolean (volinfo->dict, "features.uss", -2);
+ if (ret == -2) {
+ gf_log (this->name, GF_LOG_DEBUG, "Key features.uss not "
+ "present in the dict for volume %s", volinfo->volname);
+ ret = 0;
+
+ } else if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to get 'features.uss'"
+ " from dict for volume %s", volinfo->volname);
+ }
+
+ return ret;
+}
+
+void
+glusterd_get_snapd_rundir (glusterd_volinfo_t *volinfo,
+ char *path, int path_len)
+{
+ char workdir[PATH_MAX] = {0,};
+ glusterd_conf_t *priv = THIS->private;
+
+ GLUSTERD_GET_VOLUME_DIR (workdir, volinfo, priv);
+
+ snprintf (path, path_len, "%s/run", workdir);
+}
+
+void
+glusterd_get_snapd_volfile (glusterd_volinfo_t *volinfo,
+ char *path, int path_len)
+{
+ char workdir[PATH_MAX] = {0,};
+ glusterd_conf_t *priv = THIS->private;
+
+ GLUSTERD_GET_VOLUME_DIR (workdir, volinfo, priv);
+
+ snprintf (path, path_len, "%s/%s-snapd.vol", workdir,
+ volinfo->volname);
+}
+
+void
+glusterd_get_snapd_pidfile (glusterd_volinfo_t *volinfo,
+ char *path, int path_len)
+{
+ char rundir[PATH_MAX] = {0,};
+
+ glusterd_get_snapd_rundir (volinfo, rundir, sizeof (rundir));
+
+ snprintf (path, path_len, "%s/%s-snapd.pid", rundir, volinfo->volname);
+}
+
+void
+glusterd_set_snapd_socket_filepath (glusterd_volinfo_t *volinfo,
+ char *path, int path_len)
+{
+ char sockfilepath[PATH_MAX] = {0,};
+ char rundir[PATH_MAX] = {0,};
+
+ glusterd_get_snapd_rundir (volinfo, rundir, sizeof (rundir));
+ snprintf (sockfilepath, sizeof (sockfilepath), "%s/run-%s",
+ rundir, uuid_utoa (MY_UUID));
+
+ glusterd_set_socket_filepath (sockfilepath, path, path_len);
+}
+
+gf_boolean_t
+glusterd_is_snapd_running (glusterd_volinfo_t *volinfo)
+{
+ char pidfile[PATH_MAX] = {0,};
+ int pid = -1;
+ glusterd_conf_t *priv = THIS->private;
+
+ glusterd_get_snapd_pidfile (volinfo, pidfile,
+ sizeof (pidfile));
+
+ return gf_is_service_running (pidfile, &pid);
+}
+
+int
+glusterd_restart_snapds (glusterd_conf_t *priv)
+{
+ glusterd_volinfo_t *volinfo = NULL;
+ int ret = 0;
+ xlator_t *this = THIS;
+
+ list_for_each_entry (volinfo, &priv->volumes, vol_list) {
+ if (volinfo->status == GLUSTERD_STATUS_STARTED &&
+ glusterd_is_snapd_enabled (volinfo)) {
+ ret = glusterd_snapd_start (volinfo,
+ _gf_false);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Couldn't start snapd for "
+ "vol: %s", volinfo->volname);
+ goto out;
+ }
+ }
+ }
+out:
+ return ret;
+}
+
+gf_boolean_t
+glusterd_is_snapd_online (glusterd_volinfo_t *volinfo)
+{
+ return volinfo->snapd.online;
+}
+
+void
+glusterd_snapd_set_online_status (glusterd_volinfo_t *volinfo,
+ gf_boolean_t status)
+{
+ volinfo->snapd.online = status;
+}
+
+static inline void
+glusterd_snapd_set_rpc (glusterd_volinfo_t *volinfo, struct rpc_clnt *rpc)
+{
+ volinfo->snapd.rpc = rpc;
+}
+
+int32_t
+glusterd_snapd_connect (glusterd_volinfo_t *volinfo, char *socketpath)
+{
+ int ret = 0;
+ dict_t *options = NULL;
+ struct rpc_clnt *rpc = NULL;
+ glusterd_conf_t *priv = THIS->private;
+
+ rpc = glusterd_snapd_get_rpc (volinfo);
+
+ if (rpc == NULL) {
+ /* Setting frame-timeout to 10mins (600seconds).
+ * Unix domain sockets ensures that the connection is reliable.
+ * The default timeout of 30mins used for unreliable network
+ * connections is too long for unix domain socket connections.
+ */
+ ret = rpc_transport_unix_options_build (&options, socketpath,
+ 600);
+ if (ret)
+ goto out;
+
+ ret = dict_set_str(options,
+ "transport.socket.ignore-enoent", "on");
+ if (ret)
+ goto out;
+
+ glusterd_volinfo_ref (volinfo);
+
+ synclock_unlock (&priv->big_lock);
+ ret = glusterd_rpc_create (&rpc, options,
+ glusterd_snapd_rpc_notify,
+ volinfo);
+ synclock_lock (&priv->big_lock);
+ if (ret)
+ goto out;
+
+ (void) glusterd_snapd_set_rpc (volinfo, rpc);
+ }
+out:
+ return ret;
+}
+
+int32_t
+glusterd_snapd_disconnect (glusterd_volinfo_t *volinfo)
+{
+ struct rpc_clnt *rpc = NULL;
+ glusterd_conf_t *priv = THIS->private;
+
+ rpc = glusterd_snapd_get_rpc (volinfo);
+
+ (void) glusterd_snapd_set_rpc (volinfo, NULL);
+
+ if (rpc)
+ glusterd_rpc_clnt_unref (priv, rpc);
+
+ return 0;
+}
+
+int32_t
+glusterd_snapd_start (glusterd_volinfo_t *volinfo, gf_boolean_t wait)
+{
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_conf_t *priv = NULL;
+ runner_t runner = {0,};
+ char pidfile[PATH_MAX] = {0,};
+ char logfile[PATH_MAX] = {0,};
+ char logdir[PATH_MAX] = {0,};
+ char volfile[PATH_MAX] = {0,};
+ char glusterd_uuid[1024] = {0,};
+ char rundir[PATH_MAX] = {0,};
+ char sockfpath[PATH_MAX] = {0,};
+ char volfileid[256] = {0};
+ char *volfileserver = NULL;
+ char valgrind_logfile[PATH_MAX] = {0};
+ int snapd_port = 0;
+ char *volname = volinfo->volname;
+ char snapd_id[PATH_MAX] = {0,};
+ char msg[1024] = {0,};
+
+ this = THIS;
+ GF_ASSERT(this);
+
+ if (glusterd_is_snapd_running (volinfo)) {
+ ret = 0;
+ goto connect;
+ }
+
+ priv = this->private;
+
+ glusterd_get_snapd_rundir (volinfo, rundir, sizeof (rundir));
+ ret = mkdir (rundir, 0777);
+
+ if ((ret == -1) && (EEXIST != errno)) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to create rundir %s",
+ rundir);
+ goto out;
+ }
+
+ glusterd_get_snapd_pidfile (volinfo, pidfile, sizeof (pidfile));
+ glusterd_get_snapd_volfile (volinfo, volfile, sizeof (volfile));
+
+ ret = sys_access (volfile, F_OK);
+ if (ret) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "snapd Volfile %s is not present", volfile);
+
+ /* If glusterd is down on one of the nodes and during
+ * that time "USS is enabled" for the first time. After some
+ * time when the glusterd which was down comes back it tries
+ * to look for the snapd volfile and it does not find snapd
+ * volfile and because of this starting of snapd fails.
+ * Therefore, if volfile is not present then create a fresh
+ * volfile.
+ */
+ ret = glusterd_create_snapd_volfile (volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Couldn't create "
+ "snapd volfile for volume: %s",
+ volinfo->volname);
+ goto out;
+ }
+ }
+
+ snprintf (logdir, PATH_MAX, "%s/snaps/%s",
+ DEFAULT_LOG_FILE_DIRECTORY, volname);
+ ret = mkdir_p (logdir, 0755, _gf_true);
+ if ((ret == -1) && (EEXIST != errno)) {
+ gf_log (this->name, GF_LOG_ERROR, "Unable to create logdir %s",
+ logdir);
+ goto out;
+ }
+
+ snprintf (logfile, PATH_MAX, "%s/snapd.log", logdir);
+
+ snprintf (volfileid, sizeof (volfileid), "snapd/%s", volname);
+ glusterd_set_snapd_socket_filepath (volinfo, sockfpath,
+ sizeof (sockfpath));
+
+ if (dict_get_str (this->options, "transport.socket.bind-address",
+ &volfileserver) != 0) {
+ volfileserver = "localhost";
+ }
+
+ runinit (&runner);
+
+ if (priv->valgrind) {
+ snprintf (valgrind_logfile, PATH_MAX, "%s/valgrind-snapd.log",
+ logdir);
+
+ runner_add_args (&runner, "valgrind", "--leak-check=full",
+ "--trace-children=yes", "--track-origins=yes",
+ NULL);
+ runner_argprintf (&runner, "--log-file=%s", valgrind_logfile);
+ }
+
+ snprintf (snapd_id, sizeof (snapd_id), "snapd-%s", volname);
+ runner_add_args (&runner, SBIN_DIR"/glusterfsd",
+ "-s", volfileserver,
+ "--volfile-id", volfileid,
+ "-p", pidfile,
+ "-l", logfile,
+ "--brick-name", snapd_id,
+ "-S", sockfpath, NULL);
+
+ snapd_port = volinfo->snapd.port;
+ if (!snapd_port) {
+ snapd_port = pmap_registry_alloc (THIS);
+ if (!snapd_port) {
+ snprintf (msg, sizeof (msg), "Could not allocate port "
+ "for snapd service for volume %s", volname);
+
+ runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
+ ret = -1;
+ goto out;
+ }
+ }
+
+ runner_add_arg (&runner, "--brick-port");
+ runner_argprintf (&runner, "%d", snapd_port);
+ runner_add_arg (&runner, "--xlator-option");
+ runner_argprintf (&runner, "%s-server.listen-port=%d",
+ volname, snapd_port);
+
+ snprintf (msg, sizeof (msg),
+ "Starting the snapd service for volume %s", volname);
+ runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
+
+ if (!wait) {
+ ret = runner_run_nowait (&runner);
+ } else {
+ synclock_unlock (&priv->big_lock);
+ {
+ ret = runner_run (&runner);
+ }
+ synclock_lock (&priv->big_lock);
+ }
+
+ volinfo->snapd.port = snapd_port;
+
+connect:
+ if (ret == 0)
+ glusterd_snapd_connect (volinfo, sockfpath);
+
+out:
+ return ret;
+}
+
+int
+glusterd_snapd_stop (glusterd_volinfo_t *volinfo)
+{
+ char pidfile[PATH_MAX] = {0,};
+ char sockfpath[PATH_MAX] = {0,};
+ glusterd_conf_t *priv = THIS->private;
+ int ret = 0;
+
+ (void)glusterd_snapd_disconnect (volinfo);
+
+ if (!glusterd_is_snapd_running (volinfo))
+ goto out;
+
+ glusterd_get_snapd_pidfile (volinfo, pidfile, sizeof (pidfile));
+ ret = glusterd_service_stop ("snapd", pidfile, SIGTERM, _gf_true);
+
+ if (ret == 0) {
+ glusterd_set_snapd_socket_filepath (volinfo, sockfpath,
+ sizeof (sockfpath));
+ (void)glusterd_unlink_file (sockfpath);
+ }
+out:
+ return ret;
+}
+
+int
+glusterd_handle_snapd_option (glusterd_volinfo_t *volinfo)
+{
+ int ret = 0;
+ xlator_t *this = THIS;
+
+ if (volinfo->is_snap_volume)
+ return 0;
+
+ ret = glusterd_is_snapd_enabled (volinfo);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to read volume "
+ "options");
+ goto out;
+ }
+
+ if (ret) {
+ if (!glusterd_is_volume_started (volinfo)) {
+ if (glusterd_is_snapd_running (volinfo)) {
+ ret = glusterd_snapd_stop (volinfo);
+ if (ret)
+ gf_log (this->name, GF_LOG_ERROR,
+ "Couldn't stop snapd for "
+ "volume: %s",
+ volinfo->volname);
+ } else {
+ /* Since snapd is not running set ret to 0 */
+ ret = 0;
+ }
+ goto out;
+ }
+
+ ret = glusterd_create_snapd_volfile (volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Couldn't create "
+ "snapd volfile for volume: %s",
+ volinfo->volname);
+ goto out;
+ }
+
+ ret = glusterd_snapd_start (volinfo, _gf_false);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Couldn't start "
+ "snapd for volume: %s", volinfo->volname);
+ goto out;
+ }
+
+ } else if (glusterd_is_snapd_running (volinfo)) {
+ ret = glusterd_snapd_stop (volinfo);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Couldn't stop snapd for volume: %s",
+ volinfo->volname);
+ goto out;
+ }
+ volinfo->snapd.port = 0;
+ }
+
+out:
+ return ret;
+}
+
+int32_t
+glusterd_is_snap_soft_limit_reached (glusterd_volinfo_t *volinfo, dict_t *dict)
+{
+ int32_t ret = -1;
+ uint64_t opt_max_hard = GLUSTERD_SNAPS_MAX_HARD_LIMIT;
+ uint64_t opt_max_soft = GLUSTERD_SNAPS_DEF_SOFT_LIMIT_PERCENT;
+ uint64_t limit = 0;
+ int auto_delete = 0;
+ uint64_t effective_max_limit = 0;
+ xlator_t *this = NULL;
+ glusterd_conf_t *priv = NULL;
+
+ GF_ASSERT (volinfo);
+ GF_ASSERT (dict);
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ /* config values snap-max-hard-limit and snap-max-soft-limit are
+ * optional and hence we are not erroring out if values are not
+ * present
+ */
+ gd_get_snap_conf_values_if_present (priv->opts, &opt_max_hard,
+ &opt_max_soft);
+
+ /* "auto-delete" might not be set by user explicitly,
+ * in that case it's better to consider the default value.
+ * Hence not erroring out if Key is not found.
+ */
+ auto_delete = dict_get_str_boolean (priv->opts,
+ GLUSTERD_STORE_KEY_SNAP_AUTO_DELETE,
+ _gf_false);
+
+ if (volinfo->snap_max_hard_limit < opt_max_hard)
+ effective_max_limit = volinfo->snap_max_hard_limit;
+ else
+ effective_max_limit = opt_max_hard;
+
+ limit = (opt_max_soft * effective_max_limit)/100;
+
+ if (volinfo->snap_count >= limit && auto_delete != _gf_true) {
+ gf_log (this->name, GF_LOG_WARNING, "Soft-limit "
+ "(value = %"PRIu64") of volume %s is reached. "
+ "Snapshot creation is not possible once effective "
+ "hard-limit (value = %"PRIu64") is reached.",
+ limit, volinfo->volname, effective_max_limit);
+
+ ret = dict_set_int8 (dict, "soft-limit-reach",
+ _gf_true);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to "
+ "set soft limit exceed flag in "
+ "response dictionary");
+ }
+ goto out;
+ }
+ ret = 0;
+out:
+ return ret;
+}
+
+/* This function initializes the parameter sys_hard_limit,
+ * sys_soft_limit and auto_delete value to the value set
+ * in dictionary, If value is not present then it is
+ * initialized to default values. Hence this function does not
+ * return any values.
+ */
+void
+gd_get_snap_conf_values_if_present (dict_t *dict, uint64_t *sys_hard_limit,
+ uint64_t *sys_soft_limit)
+{
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+
+ GF_ASSERT (dict);
+
+ /* "snap-max-hard-limit" might not be set by user explicitly,
+ * in that case it's better to consider the default value.
+ * Hence not erroring out if Key is not found.
+ */
+ if (dict_get_uint64 (dict, GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT,
+ sys_hard_limit)) {
+ gf_log (this->name, GF_LOG_DEBUG, "%s is not present in"
+ "dictionary",
+ GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT);
+ }
+
+ /* "snap-max-soft-limit" might not be set by user explicitly,
+ * in that case it's better to consider the default value.
+ * Hence not erroring out if Key is not found.
+ */
+ if (dict_get_uint64 (dict, GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT,
+ sys_soft_limit)) {
+ gf_log (this->name, GF_LOG_DEBUG, "%s is not present in"
+ "dictionary",
+ GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT);
+ }
+}
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h
new file mode 100644
index 00000000000..a5d82af559d
--- /dev/null
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h
@@ -0,0 +1,200 @@
+/*
+ Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+#ifndef _GLUSTERD_SNAP_UTILS_H
+#define _GLUSTERD_SNAP_UTILS_H
+
+int32_t
+glusterd_snap_volinfo_find (char *volname, glusterd_snap_t *snap,
+ glusterd_volinfo_t **volinfo);
+
+int32_t
+glusterd_snap_volinfo_find_from_parent_volname (char *origin_volname,
+ glusterd_snap_t *snap,
+ glusterd_volinfo_t **volinfo);
+
+int
+glusterd_snap_volinfo_find_by_volume_id (uuid_t volume_id,
+ glusterd_volinfo_t **volinfo);
+
+int32_t
+glusterd_add_snapd_to_dict (glusterd_volinfo_t *volinfo,
+ dict_t *dict, int32_t count);
+
+int
+glusterd_compare_snap_time(struct list_head *, struct list_head *);
+
+int
+glusterd_compare_snap_vol_time(struct list_head *, struct list_head *);
+
+int32_t
+glusterd_snap_volinfo_restore (dict_t *dict, dict_t *rsp_dict,
+ glusterd_volinfo_t *new_volinfo,
+ glusterd_volinfo_t *snap_volinfo,
+ int32_t volcount);
+
+int32_t
+glusterd_missed_snapinfo_new (glusterd_missed_snap_info **missed_snapinfo);
+
+int32_t
+glusterd_missed_snap_op_new (glusterd_snap_op_t **snap_op);
+
+int32_t
+glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict,
+ glusterd_volinfo_t *snap_vol,
+ glusterd_brickinfo_t *brickinfo,
+ int32_t brick_number, int32_t op);
+
+int32_t
+glusterd_add_missed_snaps_to_export_dict (dict_t *peer_data);
+
+int32_t
+glusterd_import_friend_missed_snap_list (dict_t *peer_data);
+
+int
+gd_restore_snap_volume (dict_t *dict, dict_t *rsp_dict,
+ glusterd_volinfo_t *orig_vol,
+ glusterd_volinfo_t *snap_vol,
+ int32_t volcount);
+
+int32_t
+glusterd_mount_lvm_snapshot (glusterd_brickinfo_t *brickinfo,
+ char *brick_mount_path);
+
+int32_t
+glusterd_umount (const char *path);
+
+int32_t
+glusterd_add_snapshots_to_export_dict (dict_t *peer_data);
+
+int32_t
+glusterd_compare_friend_snapshots (dict_t *peer_data,
+ glusterd_peerinfo_t *peerinfo);
+
+int32_t
+glusterd_store_create_snap_dir (glusterd_snap_t *snap);
+
+int32_t
+glusterd_copy_file (const char *source, const char *destination);
+
+int32_t
+glusterd_copy_folder (const char *source, const char *destination);
+
+int32_t
+glusterd_get_geo_rep_session (char *slave_key, char *origin_volname,
+ dict_t *gsync_slaves_dict, char *session,
+ char *slave);
+
+int32_t
+glusterd_restore_geo_rep_files (glusterd_volinfo_t *snap_vol);
+
+int32_t
+glusterd_copy_quota_files (glusterd_volinfo_t *src_vol,
+ glusterd_volinfo_t *dest_vol);
+
+int
+glusterd_snap_use_rsp_dict (dict_t *aggr, dict_t *rsp_dict);
+
+int
+gd_add_vol_snap_details_to_dict (dict_t *dict, char *prefix,
+ glusterd_volinfo_t *volinfo);
+
+int
+gd_add_brick_snap_details_to_dict (dict_t *dict, char *prefix,
+ glusterd_brickinfo_t *brickinfo);
+
+int
+gd_import_new_brick_snap_details (dict_t *dict, char *prefix,
+ glusterd_brickinfo_t *brickinfo);
+
+int
+gd_import_volume_snap_details (dict_t *dict, glusterd_volinfo_t *volinfo,
+ char *prefix, char *volname);
+
+int32_t
+glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
+ char **op_errstr,
+ struct list_head *peers_list);
+
+int32_t
+glusterd_snap_quorum_check_for_create (dict_t *dict, gf_boolean_t snap_volume,
+ char **op_errstr,
+ struct list_head *peers_list);
+
+int32_t
+glusterd_snap_brick_create (glusterd_volinfo_t *snap_volinfo,
+ glusterd_brickinfo_t *brickinfo,
+ int32_t brick_count);
+
+int
+glusterd_snapshot_restore_cleanup (dict_t *rsp_dict,
+ glusterd_volinfo_t *volinfo,
+ glusterd_snap_t *snap);
+
+int
+glusterd_handle_snapd_option (glusterd_volinfo_t *volinfo);
+
+int32_t
+glusterd_snapd_disconnect (glusterd_volinfo_t *volinfo);
+
+void
+glusterd_get_snapd_dir (glusterd_volinfo_t *volinfo,
+ char *path, int path_len);
+
+void
+glusterd_get_snapd_rundir (glusterd_volinfo_t *volinfo,
+ char *path, int path_len);
+
+void
+glusterd_get_snapd_volfile (glusterd_volinfo_t *volinfo,
+ char *path, int path_len);
+
+void
+glusterd_get_snapd_pidfile (glusterd_volinfo_t *volinfo,
+ char *path, int path_len);
+
+void
+glusterd_set_snapd_socket_filepath (glusterd_volinfo_t *volinfo,
+ char *path, int path_len);
+
+gf_boolean_t
+glusterd_is_snapd_running (glusterd_volinfo_t *volinfo);
+
+int
+glusterd_snapd_stop (glusterd_volinfo_t *volinfo);
+
+int
+glusterd_snapd_start (glusterd_volinfo_t *volinfo, gf_boolean_t wait);
+
+int
+glusterd_is_snapd_enabled (glusterd_volinfo_t *volinfo);
+
+gf_boolean_t
+glusterd_is_snapd_online (glusterd_volinfo_t *volinfo);
+
+void
+glusterd_snapd_set_online_status (glusterd_volinfo_t *volinfo,
+ gf_boolean_t status);
+
+int
+glusterd_restart_snapds (glusterd_conf_t *priv);
+
+int32_t
+glusterd_check_and_set_config_limit (glusterd_conf_t *priv);
+
+int32_t
+glusterd_is_snap_soft_limit_reached (glusterd_volinfo_t *volinfo,
+ dict_t *dict);
+
+void
+gd_get_snap_conf_values_if_present (dict_t *opts, uint64_t *sys_hard_limit,
+ uint64_t *sys_soft_limit);
+
+#endif
+
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot.c b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
index f77beaf76d2..759f5c460f6 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
@@ -54,6 +54,7 @@
#include "glusterd-volgen.h"
#include "glusterd-mgmt.h"
#include "glusterd-syncop.h"
+#include "glusterd-snapshot-utils.h"
#include "glusterfs3.h"
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
index 1f31d196af2..bde97ceadc9 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.c
+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
@@ -37,6 +37,7 @@
#include "glusterd-hooks.h"
#include "store.h"
#include "glusterd-store.h"
+#include "glusterd-snapshot-utils.h"
#include "rpc-clnt.h"
#include "common-utils.h"
diff --git a/xlators/mgmt/glusterd/src/glusterd-syncop.c b/xlators/mgmt/glusterd/src/glusterd-syncop.c
index a910406f158..42a8cdcb685 100644
--- a/xlators/mgmt/glusterd/src/glusterd-syncop.c
+++ b/xlators/mgmt/glusterd/src/glusterd-syncop.c
@@ -19,6 +19,7 @@
#include "glusterd-op-sm.h"
#include "glusterd-utils.h"
#include "glusterd-locks.h"
+#include "glusterd-snapshot-utils.h"
extern glusterd_op_info_t opinfo;
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 06ac43aaf4b..a7c7bd9cb88 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -52,6 +52,7 @@
#include "glusterd-locks.h"
#include "glusterd-messages.h"
#include "glusterd-volgen.h"
+#include "glusterd-snapshot-utils.h"
#include "xdr-generic.h"
#include <sys/resource.h>
@@ -648,223 +649,6 @@ gd_vol_is_geo_rep_active (glusterd_volinfo_t *volinfo)
return active;
}
-/*
- * glusterd_snap_geo_rep_restore:
- * This function restores the atime and mtime of marker.tstamp
- * if present from snapped marker.tstamp file.
- */
-static int
-glusterd_snap_geo_rep_restore (glusterd_volinfo_t *snap_volinfo,
- glusterd_volinfo_t *new_volinfo)
-{
- char vol_tstamp_file[PATH_MAX] = {0,};
- char snap_tstamp_file[PATH_MAX] = {0,};
- glusterd_conf_t *priv = NULL;
- xlator_t *this = NULL;
- int geo_rep_indexing_on = 0;
- int ret = 0;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (snap_volinfo);
- GF_ASSERT (new_volinfo);
-
- priv = this->private;
- GF_ASSERT (priv);
-
- /* Check if geo-rep indexing is enabled, if yes, we need restore
- * back the mtime of 'marker.tstamp' file.
- */
- geo_rep_indexing_on = glusterd_volinfo_get_boolean (new_volinfo,
- VKEY_MARKER_XTIME);
- if (geo_rep_indexing_on == -1) {
- gf_log (this->name, GF_LOG_DEBUG, "Failed"
- " to check whether geo-rep-indexing enabled or not");
- ret = 0;
- goto out;
- }
-
- if (geo_rep_indexing_on == 1) {
- GLUSTERD_GET_VOLUME_DIR (vol_tstamp_file, new_volinfo, priv);
- strncat (vol_tstamp_file, "/marker.tstamp",
- PATH_MAX - strlen(vol_tstamp_file) - 1);
- GLUSTERD_GET_VOLUME_DIR (snap_tstamp_file, snap_volinfo, priv);
- strncat (snap_tstamp_file, "/marker.tstamp",
- PATH_MAX - strlen(snap_tstamp_file) - 1);
- ret = gf_set_timestamp (snap_tstamp_file, vol_tstamp_file);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set atime and mtime of %s as of %s",
- vol_tstamp_file, snap_tstamp_file);
- goto out;
- }
- }
-
-out:
- return ret;
-}
-
-/* This function will copy snap volinfo to the new
- * passed volinfo and regenerate backend store files
- * for the restored snap.
- *
- * @param new_volinfo new volinfo
- * @param snap_volinfo volinfo of snap volume
- *
- * @return 0 on success and -1 on failure
- *
- * TODO: Duplicate all members of volinfo, e.g. geo-rep sync slaves
- */
-int32_t
-glusterd_snap_volinfo_restore (dict_t *dict, dict_t *rsp_dict,
- glusterd_volinfo_t *new_volinfo,
- glusterd_volinfo_t *snap_volinfo,
- int32_t volcount)
-{
- char *value = NULL;
- char key[PATH_MAX] = "";
- int32_t brick_count = -1;
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_brickinfo_t *brickinfo = NULL;
- glusterd_brickinfo_t *new_brickinfo = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (dict);
- GF_ASSERT (rsp_dict);
-
- GF_VALIDATE_OR_GOTO (this->name, new_volinfo, out);
- GF_VALIDATE_OR_GOTO (this->name, snap_volinfo, out);
-
- brick_count = 0;
- list_for_each_entry (brickinfo, &snap_volinfo->bricks, brick_list) {
- brick_count++;
- ret = glusterd_brickinfo_new (&new_brickinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to create "
- "new brickinfo");
- goto out;
- }
-
- /* Duplicate brickinfo */
- ret = glusterd_brickinfo_dup (brickinfo, new_brickinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to dup "
- "brickinfo");
- goto out;
- }
-
- /* Fetch values if present in dict These values won't
- * be present in case of a missed restore. In that case
- * it's fine to use the local node's value
- */
- snprintf (key, sizeof (key), "snap%d.brick%d.path",
- volcount, brick_count);
- ret = dict_get_str (dict, key, &value);
- if (!ret)
- strncpy (new_brickinfo->path, value,
- sizeof(new_brickinfo->path));
-
- snprintf (key, sizeof (key), "snap%d.brick%d.snap_status",
- volcount, brick_count);
- ret = dict_get_int32 (dict, key, &new_brickinfo->snap_status);
-
- snprintf (key, sizeof (key), "snap%d.brick%d.device_path",
- volcount, brick_count);
- ret = dict_get_str (dict, key, &value);
- if (!ret)
- strncpy (new_brickinfo->device_path, value,
- sizeof(new_brickinfo->device_path));
-
- snprintf (key, sizeof (key), "snap%d.brick%d.fs_type",
- volcount, brick_count);
- ret = dict_get_str (dict, key, &value);
- if (!ret)
- strncpy (new_brickinfo->fstype, value,
- sizeof(new_brickinfo->fstype));
-
- snprintf (key, sizeof (key), "snap%d.brick%d.mnt_opts",
- volcount, brick_count);
- ret = dict_get_str (dict, key, &value);
- if (!ret)
- strncpy (new_brickinfo->mnt_opts, value,
- sizeof(new_brickinfo->mnt_opts));
-
- /* If the brick is not of this peer, or snapshot is missed *
- * for the brick do not replace the xattr for it */
- if ((!uuid_compare (brickinfo->uuid, MY_UUID)) &&
- (brickinfo->snap_status != -1)) {
- /* We need to replace the volume id of all the bricks
- * to the volume id of the origin volume. new_volinfo
- * has the origin volume's volume id*/
- ret = sys_lsetxattr (new_brickinfo->path,
- GF_XATTR_VOL_ID_KEY,
- new_volinfo->volume_id,
- sizeof (new_volinfo->volume_id),
- XATTR_REPLACE);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to "
- "set extended attribute %s on %s. "
- "Reason: %s, snap: %s",
- GF_XATTR_VOL_ID_KEY,
- new_brickinfo->path, strerror (errno),
- new_volinfo->volname);
- goto out;
- }
- }
-
- /* If a snapshot is pending for this brick then
- * restore should also be pending
- */
- if (brickinfo->snap_status == -1) {
- /* Adding missed delete to the dict */
- ret = glusterd_add_missed_snaps_to_dict
- (rsp_dict,
- snap_volinfo,
- brickinfo,
- brick_count,
- GF_SNAP_OPTION_TYPE_RESTORE);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to add missed snapshot info "
- "for %s:%s in the rsp_dict",
- brickinfo->hostname,
- brickinfo->path);
- goto out;
- }
- }
-
- list_add_tail (&new_brickinfo->brick_list,
- &new_volinfo->bricks);
- /* ownership of new_brickinfo is passed to new_volinfo */
- new_brickinfo = NULL;
- }
-
- /* Regenerate all volfiles */
- ret = glusterd_create_volfiles_and_notify_services (new_volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to regenerate volfiles");
- goto out;
- }
-
- /* Restore geo-rep marker.tstamp's timestamp */
- ret = glusterd_snap_geo_rep_restore (snap_volinfo, new_volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Geo-rep: marker.tstamp's timestamp restoration failed");
- goto out;
- }
-
-out:
- if (ret && (NULL != new_brickinfo)) {
- (void) glusterd_brickinfo_delete (new_brickinfo);
- }
-
- return ret;
-}
-
void
glusterd_auth_cleanup (glusterd_volinfo_t *volinfo) {
@@ -1530,42 +1314,6 @@ glusterd_volinfo_find_by_volume_id (uuid_t volume_id, glusterd_volinfo_t **volin
return ret;
}
-int
-glusterd_snap_volinfo_find_by_volume_id (uuid_t volume_id,
- glusterd_volinfo_t **volinfo)
-{
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_volinfo_t *voliter = NULL;
- glusterd_snap_t *snap = NULL;
- glusterd_conf_t *priv = NULL;
-
- this = THIS;
- priv = this->private;
- GF_ASSERT (priv);
- GF_ASSERT (volinfo);
-
- if (uuid_is_null(volume_id)) {
- gf_log (this->name, GF_LOG_WARNING, "Volume UUID is NULL");
- goto out;
- }
-
- list_for_each_entry (snap, &priv->snapshots, snap_list) {
- list_for_each_entry (voliter, &snap->volumes, vol_list) {
- if (uuid_compare (volume_id, voliter->volume_id))
- continue;
- *volinfo = voliter;
- ret = 0;
- goto out;
- }
- }
-
- gf_log (this->name, GF_LOG_WARNING, "Snap volume not found");
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
int32_t
glusterd_volinfo_find (char *volname, glusterd_volinfo_t **volinfo)
{
@@ -1596,68 +1344,6 @@ glusterd_volinfo_find (char *volname, glusterd_volinfo_t **volinfo)
}
int32_t
-glusterd_snap_volinfo_find (char *snap_volname, glusterd_snap_t *snap,
- glusterd_volinfo_t **volinfo)
-{
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_volinfo_t *snap_vol = NULL;
- glusterd_conf_t *priv = NULL;
-
- this = THIS;
- priv = this->private;
- GF_ASSERT (priv);
- GF_ASSERT (snap);
- GF_ASSERT (snap_volname);
-
- list_for_each_entry (snap_vol, &snap->volumes, vol_list) {
- if (!strcmp (snap_vol->volname, snap_volname)) {
- ret = 0;
- *volinfo = snap_vol;
- goto out;
- }
- }
-
- gf_log (this->name, GF_LOG_WARNING, "Snap volume %s not found",
- snap_volname);
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int32_t
-glusterd_snap_volinfo_find_from_parent_volname (char *origin_volname,
- glusterd_snap_t *snap,
- glusterd_volinfo_t **volinfo)
-{
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_volinfo_t *snap_vol = NULL;
- glusterd_conf_t *priv = NULL;
-
- this = THIS;
- priv = this->private;
- GF_ASSERT (priv);
- GF_ASSERT (snap);
- GF_ASSERT (origin_volname);
-
- list_for_each_entry (snap_vol, &snap->volumes, vol_list) {
- if (!strcmp (snap_vol->parent_volname, origin_volname)) {
- ret = 0;
- *volinfo = snap_vol;
- goto out;
- }
- }
-
- gf_log (this->name, GF_LOG_DEBUG, "Snap volume not found(snap: %s, "
- "origin-volume: %s", snap->snapname, origin_volname);
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int32_t
glusterd_service_stop (const char *service, char *pidfile, int sig,
gf_boolean_t force_kill)
{
@@ -2368,154 +2054,6 @@ out:
return ret;
}
-/* Exports a bricks snapshot details only if required
- *
- * The details will be exported only if the cluster op-version is greather than
- * 4, ie. snapshot is supported in the cluster
- */
-int
-gd_add_brick_snap_details_to_dict (dict_t *dict, char *prefix,
- glusterd_brickinfo_t *brickinfo)
-{
- int ret = -1;
- xlator_t *this = NULL;
- glusterd_conf_t *conf = NULL;
- char key[256] = {0,};
-
- this = THIS;
- GF_ASSERT (this != NULL);
- conf = this->private;
- GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
-
- GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (brickinfo != NULL), out);
-
- if (conf->op_version < GD_OP_VERSION_3_6_0) {
- ret = 0;
- goto out;
- }
-
- snprintf (key, sizeof (key), "%s.snap_status", prefix);
- ret = dict_set_int32 (dict, key, brickinfo->snap_status);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to set snap_status for %s:%s",
- brickinfo->hostname, brickinfo->path);
- goto out;
- }
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.device_path", prefix);
- ret = dict_set_str (dict, key, brickinfo->device_path);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to set snap_device for %s:%s",
- brickinfo->hostname, brickinfo->path);
- goto out;
- }
-
- snprintf (key, sizeof (key), "%s.fs_type", prefix);
- ret = dict_set_str (dict, key, brickinfo->fstype);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to set fstype for %s:%s",
- brickinfo->hostname, brickinfo->path);
- goto out;
- }
-
- snprintf (key, sizeof (key), "%s.mnt_opts", prefix);
- ret = dict_set_str (dict, key, brickinfo->mnt_opts);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to set mnt_opts for %s:%s",
- brickinfo->hostname, brickinfo->path);
- goto out;
- }
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.mount_dir", prefix);
- ret = dict_set_str (dict, key, brickinfo->mount_dir);
- if (ret)
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to set mount_dir for %s:%s",
- brickinfo->hostname, brickinfo->path);
-
-out:
- return ret;
-}
-
-/* Exports a volumes snapshot details only if required.
- *
- * The snapshot details will only be exported if the cluster op-version is
- * greater than 4, ie. snapshot is supported in the cluster
- */
-int
-gd_add_vol_snap_details_to_dict (dict_t *dict, char *prefix,
- glusterd_volinfo_t *volinfo)
-{
- int ret = -1;
- xlator_t *this = NULL;
- glusterd_conf_t *conf = NULL;
- char key[256] = {0,};
-
- this = THIS;
- GF_ASSERT (this != NULL);
- conf = this->private;
- GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
-
- GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (volinfo != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
-
- if (conf->op_version < GD_OP_VERSION_3_6_0) {
- ret =0;
- goto out;
- }
-
- snprintf (key, sizeof (key), "%s.restored_from_snap", prefix);
- ret = dict_set_dynstr_with_alloc
- (dict, key,
- uuid_utoa (volinfo->restored_from_snap));
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to set %s for volume"
- "%s", key, volinfo->volname);
- goto out;
- }
-
- if (strlen (volinfo->parent_volname) > 0) {
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.parent_volname", prefix);
- ret = dict_set_dynstr_with_alloc (dict, key,
- volinfo->parent_volname);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to set %s "
- "for volume %s", key, volinfo->volname);
- goto out;
- }
- }
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.is_snap_volume", prefix);
- ret = dict_set_uint32 (dict, key, volinfo->is_snap_volume);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to set %s for volume"
- "%s", key, volinfo->volname);
- goto out;
- }
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.snap-max-hard-limit", prefix);
- ret = dict_set_uint64 (dict, key, volinfo->snap_max_hard_limit);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to set %s for volume"
- "%s", key, volinfo->volname);
- }
-
-out:
- return ret;
-}
-
/* The prefix represents the type of volume to be added.
* It will be "volume" for normal volumes, and snap# like
* snap1, snap2, for snapshot volumes
@@ -2933,241 +2471,6 @@ out:
}
int32_t
-glusterd_add_missed_snaps_to_export_dict (dict_t *peer_data)
-{
- char name_buf[PATH_MAX] = "";
- char value[PATH_MAX] = "";
- int32_t missed_snap_count = 0;
- int32_t ret = -1;
- glusterd_conf_t *priv = NULL;
- glusterd_missed_snap_info *missed_snapinfo = NULL;
- glusterd_snap_op_t *snap_opinfo = NULL;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (peer_data);
-
- priv = this->private;
- GF_ASSERT (priv);
-
- /* Add the missed_entries in the dict */
- list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
- missed_snaps) {
- list_for_each_entry (snap_opinfo,
- &missed_snapinfo->snap_ops,
- snap_ops_list) {
- snprintf (name_buf, sizeof(name_buf),
- "missed_snaps_%d", missed_snap_count);
- snprintf (value, sizeof(value), "%s:%s=%s:%d:%s:%d:%d",
- missed_snapinfo->node_uuid,
- missed_snapinfo->snap_uuid,
- snap_opinfo->snap_vol_id,
- snap_opinfo->brick_num,
- snap_opinfo->brick_path,
- snap_opinfo->op,
- snap_opinfo->status);
-
- ret = dict_set_dynstr_with_alloc (peer_data, name_buf,
- value);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set %s",
- name_buf);
- goto out;
- }
- missed_snap_count++;
- }
- }
-
- ret = dict_set_int32 (peer_data, "missed_snap_count",
- missed_snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set missed_snap_count");
- goto out;
- }
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int32_t
-glusterd_add_snap_to_dict (glusterd_snap_t *snap, dict_t *peer_data,
- int32_t snap_count)
-{
- char buf[NAME_MAX] = "";
- char prefix[NAME_MAX] = "";
- int32_t ret = -1;
- int32_t volcount = 0;
- glusterd_volinfo_t *volinfo = NULL;
- glusterd_brickinfo_t *brickinfo = NULL;
- gf_boolean_t host_bricks = _gf_false;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (snap);
- GF_ASSERT (peer_data);
-
- snprintf (prefix, sizeof(prefix), "snap%d", snap_count);
-
- list_for_each_entry (volinfo, &snap->volumes, vol_list) {
- volcount++;
- ret = glusterd_add_volume_to_dict (volinfo, peer_data,
- volcount, prefix);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to add snap:%s volume:%s "
- "to peer_data dict for handshake",
- snap->snapname, volinfo->volname);
- goto out;
- }
-
- if (glusterd_is_volume_quota_enabled (volinfo)) {
-
- ret = glusterd_vol_add_quota_conf_to_dict (volinfo,
- peer_data,
- volcount,
- prefix);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to add quota conf for "
- "snap:%s volume:%s to peer_data "
- "dict for handshake", snap->snapname,
- volinfo->volname);
- goto out;
- }
- }
-
- list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
- if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
- host_bricks = _gf_true;
- break;
- }
- }
- }
-
- snprintf (buf, sizeof(buf), "%s.host_bricks", prefix);
- ret = dict_set_int8 (peer_data, buf, (int8_t) host_bricks);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set host_bricks for snap %s",
- snap->snapname);
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.volcount", prefix);
- ret = dict_set_int32 (peer_data, buf, volcount);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set volcount for snap %s",
- snap->snapname);
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.snapname", prefix);
- ret = dict_set_dynstr_with_alloc (peer_data, buf, snap->snapname);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set snapname for snap %s",
- snap->snapname);
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.snap_id", prefix);
- ret = dict_set_dynstr_with_alloc (peer_data, buf,
- uuid_utoa (snap->snap_id));
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set snap_id for snap %s",
- snap->snapname);
- goto out;
- }
-
- if (snap->description) {
- snprintf (buf, sizeof(buf), "%s.snapid", prefix);
- ret = dict_set_dynstr_with_alloc (peer_data, buf,
- snap->description);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set description for snap %s",
- snap->snapname);
- goto out;
- }
- }
-
- snprintf (buf, sizeof(buf), "%s.time_stamp", prefix);
- ret = dict_set_int64 (peer_data, buf, (int64_t)snap->time_stamp);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set time_stamp for snap %s",
- snap->snapname);
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.snap_restored", prefix);
- ret = dict_set_int8 (peer_data, buf, snap->snap_restored);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set snap_restored for snap %s",
- snap->snapname);
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.snap_status", prefix);
- ret = dict_set_int32 (peer_data, buf, snap->snap_status);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set snap_status for snap %s",
- snap->snapname);
- goto out;
- }
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int32_t
-glusterd_add_snapshots_to_export_dict (dict_t *peer_data)
-{
- int32_t snap_count = 0;
- int32_t ret = -1;
- glusterd_conf_t *priv = NULL;
- glusterd_snap_t *snap = NULL;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- priv = this->private;
- GF_ASSERT (priv);
- GF_ASSERT (peer_data);
-
- list_for_each_entry (snap, &priv->snapshots, snap_list) {
- snap_count++;
- ret = glusterd_add_snap_to_dict (snap, peer_data, snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to add snap(%s) to the "
- " peer_data dict for handshake",
- snap->snapname);
- goto out;
- }
- }
-
- ret = dict_set_int32 (peer_data, "snap_count", snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to set snap_count");
- goto out;
- }
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int32_t
glusterd_add_volumes_to_export_dict (dict_t **peer_data)
{
int32_t ret = -1;
@@ -3781,82 +3084,6 @@ out:
return ret;
}
-/* Imports the snapshot details of a brick if required and available
- *
- * Snapshot details will be imported only if the cluster op-verison is >= 4
- */
-int
-gd_import_new_brick_snap_details (dict_t *dict, char *prefix,
- glusterd_brickinfo_t *brickinfo)
-{
- int ret = -1;
- xlator_t *this = NULL;
- glusterd_conf_t *conf = NULL;
- char key[512] = {0,};
- char *snap_device = NULL;
- char *fs_type = NULL;
- char *mnt_opts = NULL;
- char *mount_dir = NULL;
-
- this = THIS;
- GF_ASSERT (this != NULL);
- conf = this->private;
- GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
-
- GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (brickinfo != NULL), out);
-
- if (conf->op_version < GD_OP_VERSION_3_6_0) {
- ret = 0;
- goto out;
- }
-
- snprintf (key, sizeof (key), "%s.snap_status", prefix);
- ret = dict_get_int32 (dict, key, &brickinfo->snap_status);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
- goto out;
- }
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.device_path", prefix);
- ret = dict_get_str (dict, key, &snap_device);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
- goto out;
- }
- strcpy (brickinfo->device_path, snap_device);
-
- snprintf (key, sizeof (key), "%s.fs_type", prefix);
- ret = dict_get_str (dict, key, &fs_type);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
- goto out;
- }
- strcpy (brickinfo->fstype, fs_type);
-
- snprintf (key, sizeof (key), "%s.mnt_opts", prefix);
- ret = dict_get_str (dict, key, &mnt_opts);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
- goto out;
- }
- strcpy (brickinfo->mnt_opts, mnt_opts);
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.mount_dir", prefix);
- ret = dict_get_str (dict, key, &mount_dir);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload", key);
- goto out;
- }
- strcpy (brickinfo->mount_dir, mount_dir);
-
-out:
- return ret;
-}
-
/* The prefix represents the type of volume to be added.
* It will be "volume" for normal volumes, and snap# like
* snap1, snap2, for snapshot volumes
@@ -3987,7 +3214,7 @@ out:
* It will be "volume" for normal volumes, and snap# like
* snap1, snap2, for snapshot volumes
*/
-static int
+int
glusterd_import_quota_conf (dict_t *peer_data, int vol_idx,
glusterd_volinfo_t *new_volinfo,
char *prefix)
@@ -4137,67 +3364,6 @@ out:
return ret;
}
-/*
- * Imports the snapshot details of a volume if required and available
- *
- * Snapshot details will be imported only if cluster.op_version is greater than
- * or equal to GD_OP_VERSION_3_6_0, the op-version from which volume snapshot is
- * supported.
- */
-int
-gd_import_volume_snap_details (dict_t *dict, glusterd_volinfo_t *volinfo,
- char *prefix, char *volname)
-{
- int ret = -1;
- xlator_t *this = NULL;
- glusterd_conf_t *conf = NULL;
- char key[256] = {0,};
- char *restored_snap = NULL;
-
- this = THIS;
- GF_ASSERT (this != NULL);
- conf = this->private;
- GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out);
-
- GF_VALIDATE_OR_GOTO (this->name, (dict != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (volinfo != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (prefix != NULL), out);
- GF_VALIDATE_OR_GOTO (this->name, (volname != NULL), out);
-
- if (conf->op_version < GD_OP_VERSION_3_6_0) {
- ret = 0;
- goto out;
- }
-
- snprintf (key, sizeof (key), "%s.is_snap_volume", prefix);
- ret = dict_get_uint32 (dict, key, &volinfo->is_snap_volume);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload "
- "for %s", key, volname);
- goto out;
- }
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.restored_from_snap", prefix);
- ret = dict_get_str (dict, key, &restored_snap);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload "
- "for %s", key, volname);
- goto out;
- }
-
- uuid_parse (restored_snap, volinfo->restored_from_snap);
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.snap-max-hard-limit", prefix);
- ret = dict_get_uint64 (dict, key,
- &volinfo->snap_max_hard_limit);
- if (ret)
- gf_log (this->name, GF_LOG_ERROR, "%s missing in payload "
- "for %s", key, volname);
-out:
- return ret;
-}
/* The prefix represents the type of volume to be added.
* It will be "volume" for normal volumes, and snap# like
* snap1, snap2, for snapshot volumes
@@ -4934,831 +4100,6 @@ out:
}
int32_t
-glusterd_perform_missed_op (glusterd_snap_t *snap, int32_t op)
-{
- dict_t *dict = NULL;
- int32_t ret = -1;
- glusterd_conf_t *priv = NULL;
- glusterd_volinfo_t *snap_volinfo = NULL;
- glusterd_volinfo_t *volinfo = NULL;
- glusterd_volinfo_t *tmp = NULL;
- xlator_t *this = NULL;
- uuid_t null_uuid = {0};
-
- this = THIS;
- GF_ASSERT (this);
-
- priv = this->private;
- GF_ASSERT (priv);
- GF_ASSERT (snap);
-
- dict = dict_new();
- if (!dict) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to create dict");
- ret = -1;
- goto out;
- }
-
- switch (op) {
- case GF_SNAP_OPTION_TYPE_DELETE:
- ret = glusterd_snap_remove (dict, snap, _gf_true, _gf_false);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to remove snap");
- goto out;
- }
-
- break;
- case GF_SNAP_OPTION_TYPE_RESTORE:
- list_for_each_entry_safe (snap_volinfo, tmp,
- &snap->volumes, vol_list) {
- ret = glusterd_volinfo_find
- (snap_volinfo->parent_volname,
- &volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Could not get volinfo of %s",
- snap_volinfo->parent_volname);
- goto out;
- }
-
- volinfo->version--;
- uuid_copy (volinfo->restored_from_snap, null_uuid);
-
- /* gd_restore_snap_volume() uses the dict and volcount
- * to fetch snap brick info from other nodes, which were
- * collected during prevalidation. As this is an ad-hoc
- * op and only local node's data matter, hence sending
- * volcount as 0 and re-using the same dict because we
- * need not record any missed creates in the rsp_dict.
- */
- ret = gd_restore_snap_volume (dict, dict, volinfo,
- snap_volinfo, 0);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to restore snap for %s",
- snap->snapname);
- volinfo->version++;
- goto out;
- }
-
- ret = glusterd_snapshot_restore_cleanup (dict, volinfo,
- snap);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to perform snapshot restore "
- "cleanup for %s volume",
- snap_volinfo->parent_volname);
- goto out;
- }
- }
-
- break;
- default:
- /* The entry must be a create, delete, or
- * restore entry
- */
- gf_log (this->name, GF_LOG_ERROR, "Invalid missed snap entry");
- ret = -1;
- goto out;
- }
-
-out:
- dict_unref (dict);
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-/* Perform missed deletes and restores on this node */
-int32_t
-glusterd_perform_missed_snap_ops ()
-{
- int32_t ret = -1;
- int32_t op_status = -1;
- glusterd_conf_t *priv = NULL;
- glusterd_missed_snap_info *missed_snapinfo = NULL;
- glusterd_snap_op_t *snap_opinfo = NULL;
- glusterd_snap_t *snap = NULL;
- uuid_t snap_uuid = {0,};
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
-
- priv = this->private;
- GF_ASSERT (priv);
-
- list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
- missed_snaps) {
- /* If the pending snap_op is not for this node then continue */
- if (strcmp (missed_snapinfo->node_uuid, uuid_utoa (MY_UUID)))
- continue;
-
- /* Find the snap id */
- uuid_parse (missed_snapinfo->snap_uuid, snap_uuid);
- snap = NULL;
- snap = glusterd_find_snap_by_id (snap_uuid);
- if (!snap) {
- /* If the snap is not found, then a delete or a
- * restore can't be pending on that snap_uuid.
- */
- gf_log (this->name, GF_LOG_DEBUG,
- "Not a pending delete or restore op");
- continue;
- }
-
- op_status = GD_MISSED_SNAP_PENDING;
- list_for_each_entry (snap_opinfo, &missed_snapinfo->snap_ops,
- snap_ops_list) {
- /* If the snap_op is create or its status is
- * GD_MISSED_SNAP_DONE then continue
- */
- if ((snap_opinfo->status == GD_MISSED_SNAP_DONE) ||
- (snap_opinfo->op == GF_SNAP_OPTION_TYPE_CREATE))
- continue;
-
- /* Perform the actual op for the first time for
- * this snap, and mark the snap_status as
- * GD_MISSED_SNAP_DONE. For other entries for the same
- * snap, just mark the entry as done.
- */
- if (op_status == GD_MISSED_SNAP_PENDING) {
- ret = glusterd_perform_missed_op
- (snap,
- snap_opinfo->op);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to perform missed snap op");
- goto out;
- }
- op_status = GD_MISSED_SNAP_DONE;
- }
-
- snap_opinfo->status = GD_MISSED_SNAP_DONE;
- }
- }
-
- ret = 0;
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-/* Import friend volumes missed_snap_list and update *
- * missed_snap_list if need be */
-int32_t
-glusterd_import_friend_missed_snap_list (dict_t *peer_data)
-{
- int32_t missed_snap_count = -1;
- int32_t ret = -1;
- glusterd_conf_t *priv = NULL;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (peer_data);
-
- priv = this->private;
- GF_ASSERT (priv);
-
- /* Add the friends missed_snaps entries to the in-memory list */
- ret = dict_get_int32 (peer_data, "missed_snap_count",
- &missed_snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_INFO,
- "No missed snaps");
- ret = 0;
- goto out;
- }
-
- ret = glusterd_add_missed_snaps_to_list (peer_data,
- missed_snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to add missed snaps to list");
- goto out;
- }
-
- ret = glusterd_perform_missed_snap_ops ();
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to perform snap operations");
- /* Not going to out at this point coz some *
- * missed ops might have been performed. We *
- * need to persist the current list *
- */
- }
-
- ret = glusterd_store_update_missed_snaps ();
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to update missed_snaps_list");
- goto out;
- }
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-/* Check for the peer_snap_name in the list of existing snapshots.
- * If a snap exists with the same name and a different snap_id, then
- * there is a conflict. Set conflict as _gf_true, and snap to the
- * conflicting snap object. If a snap exists with the same name, and the
- * same snap_id, then there is no conflict. Set conflict as _gf_false
- * and snap to the existing snap object. If no snap exists with the
- * peer_snap_name, then there is no conflict. Set conflict as _gf_false
- * and snap to NULL.
- */
-void
-glusterd_is_peer_snap_conflicting (char *peer_snap_name, char *peer_snap_id,
- gf_boolean_t *conflict,
- glusterd_snap_t **snap, char *hostname)
-{
- uuid_t peer_snap_uuid = {0,};
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (peer_snap_name);
- GF_ASSERT (peer_snap_id);
- GF_ASSERT (conflict);
- GF_ASSERT (snap);
- GF_ASSERT (hostname);
-
- *snap = glusterd_find_snap_by_name (peer_snap_name);
- if (*snap) {
- uuid_parse (peer_snap_id, peer_snap_uuid);
- if (!uuid_compare (peer_snap_uuid, (*snap)->snap_id)) {
- /* Current node contains the same snap having
- * the same snapname and snap_id
- */
- gf_log (this->name, GF_LOG_DEBUG,
- "Snapshot %s from peer %s present in "
- "localhost", peer_snap_name, hostname);
- *conflict = _gf_false;
- } else {
- /* Current node contains the same snap having
- * the same snapname but different snap_id
- */
- gf_log (this->name, GF_LOG_DEBUG,
- "Snapshot %s from peer %s conflicts with "
- "snapshot in localhost", peer_snap_name,
- hostname);
- *conflict = _gf_true;
- }
- } else {
- /* Peer contains snapshots missing on the current node */
- gf_log (this->name, GF_LOG_INFO,
- "Snapshot %s from peer %s missing on localhost",
- peer_snap_name, hostname);
- *conflict = _gf_false;
- }
-}
-
-/* Check if the local node is hosting any bricks for the given snapshot */
-gf_boolean_t
-glusterd_are_snap_bricks_local (glusterd_snap_t *snap)
-{
- gf_boolean_t is_local = _gf_false;
- glusterd_volinfo_t *volinfo = NULL;
- glusterd_brickinfo_t *brickinfo = NULL;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (snap);
-
- list_for_each_entry (volinfo, &snap->volumes, vol_list) {
- list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
- if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
- is_local = _gf_true;
- goto out;
- }
- }
- }
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", is_local);
- return is_local;
-}
-
-/* Check if the peer has missed any snap delete
- * or restore for the given snap_id
- */
-gf_boolean_t
-glusterd_peer_has_missed_snap_delete (glusterd_peerinfo_t *peerinfo,
- char *peer_snap_id)
-{
- char *peer_uuid = NULL;
- gf_boolean_t missed_delete = _gf_false;
- glusterd_conf_t *priv = NULL;
- glusterd_missed_snap_info *missed_snapinfo = NULL;
- glusterd_snap_op_t *snap_opinfo = NULL;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- priv = this->private;
- GF_ASSERT (priv);
- GF_ASSERT (peerinfo);
- GF_ASSERT (peer_snap_id);
-
- peer_uuid = uuid_utoa (peerinfo->uuid);
-
- list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
- missed_snaps) {
- /* Look for missed snap for the same peer, and
- * the same snap_id
- */
- if ((!strcmp (peer_uuid, missed_snapinfo->node_uuid)) &&
- (!strcmp (peer_snap_id, missed_snapinfo->snap_uuid))) {
- /* Check if the missed snap's op is delete and the
- * status is pending
- */
- list_for_each_entry (snap_opinfo,
- &missed_snapinfo->snap_ops,
- snap_ops_list) {
- if (((snap_opinfo->op ==
- GF_SNAP_OPTION_TYPE_DELETE) ||
- (snap_opinfo->op ==
- GF_SNAP_OPTION_TYPE_RESTORE)) &&
- (snap_opinfo->status ==
- GD_MISSED_SNAP_PENDING)) {
- missed_delete = _gf_true;
- goto out;
- }
- }
- }
- }
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", missed_delete);
- return missed_delete;
-}
-
-/* Genrate and store snap volfiles for imported snap object */
-int32_t
-glusterd_gen_snap_volfiles (glusterd_volinfo_t *snap_vol, char *peer_snap_name)
-{
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_volinfo_t *parent_volinfo = NULL;
- glusterd_brickinfo_t *brickinfo = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (snap_vol);
- GF_ASSERT (peer_snap_name);
-
- ret = glusterd_store_volinfo (snap_vol, GLUSTERD_VOLINFO_VER_AC_NONE);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to store snapshot "
- "volinfo (%s) for snap %s", snap_vol->volname,
- peer_snap_name);
- goto out;
- }
-
- ret = generate_brick_volfiles (snap_vol);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "generating the brick volfiles for the "
- "snap %s failed", peer_snap_name);
- goto out;
- }
-
- ret = generate_client_volfiles (snap_vol, GF_CLIENT_TRUSTED);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "generating the trusted client volfiles for "
- "the snap %s failed", peer_snap_name);
- goto out;
- }
-
- ret = generate_client_volfiles (snap_vol, GF_CLIENT_OTHER);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "generating the client volfiles for the "
- "snap %s failed", peer_snap_name);
- goto out;
- }
-
- ret = glusterd_volinfo_find (snap_vol->parent_volname,
- &parent_volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Parent volinfo "
- "not found for %s volume of snap %s",
- snap_vol->volname, peer_snap_name);
- goto out;
- }
-
- glusterd_list_add_snapvol (parent_volinfo, snap_vol);
-
- snap_vol->status = GLUSTERD_STATUS_STARTED;
-
- ret = glusterd_store_volinfo (snap_vol, GLUSTERD_VOLINFO_VER_AC_NONE);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to store snap volinfo");
- goto out;
- }
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-/* Import snapshot info from peer_data and add it to priv */
-int32_t
-glusterd_import_friend_snap (dict_t *peer_data, int32_t snap_count,
- char *peer_snap_name, char *peer_snap_id)
-{
- char buf[NAME_MAX] = "";
- char prefix[NAME_MAX] = "";
- dict_t *dict = NULL;
- glusterd_snap_t *snap = NULL;
- glusterd_volinfo_t *snap_vol = NULL;
- glusterd_conf_t *priv = NULL;
- int32_t ret = -1;
- int32_t volcount = -1;
- int32_t i = -1;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- priv = this->private;
- GF_ASSERT (priv);
- GF_ASSERT (peer_data);
- GF_ASSERT (peer_snap_name);
- GF_ASSERT (peer_snap_id);
-
- snprintf (prefix, sizeof(prefix), "snap%d", snap_count);
-
- snap = glusterd_new_snap_object ();
- if (!snap) {
- gf_log (this->name, GF_LOG_ERROR, "Could not create "
- "the snap object for snap %s", peer_snap_name);
- goto out;
- }
-
- dict = dict_new ();
- if (!dict) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to create dict");
- ret = -1;
- goto out;
- }
-
- strcpy (snap->snapname, peer_snap_name);
- uuid_parse (peer_snap_id, snap->snap_id);
-
- snprintf (buf, sizeof(buf), "%s.snapid", prefix);
- ret = dict_get_str (peer_data, buf, &snap->description);
-
- snprintf (buf, sizeof(buf), "%s.time_stamp", prefix);
- ret = dict_get_int64 (peer_data, buf, &snap->time_stamp);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to get time_stamp for snap %s",
- peer_snap_name);
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.snap_restored", prefix);
- ret = dict_get_int8 (peer_data, buf, (int8_t *) &snap->snap_restored);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to get snap_restored for snap %s",
- peer_snap_name);
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.snap_status", prefix);
- ret = dict_get_int32 (peer_data, buf, (int32_t *) &snap->snap_status);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to get snap_status for snap %s",
- peer_snap_name);
- goto out;
- }
-
- /* If the snap is scheduled to be decommissioned, then
- * don't accept the snap */
- if (snap->snap_status == GD_SNAP_STATUS_DECOMMISSION) {
- gf_log (this->name, GF_LOG_DEBUG,
- "The snap(%s) is scheduled to be decommissioned "
- "Not accepting the snap.", peer_snap_name);
- glusterd_snap_remove (dict, snap,
- _gf_true, _gf_true);
- ret = 0;
- goto out;
- }
-
- snprintf (buf, sizeof(buf), "%s.volcount", prefix);
- ret = dict_get_int32 (peer_data, buf, &volcount);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to get volcount for snap %s",
- peer_snap_name);
- goto out;
- }
-
- ret = glusterd_store_create_snap_dir (snap);
- if (ret) {
- gf_log (THIS->name, GF_LOG_ERROR, "Failed to create snap dir");
- goto out;
- }
-
- list_add_order (&snap->snap_list, &priv->snapshots,
- glusterd_compare_snap_time);
-
- for (i = 1; i <= volcount; i++) {
- ret = glusterd_import_volinfo (peer_data, i,
- &snap_vol, prefix);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to import snap volinfo for "
- "snap %s", peer_snap_name);
- goto out;
- }
-
- snap_vol->snapshot = snap;
-
- ret = glusterd_gen_snap_volfiles (snap_vol, peer_snap_name);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to generate snap vol files "
- "for snap %s", peer_snap_name);
- goto out;
- }
-
- ret = glusterd_import_quota_conf (peer_data, i,
- snap_vol, prefix);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to import quota conf "
- "for snap %s", peer_snap_name);
- goto out;
- }
-
- snap_vol = NULL;
- }
-
- ret = glusterd_store_snap (snap);
- if (ret) {
- gf_log (this->name, GF_LOG_WARNING, "Could not store snap"
- "object %s", peer_snap_name);
- goto out;
- }
-
-out:
- if (ret)
- glusterd_snap_remove (dict, snap,
- _gf_true, _gf_true);
-
- if (dict)
- dict_unref (dict);
-
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-/* During a peer-handshake, after the volumes have synced, and the list of
- * missed snapshots have synced, the node will perform the pending deletes
- * and restores on this list. At this point, the current snapshot list in
- * the node will be updated, and hence in case of conflicts arising during
- * snapshot handshake, the peer hosting the bricks will be given precedence
- * Likewise, if there will be a conflict, and both peers will be in the same
- * state, i.e either both would be hosting bricks or both would not be hosting
- * bricks, then a decision can't be taken and a peer-reject will happen.
- *
- * glusterd_compare_and_update_snap() implements the following algorithm to
- * perform the above task:
- * Step 1: Start.
- * Step 2: Check if the peer is missing a delete or restore on the said snap.
- * If yes, goto step 6.
- * Step 3: Check if there is a conflict between the peer's data and the
- * local snap. If no, goto step 5.
- * Step 4: As there is a conflict, check if both the peer and the local nodes
- * are hosting bricks. Based on the results perform the following:
- * Peer Hosts Bricks Local Node Hosts Bricks Action
- * Yes Yes Goto Step 7
- * No No Goto Step 7
- * Yes No Goto Step 8
- * No Yes Goto Step 6
- * Step 5: Check if the local node is missing the peer's data.
- * If yes, goto step 9.
- * Step 6: It's a no-op. Goto step 10
- * Step 7: Peer Reject. Goto step 10
- * Step 8: Delete local node's data.
- * Step 9: Accept Peer Data.
- * Step 10: Stop
- *
- */
-int32_t
-glusterd_compare_and_update_snap (dict_t *peer_data, int32_t snap_count,
- glusterd_peerinfo_t *peerinfo)
-{
- char buf[NAME_MAX] = "";
- char prefix[NAME_MAX] = "";
- char *peer_snap_name = NULL;
- char *peer_snap_id = NULL;
- dict_t *dict = NULL;
- glusterd_snap_t *snap = NULL;
- gf_boolean_t conflict = _gf_false;
- gf_boolean_t is_local = _gf_false;
- gf_boolean_t is_hosted = _gf_false;
- gf_boolean_t missed_delete = _gf_false;
- int32_t ret = -1;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (peer_data);
- GF_ASSERT (peerinfo);
-
- snprintf (prefix, sizeof(prefix), "snap%d", snap_count);
-
- /* Fetch the peer's snapname */
- snprintf (buf, sizeof(buf), "%s.snapname", prefix);
- ret = dict_get_str (peer_data, buf, &peer_snap_name);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to fetch snapname from peer: %s",
- peerinfo->hostname);
- goto out;
- }
-
- /* Fetch the peer's snap_id */
- snprintf (buf, sizeof(buf), "%s.snap_id", prefix);
- ret = dict_get_str (peer_data, buf, &peer_snap_id);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to fetch snap_id from peer: %s",
- peerinfo->hostname);
- goto out;
- }
-
- /* Check if the peer has missed a snap delete or restore
- * resulting in stale data for the snap in question
- */
- missed_delete = glusterd_peer_has_missed_snap_delete (peerinfo,
- peer_snap_id);
- if (missed_delete == _gf_true) {
- /* Peer has missed delete on the missing/conflicting snap_id */
- gf_log (this->name, GF_LOG_INFO, "Peer %s has missed a delete "
- "on snap %s", peerinfo->hostname, peer_snap_name);
- ret = 0;
- goto out;
- }
-
- /* Check if there is a conflict, and if the
- * peer data is already present
- */
- glusterd_is_peer_snap_conflicting (peer_snap_name, peer_snap_id,
- &conflict, &snap,
- peerinfo->hostname);
- if (conflict == _gf_false) {
- if (snap) {
- /* Peer has snap with the same snapname
- * and snap_id. No need to accept peer data
- */
- ret = 0;
- goto out;
- } else {
- /* Peer has snap with the same snapname
- * and snap_id, which local node doesn't have.
- */
- goto accept_peer_data;
- }
- }
-
- /* There is a conflict. Check if the current node is
- * hosting bricks for the conflicted snap.
- */
- is_local = glusterd_are_snap_bricks_local (snap);
-
- /* Check if the peer is hosting any bricks for the
- * conflicting snap
- */
- snprintf (buf, sizeof(buf), "%s.host_bricks", prefix);
- ret = dict_get_int8 (peer_data, buf, (int8_t *) &is_hosted);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to fetch host_bricks from peer: %s "
- "for %s", peerinfo->hostname, peer_snap_name);
- goto out;
- }
-
- /* As there is a conflict at this point of time, the data of the
- * node that hosts a brick takes precedence. If both the local
- * node and the peer are in the same state, i.e if both of them
- * are either hosting or not hosting the bricks, for the snap,
- * then it's a peer reject
- */
- if (is_hosted == is_local) {
- gf_log (this->name, GF_LOG_ERROR,
- "Conflict in snapshot %s with peer %s",
- peer_snap_name, peerinfo->hostname);
- ret = -1;
- goto out;
- }
-
- if (is_hosted == _gf_false) {
- /* If there was a conflict, and the peer is not hosting
- * any brick, then don't accept peer data
- */
- gf_log (this->name, GF_LOG_DEBUG,
- "Peer doesn't hosts bricks for conflicting "
- "snap(%s). Not accepting peer data.",
- peer_snap_name);
- ret = 0;
- goto out;
- }
-
- /* The peer is hosting a brick in case of conflict
- * And local node isn't. Hence remove local node's
- * data and accept peer data
- */
-
- gf_log (this->name, GF_LOG_DEBUG, "Peer hosts bricks for conflicting "
- "snap(%s). Removing local data. Accepting peer data.",
- peer_snap_name);
-
- dict = dict_new();
- if (!dict) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to create dict");
- ret = -1;
- goto out;
- }
-
- ret = glusterd_snap_remove (dict, snap, _gf_true, _gf_false);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to remove snap %s", snap->snapname);
- goto out;
- }
-
-accept_peer_data:
-
- /* Accept Peer Data */
- ret = glusterd_import_friend_snap (peer_data, snap_count,
- peer_snap_name, peer_snap_id);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to import snap %s from peer %s",
- peer_snap_name, peerinfo->hostname);
- goto out;
- }
-
-out:
- if (dict)
- dict_unref (dict);
-
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-/* Compare snapshots present in peer_data, with the snapshots in
- * the current node
- */
-int32_t
-glusterd_compare_friend_snapshots (dict_t *peer_data,
- glusterd_peerinfo_t *peerinfo)
-{
- int32_t ret = -1;
- int32_t snap_count = 0;
- int i = 1;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (peer_data);
- GF_ASSERT (peerinfo);
-
- ret = dict_get_int32 (peer_data, "snap_count", &snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to fetch snap_count");
- goto out;
- }
-
- for (i = 1; i <= snap_count; i++) {
- /* Compare one snapshot from peer_data at a time */
- ret = glusterd_compare_and_update_snap (peer_data, i, peerinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to compare snapshots with peer %s",
- peerinfo->hostname);
- goto out;
- }
- }
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int32_t
glusterd_compare_friend_data (dict_t *peer_data, int32_t *status,
char *hostname)
{
@@ -5976,12 +4317,6 @@ out:
return rpc;
}
-static inline struct rpc_clnt*
-glusterd_snapd_get_rpc (glusterd_volinfo_t *volinfo)
-{
- return volinfo->snapd.rpc;
-}
-
struct rpc_clnt*
glusterd_nodesvc_get_rpc (char *server)
{
@@ -7701,67 +6036,6 @@ out:
}
int32_t
-glusterd_add_snapd_to_dict (glusterd_volinfo_t *volinfo,
- dict_t *dict, int32_t count)
-{
-
- int ret = -1;
- int32_t pid = -1;
- int32_t brick_online = -1;
- char key[1024] = {0};
- char base_key[1024] = {0};
- char pidfile[PATH_MAX] = {0};
- xlator_t *this = NULL;
- glusterd_conf_t *priv = NULL;
-
-
- GF_ASSERT (volinfo);
- GF_ASSERT (dict);
-
- this = THIS;
- GF_ASSERT (this);
-
- priv = this->private;
-
- snprintf (base_key, sizeof (base_key), "brick%d", count);
- snprintf (key, sizeof (key), "%s.hostname", base_key);
- ret = dict_set_str (dict, key, "Snapshot Daemon");
- if (ret)
- goto out;
-
- snprintf (key, sizeof (key), "%s.path", base_key);
- ret = dict_set_dynstr (dict, key, gf_strdup (uuid_utoa (MY_UUID)));
- if (ret)
- goto out;
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.port", base_key);
- ret = dict_set_int32 (dict, key, volinfo->snapd.port);
- if (ret)
- goto out;
-
- glusterd_get_snapd_pidfile (volinfo, pidfile, sizeof (pidfile));
-
- brick_online = gf_is_service_running (pidfile, &pid);
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.pid", base_key);
- ret = dict_set_int32 (dict, key, pid);
- if (ret)
- goto out;
-
- memset (key, 0, sizeof (key));
- snprintf (key, sizeof (key), "%s.status", base_key);
- ret = dict_set_int32 (dict, key, brick_online);
-
-out:
- if (ret)
- gf_log (this->name, GF_LOG_DEBUG, "Returning %d", ret);
-
- return ret;
-}
-
-int32_t
glusterd_get_all_volnames (dict_t *dict)
{
int ret = -1;
@@ -10401,418 +8675,6 @@ out:
}
int
-glusterd_snap_config_use_rsp_dict (dict_t *dst, dict_t *src)
-{
- char buf[PATH_MAX] = "";
- char *volname = NULL;
- int ret = -1;
- int config_command = 0;
- uint64_t i = 0;
- uint64_t hard_limit = GLUSTERD_SNAPS_MAX_HARD_LIMIT;
- uint64_t soft_limit = GLUSTERD_SNAPS_DEF_SOFT_LIMIT_PERCENT;
- uint64_t value = 0;
- uint64_t voldisplaycount = 0;
-
- if (!dst || !src) {
- gf_log ("", GF_LOG_ERROR, "Source or Destination "
- "dict is empty.");
- goto out;
- }
-
- ret = dict_get_int32 (dst, "config-command", &config_command);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "failed to get config-command type");
- goto out;
- }
-
- switch (config_command) {
- case GF_SNAP_CONFIG_DISPLAY:
- ret = dict_get_uint64 (src,
- GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT,
- &hard_limit);
- if (!ret) {
- ret = dict_set_uint64 (dst,
- GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT,
- hard_limit);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to set snap_max_hard_limit");
- goto out;
- }
- } else {
- /* Received dummy response from other nodes */
- ret = 0;
- goto out;
- }
-
- ret = dict_get_uint64 (src,
- GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT,
- &soft_limit);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to get snap_max_soft_limit");
- goto out;
- }
-
- ret = dict_set_uint64 (dst,
- GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT,
- soft_limit);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to set snap_max_soft_limit");
- goto out;
- }
-
- ret = dict_get_uint64 (src, "voldisplaycount",
- &voldisplaycount);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to get voldisplaycount");
- goto out;
- }
-
- ret = dict_set_uint64 (dst, "voldisplaycount",
- voldisplaycount);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to set voldisplaycount");
- goto out;
- }
-
- for (i = 0; i < voldisplaycount; i++) {
- snprintf (buf, sizeof(buf), "volume%"PRIu64"-volname", i);
- ret = dict_get_str (src, buf, &volname);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to get %s", buf);
- goto out;
- }
- ret = dict_set_str (dst, buf, volname);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to set %s", buf);
- goto out;
- }
-
- snprintf (buf, sizeof(buf),
- "volume%"PRIu64"-snap-max-hard-limit", i);
- ret = dict_get_uint64 (src, buf, &value);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to get %s", buf);
- goto out;
- }
- ret = dict_set_uint64 (dst, buf, value);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to set %s", buf);
- goto out;
- }
-
- snprintf (buf, sizeof(buf),
- "volume%"PRIu64"-active-hard-limit", i);
- ret = dict_get_uint64 (src, buf, &value);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to get %s", buf);
- goto out;
- }
- ret = dict_set_uint64 (dst, buf, value);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to set %s", buf);
- goto out;
- }
-
- snprintf (buf, sizeof(buf),
- "volume%"PRIu64"-snap-max-soft-limit", i);
- ret = dict_get_uint64 (src, buf, &value);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to get %s", buf);
- goto out;
- }
- ret = dict_set_uint64 (dst, buf, value);
- if (ret) {
- gf_log ("", GF_LOG_ERROR,
- "Unable to set %s", buf);
- goto out;
- }
- }
-
- break;
- default:
- break;
- }
-
- ret = 0;
-out:
- gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
- return ret;
-}
-
-int
-glusterd_merge_brick_status (dict_t *dst, dict_t *src)
-{
- int64_t volume_count = 0;
- int64_t index = 0;
- int64_t j = 0;
- int64_t brick_count = 0;
- int64_t brick_order = 0;
- char key[PATH_MAX] = {0, };
- char snapbrckcnt[PATH_MAX] = {0, };
- char snapbrckord[PATH_MAX] = {0, };
- int ret = -1;
- int32_t brick_online = 0;
- xlator_t *this = NULL;
- int32_t snap_command = 0;
-
- this = THIS;
- GF_ASSERT (this);
-
- if (!dst || !src) {
- gf_log (this->name, GF_LOG_ERROR, "Source or Destination "
- "dict is empty.");
- goto out;
- }
-
- ret = dict_get_int32 (dst, "type", &snap_command);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "unable to get the type of "
- "the snapshot command");
- goto out;
- }
-
- if (snap_command == GF_SNAP_OPTION_TYPE_DELETE) {
- gf_log (this->name, GF_LOG_DEBUG, "snapshot delete command."
- " Need not merge the status of the bricks");
- ret = 0;
- goto out;
- }
-
- ret = dict_get_int64 (src, "volcount", &volume_count);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to "
- "get the volume count");
- goto out;
- }
-
- for (index = 0; index < volume_count; index++) {
- ret = snprintf (snapbrckcnt, sizeof(snapbrckcnt) - 1,
- "snap-vol%"PRId64"_brickcount", index+1);
- ret = dict_get_int64 (src, snapbrckcnt, &brick_count);
- if (ret) {
- gf_log (this->name, GF_LOG_TRACE,
- "No bricks for this volume in this dict (%s)",
- snapbrckcnt);
- continue;
- }
-
- for (j = 0; j < brick_count; j++) {
- /* Fetching data from source dict */
- snprintf (snapbrckord, sizeof(snapbrckord) - 1,
- "snap-vol%"PRId64".brick%"PRId64".order", index+1, j);
-
- ret = dict_get_int64 (src, snapbrckord, &brick_order);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to get brick order (%s)",
- snapbrckord);
- goto out;
- }
-
- snprintf (key, sizeof (key) - 1,
- "snap-vol%"PRId64".brick%"PRId64".status", index+1,
- brick_order);
- ret = dict_get_int32 (src, key, &brick_online);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to "
- "get the brick status (%s)", key);
- goto out;
- }
-
- ret = dict_set_int32 (dst, key, brick_online);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to "
- "set the brick status (%s)", key);
- goto out;
- }
- brick_online = 0;
- }
- }
-
- ret = 0;
-
-out:
- return ret;
-}
-
-/* Aggregate missed_snap_counts from different nodes and save it *
- * in the req_dict of the originator node */
-int
-glusterd_snap_create_use_rsp_dict (dict_t *dst, dict_t *src)
-{
- char *buf = NULL;
- char *tmp_str = NULL;
- char name_buf[PATH_MAX] = "";
- int32_t i = -1;
- int32_t ret = -1;
- int32_t src_missed_snap_count = -1;
- int32_t dst_missed_snap_count = -1;
- xlator_t *this = NULL;
- int8_t soft_limit_flag = -1;
-
- this = THIS;
- GF_ASSERT (this);
-
- if (!dst || !src) {
- gf_log (this->name, GF_LOG_ERROR, "Source or Destination "
- "dict is empty.");
- goto out;
- }
-
- ret = glusterd_merge_brick_status (dst, src);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to merge brick "
- "status");
- goto out;
- }
-
- ret = dict_get_str (src, "snapuuid", &buf);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to get snap UUID");
- goto out;
- }
-
- ret = dict_set_dynstr_with_alloc (dst, "snapuuid", buf);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to set snap uuid in dict");
- goto out;
- }
-
- /* set in dst dictionary soft-limit-reach only if soft-limit-reach
- * is present src dictionary */
- ret = dict_get_int8 (src, "soft-limit-reach", &soft_limit_flag);
- if (!ret) {
- ret = dict_set_int8 (dst, "soft-limit-reach", soft_limit_flag);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to set "
- "soft_limit_flag");
- goto out;
- }
- }
-
- ret = dict_get_int32 (src, "missed_snap_count",
- &src_missed_snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_DEBUG, "No missed snaps");
- ret = 0;
- goto out;
- }
-
- ret = dict_get_int32 (dst, "missed_snap_count",
- &dst_missed_snap_count);
- if (ret) {
- /* Initialize dst_missed_count for the first time */
- dst_missed_snap_count = 0;
- }
-
- for (i = 0; i < src_missed_snap_count; i++) {
- snprintf (name_buf, sizeof(name_buf), "missed_snaps_%d",
- i);
- ret = dict_get_str (src, name_buf, &buf);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to fetch %s", name_buf);
- goto out;
- }
-
- snprintf (name_buf, sizeof(name_buf), "missed_snaps_%d",
- dst_missed_snap_count);
-
- tmp_str = gf_strdup (buf);
- if (!tmp_str) {
- ret = -1;
- goto out;
- }
-
- ret = dict_set_dynstr (dst, name_buf, tmp_str);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set %s", name_buf);
- goto out;
- }
-
- tmp_str = NULL;
- dst_missed_snap_count++;
- }
-
- ret = dict_set_int32 (dst, "missed_snap_count", dst_missed_snap_count);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Unable to set dst_missed_snap_count");
- goto out;
- }
-
-out:
- if (ret && tmp_str)
- GF_FREE(tmp_str);
-
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int
-glusterd_snap_use_rsp_dict (dict_t *dst, dict_t *src)
-{
- int ret = -1;
- int32_t snap_command = 0;
-
- if (!dst || !src) {
- gf_log ("", GF_LOG_ERROR, "Source or Destination "
- "dict is empty.");
- goto out;
- }
-
- ret = dict_get_int32 (dst, "type", &snap_command);
- if (ret) {
- gf_log ("", GF_LOG_ERROR, "unable to get the type of "
- "the snapshot command");
- goto out;
- }
-
- switch (snap_command) {
- case GF_SNAP_OPTION_TYPE_CREATE:
- case GF_SNAP_OPTION_TYPE_DELETE:
- ret = glusterd_snap_create_use_rsp_dict (dst, src);
- if (ret) {
- gf_log ("", GF_LOG_ERROR, "Unable to use rsp dict");
- goto out;
- }
- break;
- case GF_SNAP_OPTION_TYPE_CONFIG:
- ret = glusterd_snap_config_use_rsp_dict (dst, src);
- if (ret) {
- gf_log ("", GF_LOG_ERROR, "Unable to use rsp dict");
- goto out;
- }
- break;
- default:
- // copy the response dictinary's contents to the dict to be
- // sent back to the cli
- dict_copy (src, dst);
- break;
- }
-
- ret = 0;
-out:
- gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
- return ret;
-}
-
-int
glusterd_sys_exec_output_rsp_dict (dict_t *dst, dict_t *src)
{
char output_name[PATH_MAX] = "";
@@ -11692,100 +9554,6 @@ out:
return is_status_tasks;
}
-int
-glusterd_compare_snap_time(struct list_head *list1, struct list_head *list2)
-{
- glusterd_snap_t *snap1 = NULL;
- glusterd_snap_t *snap2 = NULL;
- double diff_time = 0;
-
- GF_ASSERT (list1);
- GF_ASSERT (list2);
-
- snap1 = list_entry(list1, glusterd_snap_t, snap_list);
- snap2 = list_entry(list2, glusterd_snap_t, snap_list);
- diff_time = difftime(snap1->time_stamp, snap2->time_stamp);
-
- return ((int)diff_time);
-}
-
-int
-glusterd_compare_snap_vol_time(struct list_head *list1, struct list_head *list2)
-{
- glusterd_volinfo_t *snapvol1 = NULL;
- glusterd_volinfo_t *snapvol2 = NULL;
- double diff_time = 0;
-
- GF_ASSERT (list1);
- GF_ASSERT (list2);
-
- snapvol1 = list_entry(list1, glusterd_volinfo_t, snapvol_list);
- snapvol2 = list_entry(list2, glusterd_volinfo_t, snapvol_list);
- diff_time = difftime(snapvol1->snapshot->time_stamp,
- snapvol2->snapshot->time_stamp);
-
- return ((int)diff_time);
-}
-
-int32_t
-glusterd_missed_snapinfo_new (glusterd_missed_snap_info **missed_snapinfo)
-{
- glusterd_missed_snap_info *new_missed_snapinfo = NULL;
- int32_t ret = -1;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (missed_snapinfo);
-
- new_missed_snapinfo = GF_CALLOC (1, sizeof(*new_missed_snapinfo),
- gf_gld_mt_missed_snapinfo_t);
-
- if (!new_missed_snapinfo)
- goto out;
-
- INIT_LIST_HEAD (&new_missed_snapinfo->missed_snaps);
- INIT_LIST_HEAD (&new_missed_snapinfo->snap_ops);
-
- *missed_snapinfo = new_missed_snapinfo;
-
- ret = 0;
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
-int32_t
-glusterd_missed_snap_op_new (glusterd_snap_op_t **snap_op)
-{
- glusterd_snap_op_t *new_snap_op = NULL;
- int32_t ret = -1;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (snap_op);
-
- new_snap_op = GF_CALLOC (1, sizeof(*new_snap_op),
- gf_gld_mt_missed_snapinfo_t);
-
- if (!new_snap_op)
- goto out;
-
- new_snap_op->brick_num = -1;
- new_snap_op->op = -1;
- new_snap_op->status = -1;
- INIT_LIST_HEAD (&new_snap_op->snap_ops_list);
-
- *snap_op = new_snap_op;
-
- ret = 0;
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
/* Tells if rebalance needs to be started for the given volume on the peer
*
* Rebalance should be started on a peer only if an involved brick is present on
@@ -12116,468 +9884,6 @@ glusterd_compare_volume_name(struct list_head *list1, struct list_head *list2)
return strcmp(volinfo1->volname, volinfo2->volname);
}
-int32_t
-glusterd_mount_lvm_snapshot (glusterd_brickinfo_t *brickinfo,
- char *brick_mount_path)
-{
- char msg[NAME_MAX] = "";
- char mnt_opts[1024] = "";
- int32_t ret = -1;
- runner_t runner = {0, };
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (brick_mount_path);
- GF_ASSERT (brickinfo);
-
-
- runinit (&runner);
- snprintf (msg, sizeof (msg), "mount %s %s",
- brickinfo->device_path, brick_mount_path);
-
- strcpy (mnt_opts, brickinfo->mnt_opts);
-
- /* XFS file-system does not allow to mount file-system with duplicate
- * UUID. File-system UUID of snapshot and its origin volume is same.
- * Therefore to mount such a snapshot in XFS we need to pass nouuid
- * option
- */
- if (!strcmp (brickinfo->fstype, "xfs") &&
- !mntopts_exists (mnt_opts, "nouuid")) {
- if ( strlen (mnt_opts) > 0 )
- strcat (mnt_opts, ",");
- strcat (mnt_opts, "nouuid");
- }
-
-
- if ( strlen (mnt_opts) > 0 ) {
- runner_add_args (&runner, "mount", "-o", mnt_opts,
- brickinfo->device_path, brick_mount_path, NULL);
- } else {
- runner_add_args (&runner, "mount", brickinfo->device_path,
- brick_mount_path, NULL);
- }
-
- runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
- ret = runner_run (&runner);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "mounting the snapshot "
- "logical device %s failed (error: %s)",
- brickinfo->device_path, strerror (errno));
- goto out;
- } else
- gf_log (this->name, GF_LOG_DEBUG, "mounting the snapshot "
- "logical device %s successful", brickinfo->device_path);
-
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning with %d", ret);
- return ret;
-}
-
-int32_t
-glusterd_umount (const char *path)
-{
- char msg[NAME_MAX] = "";
- int32_t ret = -1;
- runner_t runner = {0, };
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (path);
-
- runinit (&runner);
- snprintf (msg, sizeof (msg), "umount path %s", path);
- runner_add_args (&runner, _PATH_UMOUNT, "-f", path, NULL);
- runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
- ret = runner_run (&runner);
- if (ret)
- gf_log (this->name, GF_LOG_ERROR, "umounting %s failed (%s)",
- path, strerror (errno));
-
- gf_log (this->name, GF_LOG_TRACE, "Returning with %d", ret);
- return ret;
-}
-
-int32_t
-glusterd_copy_file (const char *source, const char *destination)
-{
- int32_t ret = -1;
- xlator_t *this = NULL;
- char buffer[1024] = "";
- int src_fd = -1;
- int dest_fd = -1;
- int read_len = -1;
- struct stat stbuf = {0,};
- mode_t dest_mode = 0;
-
- this = THIS;
- GF_ASSERT (this);
-
- GF_ASSERT (source);
- GF_ASSERT (destination);
-
- /* Here is stat is made to get the file permission of source file*/
- ret = lstat (source, &stbuf);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "%s not found", source);
- goto out;
- }
-
- dest_mode = stbuf.st_mode & 0777;
-
- src_fd = open (source, O_RDONLY);
- if (src_fd < 0) {
- ret = -1;
- gf_log (this->name, GF_LOG_ERROR, "Unable to open file %s",
- source);
- goto out;
- }
-
- dest_fd = open (destination, O_CREAT | O_RDWR, dest_mode);
- if (dest_fd < 0) {
- ret = -1;
- gf_log (this->name, GF_LOG_ERROR,
- "Unble to open a file %s", destination);
- goto out;
- }
-
- do {
- ret = read (src_fd, buffer, sizeof (buffer));
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR, "Error reading file "
- "%s", source);
- goto out;
- }
- read_len = ret;
- if (read_len == 0)
- break;
-
- ret = write (dest_fd, buffer, read_len);
- if (ret != read_len) {
- gf_log (this->name, GF_LOG_ERROR, "Error writing in "
- "file %s", destination);
- goto out;
- }
- } while (ret > 0);
-out :
- if (src_fd > 0)
- close (src_fd);
-
- if (dest_fd > 0)
- close (dest_fd);
- return ret;
-}
-
-int32_t
-glusterd_copy_folder (const char *source, const char *destination)
-{
- DIR *dir_ptr = NULL;
- struct dirent *direntp = NULL;
- int32_t ret = -1;
- char src_path[PATH_MAX] = "";
- char dest_path[PATH_MAX] = "";
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
-
- GF_ASSERT (source);
- GF_ASSERT (destination);
-
- dir_ptr = opendir (source);
- if (!dir_ptr) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to open %s", source);
- goto out;
- }
-
- while ((direntp = readdir (dir_ptr)) != NULL) {
- if (strcmp (direntp->d_name, ".") == 0 ||
- strcmp (direntp->d_name, "..") == 0)
- continue;
- ret = snprintf (src_path, sizeof (src_path), "%s/%s",
- source, direntp->d_name);
- if (ret < 0)
- goto out;
-
- ret = snprintf (dest_path, sizeof (dest_path), "%s/%s",
- destination, direntp->d_name);
- if (ret < 0)
- goto out;
-
- ret = glusterd_copy_file (src_path, dest_path);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Could not copy "
- "%s to %s", src_path, dest_path);
- goto out;
- }
- }
-out:
- if (dir_ptr)
- closedir (dir_ptr);
-
- return ret;
-}
-
-int32_t
-glusterd_get_geo_rep_session (char *slave_key, char *origin_volname,
- dict_t *gsync_slaves_dict, char *session,
- char *slave)
-{
- int32_t ret = -1;
- char *token = NULL;
- char *temp = NULL;
- char *ip = NULL;
- char *buffer = NULL;
- xlator_t *this = NULL;
- char *slave_temp = NULL;
- char *save_ptr = NULL;
-
- this = THIS;
- GF_ASSERT (this);
-
- GF_ASSERT (slave_key);
- GF_ASSERT (origin_volname);
- GF_ASSERT (gsync_slaves_dict);
-
- ret = dict_get_str (gsync_slaves_dict, slave_key, &buffer);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to "
- "get value for key %s", slave_key);
- goto out;
- }
-
- temp = gf_strdup (buffer);
- if (!temp) {
- ret = -1;
- goto out;
- }
-
- token = strtok_r (temp, "/", &save_ptr);
-
- token = strtok_r (NULL, ":", &save_ptr);
- if (!token) {
- ret = -1;
- goto out;
- }
- token++;
-
- ip = gf_strdup (token);
- if (!ip) {
- ret = -1;
- goto out;
- }
-
- token = strtok_r (NULL, "\0", &save_ptr);
- if (!token) {
- ret = -1;
- goto out;
- }
- token++;
-
- slave_temp = gf_strdup (token);
- if (!slave) {
- ret = -1;
- goto out;
- }
-
- ret = snprintf (session, PATH_MAX, "%s_%s_%s",
- origin_volname, ip, slave_temp);
- if (ret < 0) /* Negative value is an error */
- goto out;
-
- ret = snprintf (slave, PATH_MAX, "%s::%s", ip, slave_temp);
- if (ret < 0) {
- goto out;
- }
-
- ret = 0; /* Success */
-
-out:
- if (temp)
- GF_FREE (temp);
-
- if (ip)
- GF_FREE (ip);
-
- if (slave_temp)
- GF_FREE (slave_temp);
-
- return ret;
-}
-
-int32_t
-glusterd_copy_quota_files (glusterd_volinfo_t *src_vol,
- glusterd_volinfo_t *dest_vol) {
-
- int32_t ret = -1;
- char src_dir[PATH_MAX] = "";
- char dest_dir[PATH_MAX] = "";
- char src_path[PATH_MAX] = "";
- char dest_path[PATH_MAX] = "";
- xlator_t *this = NULL;
- glusterd_conf_t *priv = NULL;
- struct stat stbuf = {0,};
-
- this = THIS;
- GF_ASSERT (this);
- priv = this->private;
- GF_ASSERT (priv);
-
- GF_ASSERT (src_vol);
- GF_ASSERT (dest_vol);
-
- GLUSTERD_GET_VOLUME_DIR (src_dir, src_vol, priv);
-
- GLUSTERD_GET_VOLUME_DIR (dest_dir, dest_vol, priv);
-
- ret = snprintf (src_path, sizeof (src_path), "%s/quota.conf",
- src_dir);
- if (ret < 0)
- goto out;
-
- /* quota.conf is not present if quota is not enabled, Hence ignoring
- * the absence of this file
- */
- ret = lstat (src_path, &stbuf);
- if (ret) {
- ret = 0;
- gf_log (this->name, GF_LOG_DEBUG, "%s not found", src_path);
- goto out;
- }
-
- ret = snprintf (dest_path, sizeof (dest_path), "%s/quota.conf",
- dest_dir);
- if (ret < 0)
- goto out;
-
- ret = glusterd_copy_file (src_path, dest_path);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to copy %s in %s",
- src_path, dest_path);
- goto out;
- }
-
- ret = snprintf (src_path, sizeof (src_path), "%s/quota.cksum",
- src_dir);
- if (ret < 0)
- goto out;
-
- /* If quota.conf is present and quota.cksum is not present, then
- * that scenario is considered as invalid, hence error out.
- */
- ret = lstat (src_path, &stbuf);
- if (ret) {
- ret = -1;
- gf_log (this->name, GF_LOG_ERROR, "%s not found", src_path);
- goto out;
- }
-
- ret = snprintf (dest_path, sizeof (dest_path), "%s/quota.cksum",
- dest_dir);
- if (ret < 0)
- goto out;
-
- ret = glusterd_copy_file (src_path, dest_path);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to copy %s in %s",
- src_path, dest_path);
- goto out;
- }
-
-out:
- return ret;
-
-}
-
-int32_t
-glusterd_restore_geo_rep_files (glusterd_volinfo_t *snap_vol)
-{
- int32_t ret = -1;
- char src_path[PATH_MAX] = "";
- char dest_path[PATH_MAX] = "";
- xlator_t *this = NULL;
- char *origin_volname = NULL;
- glusterd_volinfo_t *origin_vol = NULL;
- int i = 0;
- char key[PATH_MAX] = "";
- char session[PATH_MAX] = "";
- char slave[PATH_MAX] = "";
- char snapgeo_dir[PATH_MAX] = "";
- glusterd_conf_t *priv = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- priv = this->private;
- GF_ASSERT (priv);
-
- GF_ASSERT (snap_vol);
-
- origin_volname = gf_strdup (snap_vol->parent_volname);
- if (!origin_volname) {
- ret = -1;
- goto out;
- }
-
- ret = glusterd_volinfo_find (origin_volname, &origin_vol);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to fetch "
- "volinfo for volname %s", origin_volname);
- goto out;
- }
-
- for (i = 1 ; i <= snap_vol->gsync_slaves->count; i++) {
- ret = snprintf (key, sizeof (key), "slave%d", i);
- if (ret < 0) {
- goto out;
- }
-
- /* "origin_vol" is used here because geo-replication saves
- * the session in the form of master_ip_slave.
- * As we need the master volume to be same even after
- * restore, we are passing the origin volume name.
- *
- * "snap_vol->gsync_slaves" contain the slave information
- * when the snapshot was taken, hence we have to restore all
- * those slaves information when we do snapshot restore.
- */
- ret = glusterd_get_geo_rep_session (key, origin_vol->volname,
- snap_vol->gsync_slaves,
- session, slave);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to get geo-rep session");
- goto out;
- }
-
- GLUSTERD_GET_SNAP_GEO_REP_DIR(snapgeo_dir, snap_vol->snapshot,
- priv);
- ret = snprintf (src_path, sizeof (src_path),
- "%s/%s", snapgeo_dir, session);
- if (ret < 0)
- goto out;
-
- ret = snprintf (dest_path, sizeof (dest_path),
- "%s/%s/%s", priv->workdir, GEOREP,
- session);
- if (ret < 0)
- goto out;
-
- ret = glusterd_copy_folder (src_path, dest_path);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Could not copy "
- "%s to %s", src_path, dest_path);
- goto out;
- }
- }
-out:
- if (origin_volname)
- GF_ASSERT (origin_volname);
-
- return ret;
-}
-
/* This is an utility function which will recursively delete
* a folder and its contents.
*
@@ -12650,428 +9956,6 @@ out:
return ret;
}
-gf_boolean_t
-glusterd_volume_quorum_calculate (glusterd_volinfo_t *volinfo, dict_t *dict,
- int down_count, gf_boolean_t first_brick_on,
- int8_t snap_force, int quorum_count,
- char *quorum_type, char **op_errstr)
-{
- gf_boolean_t quorum_met = _gf_false;
- char err_str[PATH_MAX] = {0, };
- xlator_t *this = NULL;
- int up_count = 0;
-
- this = THIS;
- GF_ASSERT (this);
-
- if (!volinfo || !dict) {
- gf_log (this->name, GF_LOG_WARNING, "input parameters NULL");
- goto out;
- }
-
- if (!snap_force && down_count) {
- snprintf (err_str, sizeof (err_str), "One or more bricks may "
- "be down. Use the force option ");
- gf_log (this->name, GF_LOG_ERROR, "%s", err_str);
- *op_errstr = gf_strdup (err_str);
- goto out;
- }
-
- up_count = volinfo->dist_leaf_count - down_count;
-
- if (quorum_type && !strcmp (quorum_type, "fixed")) {
- if (up_count >= quorum_count) {
- quorum_met = _gf_true;
- goto out;
- }
- } else {
- if ((GF_CLUSTER_TYPE_DISPERSE != volinfo->type) &&
- (volinfo->dist_leaf_count % 2 == 0)) {
- if ((up_count > quorum_count) ||
- ((up_count == quorum_count) && first_brick_on)) {
- quorum_met = _gf_true;
- goto out;
- }
- } else {
- if (up_count >= quorum_count) {
- quorum_met = _gf_true;
- goto out;
- }
- }
- }
-
- if (!quorum_met) {
- snprintf (err_str, sizeof (err_str), "quorum is not met");
- gf_log (this->name, GF_LOG_WARNING, "%s", err_str);
- *op_errstr = gf_strdup (err_str);
- }
-
-out:
- return quorum_met;
-}
-
-int32_t
-glusterd_volume_quorum_check (glusterd_volinfo_t *volinfo, int64_t index,
- dict_t *dict, char *key_prefix,
- int8_t snap_force, int quorum_count,
- char *quorum_type, char **op_errstr)
-{
- int ret = 0;
- xlator_t *this = NULL;
- int64_t i = 0;
- int64_t j = 0;
- char key[1024] = {0, };
- int down_count = 0;
- gf_boolean_t first_brick_on = _gf_true;
- glusterd_conf_t *priv = NULL;
- gf_boolean_t quorum_met = _gf_false;
- int distribute_subvols = 0;
- int32_t brick_online = 0;
- char err_str[PATH_MAX] = {0, };
-
- this = THIS;
- GF_ASSERT (this);
- priv = this->private;
- GF_ASSERT (priv);
-
- if (!volinfo || !dict) {
- gf_log (this->name, GF_LOG_WARNING, "input parameters NULL");
- goto out;
- }
-
- if ((!glusterd_is_volume_replicate (volinfo) ||
- volinfo->replica_count < 3) &&
- (GF_CLUSTER_TYPE_DISPERSE != volinfo->type)) {
- for (i = 0; i < volinfo->brick_count ; i++) {
- /* for a pure distribute volume, and replica volume
- with replica count 2, quorum is not met if even
- one of its subvolumes is down
- */
- snprintf (key, sizeof (key), "%s%"PRId64".brick%"PRId64".status",
- key_prefix, index, i);
- ret = dict_get_int32 (dict, key, &brick_online);
- if (ret || !brick_online) {
- ret = 1;
- snprintf (err_str, sizeof (err_str), "quorum "
- "is not met");
- gf_log (this->name, GF_LOG_ERROR, "%s",
- err_str);
- *op_errstr = gf_strdup (err_str);
- goto out;
- }
- }
- ret = 0;
- quorum_met = _gf_true;
- } else {
- distribute_subvols = volinfo->brick_count /
- volinfo->dist_leaf_count;
- for (j = 0; j < distribute_subvols; j++) {
- // by default assume quorum is not met
- /* TODO: Handle distributed striped replicate volumes
- Currently only distributed replicate volumes are
- handled.
- */
- ret = 1;
- quorum_met = _gf_false;
- for (i = 0; i < volinfo->dist_leaf_count; i++) {
- snprintf (key, sizeof (key),
- "%s%"PRId64".brick%"PRId64".status", key_prefix,
- index,
- (j * volinfo->dist_leaf_count) + i);
- ret = dict_get_int32 (dict, key, &brick_online);
- if (ret || !brick_online) {
- if (i == 0)
- first_brick_on = _gf_false;
- down_count++;
- }
- }
-
- quorum_met = glusterd_volume_quorum_calculate (volinfo,
- dict,
- down_count,
- first_brick_on,
- snap_force,
- quorum_count,
- quorum_type,
- op_errstr);
- // goto out if quorum is not met
- if (!quorum_met) {
- ret = -1;
- goto out;
- }
-
- down_count = 0;
- first_brick_on = _gf_true;
- }
- }
-
- if (quorum_met) {
- gf_log (this->name, GF_LOG_DEBUG, "volume %s is in quorum",
- volinfo->volname);
- ret = 0;
- }
-
-out:
- return ret;
-}
-
-int32_t
-glusterd_snap_quorum_check_for_create (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct list_head *peers_list)
-{
- int8_t snap_force = 0;
- int32_t force = 0;
- char err_str[PATH_MAX] = {0, };
- int quorum_count = 0;
- char *quorum_type = NULL;
- int32_t tmp = 0;
- char key_prefix[PATH_MAX] = {0, };
- char *snapname = NULL;
- glusterd_snap_t *snap = NULL;
- glusterd_volinfo_t *volinfo = NULL;
- char *volname = NULL;
- int64_t volcount = 0;
- char key[PATH_MAX] = {0, };
- int64_t i = 0;
- int32_t ret = -1;
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
-
- if (!dict) {
- gf_log (this->name, GF_LOG_ERROR, "dict is NULL");
- goto out;
- }
-
- if (snap_volume) {
- ret = dict_get_str (dict, "snapname", &snapname);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to "
- "get snapname");
- goto out;
- }
-
- snap = glusterd_find_snap_by_name (snapname);
- if (!snap) {
- gf_log (this->name, GF_LOG_ERROR, "failed to "
- "get the snapshot %s", snapname);
- ret = -1;
- goto out;
- }
- }
-
- ret = dict_get_int32 (dict, "flags", &force);
- if (!ret && (force & GF_CLI_FLAG_OP_FORCE))
- snap_force = 1;
- if (!snap_force) {
- /* Do a quorum check of glusterds also. Because,
- the missed snapshot information will be saved
- by glusterd and if glusterds are not in
- quorum, then better fail the snapshot
- */
- if (!does_gd_meet_server_quorum (this, peers_list, _gf_true)) {
- snprintf (err_str, sizeof (err_str),
- "glusterds are not in quorum");
- gf_log (this->name, GF_LOG_WARNING, "%s",
- err_str);
- *op_errstr = gf_strdup (err_str);
- ret = -1;
- goto out;
- }
-
- gf_log (this->name, GF_LOG_DEBUG, "glusterds are in "
- "quorum");
- }
-
- ret = dict_get_int64 (dict, "volcount", &volcount);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to get "
- "volcount");
- goto out;
- }
-
- for (i = 1; i <= volcount; i++) {
- snprintf (key, sizeof (key), "%s%"PRId64,
- snap_volume?"snap-volname":"volname", i);
- ret = dict_get_str (dict, key, &volname);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "failed to "
- "get volname");
- goto out;
- }
-
- if (snap_volume) {
- ret = glusterd_snap_volinfo_find (volname, snap,
- &volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "failed to get snap volume %s "
- "for snap %s", volname,
- snapname);
- goto out;
- }
- } else {
- ret = glusterd_volinfo_find (volname, &volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "failed to find the volume %s",
- volname);
- goto out;
- }
- }
-
- /* for replicate volumes with replica count equal to or
- greater than 3, do quorum check by getting what type
- of quorum rule has been set by getting the volume
- option set. If getting the option fails, then assume
- default.
- AFR does this:
- if quorum type is "auto":
- - for odd numner of bricks (n), n/2 + 1
- bricks should be present
- - for even number of bricks n, n/2 bricks
- should be present along with the 1st
- subvolume
- if quorum type is not "auto":
- - get the quorum count from dict with the
- help of the option "cluster.quorum-count"
- if the option is not there in the dict,
- then assume quorum type is auto and follow
- the above method.
- For non replicate volumes quorum is met only if all
- the bricks of the volume are online
- */
-
- if (GF_CLUSTER_TYPE_REPLICATE == volinfo->type) {
- if (volinfo->replica_count %2 == 0)
- quorum_count = volinfo->replica_count/2;
- else
- quorum_count =
- volinfo->replica_count/2 + 1;
- } else if (GF_CLUSTER_TYPE_DISPERSE == volinfo->type) {
- quorum_count = volinfo->disperse_count -
- volinfo->redundancy_count;
- } else {
- quorum_count = volinfo->brick_count;
- }
-
- ret = dict_get_str (volinfo->dict,
- "cluster.quorum-type",
- &quorum_type);
- if (!ret && !strcmp (quorum_type, "fixed")) {
- ret = dict_get_int32 (volinfo->dict,
- "cluster.quorum-count",
- &tmp);
- /* if quorum-type option is not found in the
- dict assume auto quorum type. i.e n/2 + 1.
- The same assumption is made when quorum-count
- option cannot be obtained from the dict (even
- if the quorum-type option is not set to auto,
- the behavior is set to the default behavior)
- */
- if (!ret) {
- /* for dispersed volumes, only allow quorums
- equal or larger than minimum functional
- value.
- */
- if ((GF_CLUSTER_TYPE_DISPERSE !=
- volinfo->type) ||
- (tmp >= quorum_count)) {
- quorum_count = tmp;
- } else {
- gf_log(this->name, GF_LOG_INFO,
- "Ignoring small quorum-count "
- "(%d) on dispersed volume", tmp);
- quorum_type = NULL;
- }
- }
- else
- quorum_type = NULL;
- }
-
- snprintf (key_prefix, sizeof (key_prefix),
- "%s", snap_volume?"snap-vol":"vol");
-
- ret = glusterd_volume_quorum_check (volinfo, i, dict,
- key_prefix,
- snap_force,
- quorum_count,
- quorum_type,
- op_errstr);
- if (ret) {
- gf_log (this->name, GF_LOG_WARNING, "volume %s "
- "is not in quorum", volinfo->volname);
- goto out;
- }
- }
-out:
- return ret;
-}
-
-int32_t
-glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct list_head *peers_list)
-{
- int32_t ret = -1;
- xlator_t *this = NULL;
- int32_t snap_command = 0;
- char err_str[PATH_MAX] = {0, };
-
- this = THIS;
- GF_ASSERT (this);
-
- if (!dict) {
- gf_log (this->name, GF_LOG_ERROR, "dict is NULL");
- goto out;
- }
-
-
- ret = dict_get_int32 (dict, "type", &snap_command);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "unable to get the type of "
- "the snapshot command");
- goto out;
- }
-
- switch (snap_command) {
- case GF_SNAP_OPTION_TYPE_CREATE:
- ret = glusterd_snap_quorum_check_for_create (dict, snap_volume,
- op_errstr,
- peers_list);
- if (ret) {
- gf_log (this->name, GF_LOG_WARNING, "Quorum check"
- "failed during snapshot create command");
- goto out;
- }
- break;
- case GF_SNAP_OPTION_TYPE_DELETE:
- case GF_SNAP_OPTION_TYPE_RESTORE:
- if (!does_gd_meet_server_quorum (this, peers_list, _gf_true)) {
- ret = -1;
- snprintf (err_str, sizeof (err_str),
- "glusterds are not in quorum");
- gf_log (this->name, GF_LOG_WARNING, "%s",
- err_str);
- *op_errstr = gf_strdup (err_str);
- goto out;
- }
-
- gf_log (this->name, GF_LOG_DEBUG, "glusterds are in "
- "quorum");
- break;
- default:
- break;
- }
-
- ret = 0;
-
-out:
- return ret;
-}
-
static int
gd_default_synctask_cbk (int ret, call_frame_t *frame, void *opaque)
{
@@ -13160,531 +10044,6 @@ glusterd_get_rebalance_volfile (glusterd_volinfo_t *volinfo,
volinfo->volname);
}
-/* Snapd functions */
-int
-glusterd_is_snapd_enabled (glusterd_volinfo_t *volinfo)
-{
- int ret = 0;
- xlator_t *this = THIS;
-
- ret = dict_get_str_boolean (volinfo->dict, "features.uss", -2);
- if (ret == -2) {
- gf_log (this->name, GF_LOG_DEBUG, "Key features.uss not "
- "present in the dict for volume %s", volinfo->volname);
- ret = 0;
-
- } else if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to get 'features.uss'"
- " from dict for volume %s", volinfo->volname);
- }
-
- return ret;
-}
-
-void
-glusterd_get_snapd_rundir (glusterd_volinfo_t *volinfo,
- char *path, int path_len)
-{
- char workdir [PATH_MAX] = {0,};
- glusterd_conf_t *priv = THIS->private;
-
- GLUSTERD_GET_VOLUME_DIR (workdir, volinfo, priv);
-
- snprintf (path, path_len, "%s/run", workdir);
-}
-
-void
-glusterd_get_snapd_volfile (glusterd_volinfo_t *volinfo,
- char *path, int path_len)
-{
- char workdir [PATH_MAX] = {0,};
- glusterd_conf_t *priv = THIS->private;
-
- GLUSTERD_GET_VOLUME_DIR (workdir, volinfo, priv);
-
- snprintf (path, path_len, "%s/%s-snapd.vol", workdir,
- volinfo->volname);
-}
-
-void
-glusterd_get_snapd_pidfile (glusterd_volinfo_t *volinfo,
- char *path, int path_len)
-{
- char rundir [PATH_MAX] = {0,};
-
- glusterd_get_snapd_rundir (volinfo, rundir, sizeof (rundir));
-
- snprintf (path, path_len, "%s/%s-snapd.pid", rundir, volinfo->volname);
-}
-
-void
-glusterd_set_snapd_socket_filepath (glusterd_volinfo_t *volinfo,
- char *path, int path_len)
-{
- char sockfilepath[PATH_MAX] = {0,};
- char rundir[PATH_MAX] = {0,};
-
- glusterd_get_snapd_rundir (volinfo, rundir, sizeof (rundir));
- snprintf (sockfilepath, sizeof (sockfilepath), "%s/run-%s",
- rundir, uuid_utoa (MY_UUID));
-
- glusterd_set_socket_filepath (sockfilepath, path, path_len);
-}
-
-gf_boolean_t
-glusterd_is_snapd_running (glusterd_volinfo_t *volinfo)
-{
- char pidfile [PATH_MAX] = {0,};
- int pid = -1;
- glusterd_conf_t *priv = THIS->private;
-
- glusterd_get_snapd_pidfile (volinfo, pidfile,
- sizeof (pidfile));
-
- return gf_is_service_running (pidfile, &pid);
-}
-
-int
-glusterd_restart_snapds (glusterd_conf_t *priv)
-{
- glusterd_volinfo_t *volinfo = NULL;
- int ret = 0;
- xlator_t *this = THIS;
-
- list_for_each_entry (volinfo, &priv->volumes, vol_list) {
- if (volinfo->status == GLUSTERD_STATUS_STARTED &&
- glusterd_is_snapd_enabled (volinfo)) {
- ret = glusterd_snapd_start (volinfo,
- _gf_false);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Couldn't start snapd for "
- "vol: %s", volinfo->volname);
- goto out;
- }
- }
- }
-out:
- return ret;
-}
-
-gf_boolean_t
-glusterd_is_snapd_online (glusterd_volinfo_t *volinfo)
-{
- return volinfo->snapd.online;
-}
-
-void
-glusterd_snapd_set_online_status (glusterd_volinfo_t *volinfo,
- gf_boolean_t status)
-{
- volinfo->snapd.online = status;
-}
-
-static inline void
-glusterd_snapd_set_rpc (glusterd_volinfo_t *volinfo, struct rpc_clnt *rpc)
-{
- volinfo->snapd.rpc = rpc;
-}
-
-int32_t
-glusterd_snapd_connect (glusterd_volinfo_t *volinfo, char *socketpath)
-{
- int ret = 0;
- dict_t *options = NULL;
- struct rpc_clnt *rpc = NULL;
- glusterd_conf_t *priv = THIS->private;
-
- rpc = glusterd_snapd_get_rpc (volinfo);
-
- if (rpc == NULL) {
- /* Setting frame-timeout to 10mins (600seconds).
- * Unix domain sockets ensures that the connection is reliable.
- * The default timeout of 30mins used for unreliable network
- * connections is too long for unix domain socket connections.
- */
- ret = rpc_transport_unix_options_build (&options, socketpath,
- 600);
- if (ret)
- goto out;
-
- ret = dict_set_str(options,
- "transport.socket.ignore-enoent", "on");
- if (ret)
- goto out;
-
- glusterd_volinfo_ref (volinfo);
-
- synclock_unlock (&priv->big_lock);
- ret = glusterd_rpc_create (&rpc, options,
- glusterd_snapd_rpc_notify,
- volinfo);
- synclock_lock (&priv->big_lock);
- if (ret)
- goto out;
-
- (void) glusterd_snapd_set_rpc (volinfo, rpc);
- }
-out:
- return ret;
-}
-
-int32_t
-glusterd_snapd_disconnect (glusterd_volinfo_t *volinfo)
-{
- struct rpc_clnt *rpc = NULL;
- glusterd_conf_t *priv = THIS->private;
-
- rpc = glusterd_snapd_get_rpc (volinfo);
-
- (void) glusterd_snapd_set_rpc (volinfo, NULL);
-
- if (rpc)
- glusterd_rpc_clnt_unref (priv, rpc);
-
- return 0;
-}
-
-int32_t
-glusterd_snapd_start (glusterd_volinfo_t *volinfo, gf_boolean_t wait)
-{
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_conf_t *priv = NULL;
- runner_t runner = {0,};
- char pidfile[PATH_MAX] = {0,};
- char logfile[PATH_MAX] = {0,};
- char logdir[PATH_MAX] = {0,};
- char volfile[PATH_MAX] = {0,};
- char glusterd_uuid [1024] = {0,};
- char rundir[PATH_MAX] = {0,};
- char sockfpath[PATH_MAX] = {0,};
- char volfileid[256] = {0};
- char *volfileserver = NULL;
- char valgrind_logfile[PATH_MAX] = {0};
- int snapd_port = 0;
- char *volname = volinfo->volname;
- char snapd_id [PATH_MAX] = {0,};
- char msg [1024] = {0,};
-
- this = THIS;
- GF_ASSERT(this);
-
- if (glusterd_is_snapd_running (volinfo)) {
- ret = 0;
- goto connect;
- }
-
- priv = this->private;
-
- glusterd_get_snapd_rundir (volinfo, rundir, sizeof (rundir));
- ret = mkdir (rundir, 0777);
-
- if ((ret == -1) && (EEXIST != errno)) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to create rundir %s",
- rundir);
- goto out;
- }
-
- glusterd_get_snapd_pidfile (volinfo, pidfile, sizeof (pidfile));
- glusterd_get_snapd_volfile (volinfo, volfile, sizeof (volfile));
-
- ret = sys_access (volfile, F_OK);
- if (ret) {
- gf_log (this->name, GF_LOG_DEBUG,
- "snapd Volfile %s is not present", volfile);
-
- /* If glusterd is down on one of the nodes and during
- * that time "USS is enabled" for the first time. After some
- * time when the glusterd which was down comes back it tries
- * to look for the snapd volfile and it does not find snapd
- * volfile and because of this starting of snapd fails.
- * Therefore, if volfile is not present then create a fresh
- * volfile.
- */
- ret = glusterd_create_snapd_volfile (volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Couldn't create "
- "snapd volfile for volume: %s",
- volinfo->volname);
- goto out;
- }
- }
-
- snprintf (logdir, PATH_MAX, "%s/snaps/%s",
- DEFAULT_LOG_FILE_DIRECTORY, volname);
- ret = mkdir_p (logdir, 0755, _gf_true);
- if ((ret == -1) && (EEXIST != errno)) {
- gf_log (this->name, GF_LOG_ERROR, "Unable to create logdir %s",
- logdir);
- goto out;
- }
-
- snprintf (logfile, PATH_MAX, "%s/snapd.log", logdir);
-
- snprintf (volfileid, sizeof (volfileid), "snapd/%s", volname);
- glusterd_set_snapd_socket_filepath (volinfo, sockfpath,
- sizeof (sockfpath));
-
- if (dict_get_str (this->options, "transport.socket.bind-address",
- &volfileserver) != 0) {
- volfileserver = "localhost";
- }
-
- runinit (&runner);
-
- if (priv->valgrind) {
- snprintf (valgrind_logfile, PATH_MAX, "%s/valgrind-snapd.log",
- logdir);
-
- runner_add_args (&runner, "valgrind", "--leak-check=full",
- "--trace-children=yes", "--track-origins=yes",
- NULL);
- runner_argprintf (&runner, "--log-file=%s", valgrind_logfile);
- }
-
- snprintf (snapd_id, sizeof (snapd_id), "snapd-%s", volname);
- runner_add_args (&runner, SBIN_DIR"/glusterfsd",
- "-s", volfileserver,
- "--volfile-id", volfileid,
- "-p", pidfile,
- "-l", logfile,
- "--brick-name", snapd_id,
- "-S", sockfpath, NULL);
-
- snapd_port = volinfo->snapd.port;
- if (!snapd_port) {
- snapd_port = pmap_registry_alloc (THIS);
- if (!snapd_port) {
- snprintf (msg, sizeof (msg), "Could not allocate port "
- "for snapd service for volume %s", volname);
-
- runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
- ret = -1;
- goto out;
- }
- }
-
- runner_add_arg (&runner, "--brick-port");
- runner_argprintf (&runner, "%d", snapd_port);
- runner_add_arg (&runner, "--xlator-option");
- runner_argprintf (&runner, "%s-server.listen-port=%d",
- volname, snapd_port);
-
- snprintf (msg, sizeof (msg),
- "Starting the snapd service for volume %s", volname);
- runner_log (&runner, this->name, GF_LOG_DEBUG, msg);
-
- if (!wait) {
- ret = runner_run_nowait (&runner);
- } else {
- synclock_unlock (&priv->big_lock);
- {
- ret = runner_run (&runner);
- }
- synclock_lock (&priv->big_lock);
- }
-
- volinfo->snapd.port = snapd_port;
-
-connect:
- if (ret == 0)
- glusterd_snapd_connect (volinfo, sockfpath);
-
-out:
- return ret;
-}
-
-int
-glusterd_snapd_stop (glusterd_volinfo_t *volinfo)
-{
- char pidfile [PATH_MAX] = {0,};
- char sockfpath [PATH_MAX] = {0,};
- glusterd_conf_t *priv = THIS->private;
- int ret = 0;
-
- (void)glusterd_snapd_disconnect (volinfo);
-
- if (!glusterd_is_snapd_running (volinfo))
- goto out;
-
- glusterd_get_snapd_pidfile (volinfo, pidfile, sizeof (pidfile));
- ret = glusterd_service_stop ("snapd", pidfile, SIGTERM, _gf_true);
-
- if (ret == 0) {
- glusterd_set_snapd_socket_filepath (volinfo, sockfpath,
- sizeof (sockfpath));
- (void)glusterd_unlink_file (sockfpath);
- }
-out:
- return ret;
-}
-
-int
-glusterd_handle_snapd_option (glusterd_volinfo_t *volinfo)
-{
- int ret = 0;
- xlator_t *this = THIS;
-
- if (volinfo->is_snap_volume)
- return 0;
-
- ret = glusterd_is_snapd_enabled (volinfo);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to read volume "
- "options");
- goto out;
- }
-
- if (ret) {
- if (!glusterd_is_volume_started (volinfo)) {
- if (glusterd_is_snapd_running (volinfo)) {
- ret = glusterd_snapd_stop (volinfo);
- if (ret)
- gf_log (this->name, GF_LOG_ERROR,
- "Couldn't stop snapd for "
- "volume: %s",
- volinfo->volname);
- } else {
- /* Since snapd is not running set ret to 0 */
- ret = 0;
- }
- goto out;
- }
-
- ret = glusterd_create_snapd_volfile (volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Couldn't create "
- "snapd volfile for volume: %s",
- volinfo->volname);
- goto out;
- }
-
- ret = glusterd_snapd_start (volinfo, _gf_false);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Couldn't start "
- "snapd for volume: %s", volinfo->volname);
- goto out;
- }
-
- } else if (glusterd_is_snapd_running (volinfo)) {
- ret = glusterd_snapd_stop (volinfo);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Couldn't stop snapd for volume: %s",
- volinfo->volname);
- goto out;
- }
- volinfo->snapd.port = 0;
- }
-
-out:
- return ret;
-}
-
-int32_t
-glusterd_is_snap_soft_limit_reached (glusterd_volinfo_t *volinfo, dict_t *dict)
-{
- int32_t ret = -1;
- uint64_t opt_max_hard = GLUSTERD_SNAPS_MAX_HARD_LIMIT;
- uint64_t opt_max_soft = GLUSTERD_SNAPS_DEF_SOFT_LIMIT_PERCENT;
- uint64_t limit = 0;
- int auto_delete = 0;
- uint64_t effective_max_limit = 0;
- xlator_t *this = NULL;
- glusterd_conf_t *priv = NULL;
-
- GF_ASSERT (volinfo);
- GF_ASSERT (dict);
-
- this = THIS;
- GF_ASSERT (this);
- priv = this->private;
- GF_ASSERT (priv);
-
- /* config values snap-max-hard-limit and snap-max-soft-limit are
- * optional and hence we are not erroring out if values are not
- * present
- */
- gd_get_snap_conf_values_if_present (priv->opts, &opt_max_hard,
- &opt_max_soft);
-
- /* "auto-delete" might not be set by user explicitly,
- * in that case it's better to consider the default value.
- * Hence not erroring out if Key is not found.
- */
- auto_delete = dict_get_str_boolean (priv->opts,
- GLUSTERD_STORE_KEY_SNAP_AUTO_DELETE,
- _gf_false);
-
- if (volinfo->snap_max_hard_limit < opt_max_hard)
- effective_max_limit = volinfo->snap_max_hard_limit;
- else
- effective_max_limit = opt_max_hard;
-
- limit = (opt_max_soft * effective_max_limit)/100;
-
- if (volinfo->snap_count >= limit && auto_delete != _gf_true) {
- gf_log (this->name, GF_LOG_WARNING, "Soft-limit "
- "(value = %"PRIu64") of volume %s is reached. "
- "Snapshot creation is not possible once effective "
- "hard-limit (value = %"PRIu64") is reached.",
- limit, volinfo->volname, effective_max_limit);
-
- ret = dict_set_int8 (dict, "soft-limit-reach",
- _gf_true);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "Failed to "
- "set soft limit exceed flag in "
- "response dictionary");
- }
- goto out;
- }
- ret = 0;
-out :
- return ret;
-}
-
-/* This function initializes the parameter sys_hard_limit,
- * sys_soft_limit and auto_delete value to the value set
- * in dictionary, If value is not present then it is
- * initialized to default values. Hence this function does not
- * return any values.
- */
-void
-gd_get_snap_conf_values_if_present (dict_t *dict, uint64_t *sys_hard_limit,
- uint64_t *sys_soft_limit)
-{
- xlator_t *this = NULL;
-
- this = THIS;
- GF_ASSERT (this);
-
- GF_ASSERT (dict);
-
- /* "snap-max-hard-limit" might not be set by user explicitly,
- * in that case it's better to consider the default value.
- * Hence not erroring out if Key is not found.
- */
- if (dict_get_uint64 (dict, GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT,
- sys_hard_limit)) {
- gf_log (this->name, GF_LOG_DEBUG, "%s is not present in"
- "dictionary",
- GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT);
- }
-
- /* "snap-max-soft-limit" might not be set by user explicitly,
- * in that case it's better to consider the default value.
- * Hence not erroring out if Key is not found.
- */
- if (dict_get_uint64 (dict, GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT,
- sys_soft_limit)) {
- gf_log (this->name, GF_LOG_DEBUG, "%s is not present in"
- "dictionary",
- GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT);
- }
-}
-
/* This function will update the backend file-system
* type and the mount options in origin and snap brickinfo.
* This will be later used to perform file-system specific operation
@@ -13699,8 +10058,8 @@ glusterd_update_mntopts (char *brick_path, glusterd_brickinfo_t *brickinfo)
{
int32_t ret = -1;
char *mnt_pt = NULL;
- char buff [PATH_MAX] = "";
- char msg [PATH_MAX] = "";
+ char buff[PATH_MAX] = "";
+ char msg[PATH_MAX] = "";
char *cmd = NULL;
struct mntent *entry = NULL;
struct mntent save_entry = {0,};
@@ -14081,35 +10440,3 @@ glusterd_op_clear_xaction_peers ()
}
}
-
-gf_boolean_t
-mntopts_exists (const char *str, const char *opts)
-{
- char *dup_val = NULL;
- char *savetok = NULL;
- char *token = NULL;
- gf_boolean_t exists = _gf_false;
-
- GF_ASSERT (opts);
-
- if (!str || !strlen(str))
- goto out;
-
- dup_val = gf_strdup (str);
- if (!dup_val)
- goto out;
-
- token = strtok_r (dup_val, ",", &savetok);
- while (token) {
- if (!strcmp (token, opts)) {
- exists = _gf_true;
- goto out;
- }
- token = strtok_r (NULL, ",", &savetok);
- }
-
-out:
- GF_FREE (dup_val);
- return exists;
-}
-
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.h b/xlators/mgmt/glusterd/src/glusterd-utils.h
index 78a44fda6c7..4062cf1764b 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.h
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.h
@@ -126,23 +126,11 @@ int32_t
glusterd_brickinfo_new_from_brick (char *brick, glusterd_brickinfo_t **brickinfo);
int32_t
-glusterd_snap_volinfo_find (char *volname, glusterd_snap_t *snap,
- glusterd_volinfo_t **volinfo);
-int32_t
-glusterd_snap_volinfo_find_from_parent_volname (char *origin_volname,
- glusterd_snap_t *snap,
- glusterd_volinfo_t **volinfo);
-
-int32_t
glusterd_volinfo_find (char *volname, glusterd_volinfo_t **volinfo);
int
glusterd_volinfo_find_by_volume_id (uuid_t volume_id, glusterd_volinfo_t **volinfo);
-int
-glusterd_snap_volinfo_find_by_volume_id (uuid_t volume_id,
- glusterd_volinfo_t **volinfo);
-
int32_t
glusterd_service_stop(const char *service, char *pidfile, int sig,
gf_boolean_t force_kill);
@@ -427,10 +415,6 @@ glusterd_add_brick_to_dict (glusterd_volinfo_t *volinfo,
dict_t *dict, int32_t count);
int32_t
-glusterd_add_snapd_to_dict (glusterd_volinfo_t *volinfo,
- dict_t *dict, int32_t count);
-
-int32_t
glusterd_get_all_volnames (dict_t *dict);
gf_boolean_t
@@ -525,8 +509,6 @@ int
glusterd_use_rsp_dict (dict_t *aggr, dict_t *rsp_dict);
int
glusterd_sys_exec_output_rsp_dict (dict_t *aggr, dict_t *rsp_dict);
-int
-glusterd_snap_use_rsp_dict (dict_t *aggr, dict_t *rsp_dict);
int32_t
glusterd_handle_node_rsp (dict_t *req_ctx, void *pending_entry,
glusterd_op_t op, dict_t *rsp_dict, dict_t *op_ctx,
@@ -686,93 +668,12 @@ glusterd_get_mnt_entry_info (char *mnt_pt, char *buff, int buflen,
int
glusterd_get_brick_root (char *path, char **mount_point);
-
-int
-glusterd_compare_snap_time(struct list_head *, struct list_head *);
-
-int
-glusterd_compare_snap_vol_time(struct list_head *, struct list_head *);
-
-int32_t
-glusterd_snap_volinfo_restore (dict_t *dict, dict_t *rsp_dict,
- glusterd_volinfo_t *new_volinfo,
- glusterd_volinfo_t *snap_volinfo,
- int32_t volcount);
-
int32_t
glusterd_lvm_snapshot_remove (dict_t *rsp_dict, glusterd_volinfo_t *snap_vol);
-int32_t
-glusterd_missed_snapinfo_new (glusterd_missed_snap_info **missed_snapinfo);
-
-int32_t
-glusterd_missed_snap_op_new (glusterd_snap_op_t **snap_op);
-
-int32_t
-glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict,
- glusterd_volinfo_t *snap_vol,
- glusterd_brickinfo_t *brickinfo,
- int32_t brick_number, int32_t op);
-
-int32_t
-glusterd_add_missed_snaps_to_export_dict (dict_t *peer_data);
-
-int32_t
-glusterd_import_friend_missed_snap_list (dict_t *peer_data);
-
-int
-gd_restore_snap_volume (dict_t *dict, dict_t *rsp_dict,
- glusterd_volinfo_t *orig_vol,
- glusterd_volinfo_t *snap_vol,
- int32_t volcount);
-
-int32_t
-glusterd_mount_lvm_snapshot (glusterd_brickinfo_t *brickinfo,
- char *brick_mount_path);
-
-int32_t
-glusterd_umount (const char *path);
-
-int32_t
-glusterd_add_snapshots_to_export_dict (dict_t *peer_data);
-
-int32_t
-glusterd_compare_friend_snapshots (dict_t *peer_data,
- glusterd_peerinfo_t *peerinfo);
-
-int32_t
-glusterd_snapobject_delete (glusterd_snap_t *snap);
-
-int32_t
-glusterd_snap_volume_remove (dict_t *rsp_dict,
- glusterd_volinfo_t *snap_vol,
- gf_boolean_t remove_lvm,
- gf_boolean_t force);
-
-int32_t
-glusterd_store_create_snap_dir (glusterd_snap_t *snap);
-
-int32_t
-glusterd_copy_file (const char *source, const char *destination);
-
-int32_t
-glusterd_copy_folder (const char *source, const char *destination);
-
-int32_t
-glusterd_get_geo_rep_session (char *slave_key, char *origin_volname,
- dict_t *gsync_slaves_dict, char *session,
- char *slave);
-
-int32_t
-glusterd_restore_geo_rep_files (glusterd_volinfo_t *snap_vol);
-
gf_boolean_t
gd_vol_is_geo_rep_active (glusterd_volinfo_t *volinfo);
-int32_t
-glusterd_copy_quota_files (glusterd_volinfo_t *src_vol,
- glusterd_volinfo_t *dest_vol);
-
int
glusterd_recursive_rmdir (const char *delete_path);
@@ -786,36 +687,6 @@ int32_t
glusterd_take_lvm_snapshot (glusterd_brickinfo_t *brickinfo,
char *origin_brick_path);
-int32_t
-glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct list_head *peers_list);
-
-int32_t
-glusterd_snap_quorum_check_for_create (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct list_head *peers_list);
-
-int32_t
-glusterd_volume_quorum_check (glusterd_volinfo_t *volinfo, int64_t index,
- dict_t *dict, char *key_prefix,
- int8_t snap_force, int32_t quorum_count,
- char *quorum_type, char **op_errstr);
-
-gf_boolean_t
-glusterd_volume_quorum_calculate (glusterd_volinfo_t *volinfo, dict_t *dict,
- int down_count, gf_boolean_t first_brick_on,
- int8_t snap_force, int32_t quorum_count,
- char *quorum_type, char **op_errstr);
-
-int
-glusterd_merge_brick_status (dict_t *dst, dict_t *src);
-
-int32_t
-glusterd_snap_brick_create (glusterd_volinfo_t *snap_volinfo,
- glusterd_brickinfo_t *brickinfo,
- int32_t brick_count);
-
void
glusterd_launch_synctask (synctask_fn_t fn, void *opaque);
@@ -823,70 +694,8 @@ int
glusterd_enable_default_options (glusterd_volinfo_t *volinfo, char *option);
int
-glusterd_snapshot_restore_cleanup (dict_t *rsp_dict,
- glusterd_volinfo_t *volinfo,
- glusterd_snap_t *snap);
-
-int
glusterd_unlink_file (char *sock_file_path);
-/* Snapd functions */
-int
-glusterd_handle_snapd_option (glusterd_volinfo_t *volinfo);
-
-int32_t
-glusterd_snapd_disconnect (glusterd_volinfo_t *volinfo);
-
-void
-glusterd_get_snapd_dir (glusterd_volinfo_t *volinfo,
- char *path, int path_len);
-
-void
-glusterd_get_snapd_rundir (glusterd_volinfo_t *volinfo,
- char *path, int path_len);
-
-void
-glusterd_get_snapd_volfile (glusterd_volinfo_t *volinfo,
- char *path, int path_len);
-
-void
-glusterd_get_snapd_pidfile (glusterd_volinfo_t *volinfo,
- char *path, int path_len);
-
-void
-glusterd_set_snapd_socket_filepath (glusterd_volinfo_t *volinfo,
- char *path, int path_len);
-
-gf_boolean_t
-glusterd_is_snapd_running (glusterd_volinfo_t *volinfo);
-
-int
-glusterd_snapd_stop (glusterd_volinfo_t *volinfo);
-
-int
-glusterd_snapd_start (glusterd_volinfo_t *volinfo, gf_boolean_t wait);
-
-int
-glusterd_is_snapd_enabled (glusterd_volinfo_t *volinfo);
-
-gf_boolean_t
-glusterd_is_snapd_online (glusterd_volinfo_t *volinfo);
-
-void
-glusterd_snapd_set_online_status (glusterd_volinfo_t *volinfo,
- gf_boolean_t status);
-
-int
-glusterd_restart_snapds (glusterd_conf_t *priv);
-/* End snapd functions */
-
-int32_t
-glusterd_check_and_set_config_limit (glusterd_conf_t *priv);
-
-int32_t
-glusterd_is_snap_soft_limit_reached (glusterd_volinfo_t *volinfo,
- dict_t *dict);
-
int32_t
glusterd_find_brick_mount_path (char *brick_path, int32_t brick_count,
char **brick_mount_path);
@@ -902,17 +711,13 @@ glusterd_update_mntopts (char *brick_path, glusterd_brickinfo_t *brickinfo);
int
glusterd_update_fs_label (glusterd_brickinfo_t *brickinfo);
-void
-gd_get_snap_conf_values_if_present (dict_t *opts, uint64_t *sys_hard_limit,
- uint64_t *sys_soft_limit);
-
int
glusterd_get_volopt_content (dict_t *dict, gf_boolean_t xml_out);
int
glusterd_get_default_val_for_volopt (dict_t *dict, gf_boolean_t all_opts,
- char *key, char *orig_key,
- dict_t *vol_dict, char **err_str);
+ char *key, char *orig_key,
+ dict_t *vol_dict, char **err_str);
int
glusterd_check_client_op_version_support (char *volname, uint32_t op_version,
@@ -924,10 +729,25 @@ glusterd_have_peers ();
void
glusterd_op_clear_xaction_peers ();
-gf_boolean_t
-mntopts_exists (const char *str, const char *opts);
-
void
glusterd_get_rebalance_volfile (glusterd_volinfo_t *volinfo,
char *path, int path_len);
+
+int32_t
+glusterd_brickinfo_dup (glusterd_brickinfo_t *brickinfo,
+ glusterd_brickinfo_t *dup_brickinfo);
+
+int
+glusterd_vol_add_quota_conf_to_dict (glusterd_volinfo_t *volinfo, dict_t *load,
+ int vol_idx, char *prefix);
+
+int32_t
+glusterd_import_volinfo (dict_t *peer_data, int count,
+ glusterd_volinfo_t **volinfo,
+ char *prefix);
+
+int
+glusterd_import_quota_conf (dict_t *peer_data, int vol_idx,
+ glusterd_volinfo_t *new_volinfo,
+ char *prefix);
#endif
diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c
index b0c82632c45..37b3677e68b 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volgen.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c
@@ -34,6 +34,7 @@
#include "glusterd-utils.h"
#include "run.h"
#include "options.h"
+#include "glusterd-snapshot-utils.h"
extern struct volopt_map_entry glusterd_volopt_map[];
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
index 10a6920ff32..9ac489d5070 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
@@ -27,6 +27,7 @@
#include "glusterd-volgen.h"
#include "glusterd-messages.h"
#include "run.h"
+#include "glusterd-snapshot-utils.h"
#include <stdint.h>
#include <sys/socket.h>
generated by cgit (git 2.34.1) at 2025-11-04 10:27:33 +0000