summaryrefslogtreecommitdiffstats
path: root/xlators/mgmt/glusterd/src/glusterd-snapshot.c
diff options
context:
space:
mode:
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-snapshot.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot.c565
1 files changed, 379 insertions, 186 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot.c b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
index d11abee..0e824a0 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
@@ -18,6 +18,14 @@
#include <sys/resource.h>
#include <sys/statvfs.h>
#include <sys/mount.h>
+#include <signal.h>
+
+
+#if !defined(__NetBSD__) && !defined(GF_DARWIN_HOST_OS)
+#include <mntent.h>
+#else
+#include "mntent_compat.h"
+#endif
#include "globals.h"
#include "compat.h"
@@ -40,16 +48,70 @@
#include "cli1-xdr.h"
#include "xdr-generic.h"
-#ifdef GF_LINUX_HOST_OS
-#include <mntent.h>
-#endif
+#include "lvm-defaults.h"
char snap_mount_folder[PATH_MAX];
+/* Look for disconnected peers, for missed snap creates or deletes */
static int32_t
glusterd_find_missed_snap (dict_t *rsp_dict, glusterd_volinfo_t *vol,
- char *snap_uuid, struct list_head *peers,
- int32_t op);
+ struct list_head *peers, int32_t op)
+{
+ int32_t brick_count = -1;
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_peerinfo_t *peerinfo = NULL;
+ glusterd_brickinfo_t *brickinfo = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (rsp_dict);
+ GF_ASSERT (peers);
+ GF_ASSERT (vol);
+
+ brick_count = 0;
+ list_for_each_entry (brickinfo, &vol->bricks, brick_list) {
+ if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
+ /* If the brick belongs to the same node */
+ brick_count++;
+ continue;
+ }
+
+ list_for_each_entry (peerinfo, peers, uuid_list) {
+ if (uuid_compare (peerinfo->uuid, brickinfo->uuid)) {
+ /* If the brick doesnt belong to this peer */
+ continue;
+ }
+
+ /* Found peer who owns the brick, *
+ * if peer is not connected or not *
+ * friend add it to missed snap list */
+ if (!(peerinfo->connected) ||
+ (peerinfo->state.state !=
+ GD_FRIEND_STATE_BEFRIENDED)) {
+ ret = glusterd_add_missed_snaps_to_dict
+ (rsp_dict,
+ vol, brickinfo,
+ brick_count + 1,
+ op);
+ 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;
+ }
+ }
+ }
+ brick_count++;
+ }
+
+ ret = 0;
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
/* This function will restore a snapshot volumes
*
@@ -62,7 +124,6 @@ int
glusterd_snapshot_restore (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
{
int ret = -1;
- char *volname = NULL;
char *snapname = NULL;
xlator_t *this = NULL;
glusterd_volinfo_t *snap_volinfo = NULL;
@@ -90,7 +151,7 @@ glusterd_snapshot_restore (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
snap = glusterd_find_snap_by_name (snapname);
if (NULL == snap) {
ret = gf_asprintf (op_errstr, "Snap (%s) not found",
- snapname);
+ snapname);
if (ret < 0) {
goto out;
}
@@ -99,6 +160,7 @@ glusterd_snapshot_restore (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
goto out;
}
+
/* TODO : As of now there is only volume in snapshot.
* Change this when multiple volume snapshot is introduced
*/
@@ -116,7 +178,6 @@ glusterd_snapshot_restore (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
/* From origin glusterd check if *
* any peers with snap bricks is down */
ret = glusterd_find_missed_snap (rsp_dict, snap_volinfo,
- snap_volinfo->volname,
&priv->peers,
GF_SNAP_OPTION_TYPE_RESTORE);
if (ret) {
@@ -133,7 +194,7 @@ glusterd_snapshot_restore (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
* failure.
*/
gf_log (this->name, GF_LOG_ERROR, "Failed to restore "
- "snap for %s volume", volname);
+ "snap for %s", snapname);
goto out;
}
@@ -156,7 +217,7 @@ out:
* @param rsp_dict response dictionary
* @return Negative value on Failure and 0 in success
*/
-int
+int32_t
glusterd_snapshot_restore_prevalidate (dict_t *dict, char **op_errstr,
dict_t *rsp_dict)
{
@@ -267,7 +328,7 @@ out:
int
snap_max_hard_limits_validate (dict_t *dict, char *volname,
- uint64_t value, char **op_errstr)
+ uint64_t value, char **op_errstr)
{
char err_str[PATH_MAX] = "";
glusterd_conf_t *conf = NULL;
@@ -449,7 +510,7 @@ glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
for (i = 0; i < volume_count; i++) {
memset (snapbrckcnt, '\0', sizeof(snapbrckcnt));
ret = snprintf (snapbrckcnt, sizeof(snapbrckcnt) - 1,
- "vol%ld_brickcount", i+1);
+ "vol%"PRId64"_brickcount", i+1);
ret = dict_get_int64 (src, snapbrckcnt, &brick_count);
if (ret) {
gf_log (this->name, GF_LOG_TRACE,
@@ -460,7 +521,7 @@ glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
for (j = 0; j < brick_count; j++) {
/* Fetching data from source dict */
snprintf (key, sizeof(key) - 1,
- "vol%ld.brickdir%ld", i+1, j);
+ "vol%"PRId64".brickdir%"PRId64, i+1, j);
ret = dict_get_ptr (src, key,
(void **)&snap_brick_dir);
@@ -471,7 +532,7 @@ glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
}
snprintf (key, sizeof(key) - 1,
- "vol%ld.brick_snapdevice%ld", i+1, j);
+ "vol%"PRId64".brick_snapdevice%"PRId64, i+1, j);
ret = dict_get_ptr (src, key,
(void **)&snap_device);
@@ -482,7 +543,7 @@ glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
}
snprintf (snapbrckord, sizeof(snapbrckord) - 1,
- "vol%ld.brick%ld.order", i+1, j);
+ "vol%"PRId64".brick%"PRId64".order", i+1, j);
ret = dict_get_int64 (src, snapbrckord, &brick_order);
if (ret) {
@@ -493,7 +554,7 @@ glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
/* Adding the data in the dst dict */
snprintf (key, sizeof(key) - 1,
- "vol%ld.brickdir%ld", i+1, brick_order);
+ "vol%"PRId64".brickdir%"PRId64, i+1, brick_order);
tmpstr = gf_strdup (snap_brick_dir);
if (!tmpstr) {
@@ -511,7 +572,7 @@ glusterd_snap_create_pre_val_use_rsp_dict (dict_t *dst, dict_t *src)
}
snprintf (key, sizeof(key) - 1,
- "vol%ld.brick_snapdevice%ld",
+ "vol%"PRId64".brick_snapdevice%"PRId64,
i+1, brick_order);
tmpstr = gf_strdup (snap_device);
@@ -618,8 +679,8 @@ glusterd_snapshot_create_prevalidate (dict_t *dict, char **op_errstr,
goto out;
}
if (volcount <= 0) {
- snprintf (err_str, sizeof (err_str), "Invalid volume count %ld "
- "supplied", volcount);
+ snprintf (err_str, sizeof (err_str), "Invalid volume count %"PRId64
+ " supplied", volcount);
ret = -1;
goto out;
}
@@ -638,7 +699,7 @@ glusterd_snapshot_create_prevalidate (dict_t *dict, char **op_errstr,
}
for (i = 1; i <= volcount; i++) {
- snprintf (key, sizeof (key), "volname%ld", i);
+ snprintf (key, sizeof (key), "volname%"PRId64, i);
ret = dict_get_str (dict, key, &volname);
if (ret) {
snprintf (err_str, sizeof (err_str),
@@ -690,7 +751,7 @@ glusterd_snapshot_create_prevalidate (dict_t *dict, char **op_errstr,
goto out;
}
- snprintf (key, sizeof(key) - 1, "vol%ld_volid", i);
+ snprintf (key, sizeof(key) - 1, "vol%"PRId64"_volid", i);
ret = dict_get_bin (dict, key, (void **)&snap_volid);
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
@@ -745,7 +806,7 @@ glusterd_snapshot_create_prevalidate (dict_t *dict, char **op_errstr,
}
snprintf (key, sizeof(key),
- "vol%ld.brick_snapdevice%ld", i,
+ "vol%"PRId64".brick_snapdevice%"PRId64, i,
brick_count);
ret = dict_set_dynstr (rsp_dict, key, device);
if (ret) {
@@ -783,7 +844,7 @@ glusterd_snapshot_create_prevalidate (dict_t *dict, char **op_errstr,
ret = -1;
goto out;
}
- snprintf (key, sizeof(key), "vol%ld.brickdir%ld", i,
+ snprintf (key, sizeof(key), "vol%"PRId64".brickdir%"PRId64, i,
brick_count);
ret = dict_set_dynstr (rsp_dict, key, tmpstr);
if (ret) {
@@ -793,7 +854,7 @@ glusterd_snapshot_create_prevalidate (dict_t *dict, char **op_errstr,
}
tmpstr = NULL;
- snprintf (key, sizeof(key) - 1, "vol%ld.brick%ld.order",
+ snprintf (key, sizeof(key) - 1, "vol%"PRId64".brick%"PRId64".order",
i, brick_count);
ret = dict_set_int64 (rsp_dict, key, brick_order);
if (ret) {
@@ -805,7 +866,7 @@ glusterd_snapshot_create_prevalidate (dict_t *dict, char **op_errstr,
brick_count++;
brick_order++;
}
- snprintf (key, sizeof(key) - 1, "vol%ld_brickcount", i);
+ snprintf (key, sizeof(key) - 1, "vol%"PRId64"_brickcount", i);
ret = dict_set_int64 (rsp_dict, key, brick_count);
if (ret) {
gf_log (this->name, GF_LOG_ERROR, "Failed to set %s",
@@ -1002,7 +1063,7 @@ glusterd_do_lvm_snapshot_remove (glusterd_volinfo_t *snap_vol,
snprintf (msg, sizeof(msg), "remove snapshot of the brick %s:%s, "
"device: %s", brickinfo->hostname, brickinfo->path,
snap_device);
- runner_add_args (&runner, "/sbin/lvremove", "-f", snap_device, NULL);
+ runner_add_args (&runner, LVM_REMOVE, "-f", snap_device, NULL);
runner_log (&runner, "", GF_LOG_DEBUG, msg);
ret = runner_run (&runner);
@@ -1030,19 +1091,25 @@ glusterd_lvm_snapshot_remove (dict_t *rsp_dict, glusterd_volinfo_t *snap_vol)
this = THIS;
GF_ASSERT (this);
- GF_ASSERT (rsp_dict);
GF_ASSERT (snap_vol);
- if (!snap_vol) {
- gf_log (this->name, GF_LOG_ERROR, "snap volinfo is NULL");
+ if ((snap_vol->is_snap_volume == _gf_false) &&
+ (uuid_is_null (snap_vol->restored_from_snap))) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "Not a snap volume, or a restored snap volume.");
+ ret = 0;
goto out;
}
brick_count = -1;
list_for_each_entry (brickinfo, &snap_vol->bricks, brick_list) {
brick_count++;
- if (uuid_compare (brickinfo->uuid, MY_UUID))
+ if (uuid_compare (brickinfo->uuid, MY_UUID)) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "%s:%s belongs to a different node",
+ brickinfo->hostname, brickinfo->path);
continue;
+ }
if (brickinfo->snap_status == -1) {
gf_log (this->name, GF_LOG_INFO,
@@ -1051,20 +1118,23 @@ glusterd_lvm_snapshot_remove (dict_t *rsp_dict, glusterd_volinfo_t *snap_vol)
brickinfo->hostname, brickinfo->path,
snap_vol->snapshot->snapname);
- /* Adding missed delete to the dict */
- ret = glusterd_add_missed_snaps_to_dict
+ if (rsp_dict &&
+ (snap_vol->is_snap_volume == _gf_true)) {
+ /* Adding missed delete to the dict */
+ ret = glusterd_add_missed_snaps_to_dict
(rsp_dict,
- snap_vol->volname,
+ snap_vol,
brickinfo,
brick_count + 1,
GF_SNAP_OPTION_TYPE_DELETE);
- 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;
+ 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;
+ }
}
continue;
@@ -1104,6 +1174,7 @@ glusterd_lvm_snapshot_remove (dict_t *rsp_dict, glusterd_volinfo_t *snap_vol)
ret = 0;
out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
return ret;
}
@@ -2047,8 +2118,8 @@ glusterd_handle_snapshot_create (rpcsvc_request_t *req, glusterd_op_t op,
goto out;
}
if (volcount <= 0) {
- gf_log (this->name, GF_LOG_ERROR, "Invalid volume count %ld "
- "supplied", volcount);
+ gf_log (this->name, GF_LOG_ERROR, "Invalid volume count %"PRId64
+ " supplied", volcount);
ret = -1;
goto out;
}
@@ -2476,7 +2547,7 @@ glusterd_create_snap_object (dict_t *dict, dict_t *rsp_dict)
}
if (time_stamp <= 0) {
ret = -1;
- gf_log (this->name, GF_LOG_ERROR, "Invalid time-stamp: %ld",
+ gf_log (this->name, GF_LOG_ERROR, "Invalid time-stamp: %"PRId64,
time_stamp);
goto out;
}
@@ -2550,11 +2621,12 @@ out:
/* Added missed_snap_entry to rsp_dict */
int32_t
-glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
+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)
{
- char *buf = NULL;
+ char *snap_uuid = NULL;
char missed_snap_entry[PATH_MAX] = "";
char name_buf[PATH_MAX] = "";
int32_t missed_snap_count = -1;
@@ -2564,20 +2636,20 @@ glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
this = THIS;
GF_ASSERT (this);
GF_ASSERT (rsp_dict);
- GF_ASSERT (snap_uuid);
+ GF_ASSERT (snap_vol);
GF_ASSERT (brickinfo);
- snprintf (missed_snap_entry, sizeof(missed_snap_entry),
- "%s:%s=%d:%s:%d:%d", uuid_utoa(brickinfo->uuid),
- snap_uuid, brick_number, brickinfo->path, op,
- GD_MISSED_SNAP_PENDING);
-
- buf = gf_strdup (missed_snap_entry);
- if (!buf) {
+ snap_uuid = gf_strdup (uuid_utoa (snap_vol->snapshot->snap_id));
+ if (!snap_uuid) {
ret = -1;
goto out;
}
+ snprintf (missed_snap_entry, sizeof(missed_snap_entry),
+ "%s:%s=%s:%d:%s:%d:%d", uuid_utoa(brickinfo->uuid),
+ snap_uuid, snap_vol->volname, brick_number, brickinfo->path,
+ op, GD_MISSED_SNAP_PENDING);
+
/* Fetch the missed_snap_count from the dict */
ret = dict_get_int32 (rsp_dict, "missed_snap_count",
&missed_snap_count);
@@ -2589,12 +2661,12 @@ glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
/* Setting the missed_snap_entry in the rsp_dict */
snprintf (name_buf, sizeof(name_buf), "missed_snaps_%d",
missed_snap_count);
- ret = dict_set_dynstr (rsp_dict, name_buf, buf);
+ ret = dict_set_dynstr_with_alloc (rsp_dict, name_buf,
+ missed_snap_entry);
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to set missed_snap_entry (%s) "
- "in the rsp_dict.", buf);
- GF_FREE (buf);
+ "in the rsp_dict.", missed_snap_entry);
goto out;
}
missed_snap_count++;
@@ -2610,6 +2682,9 @@ glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
}
out:
+ if (snap_uuid)
+ GF_FREE (snap_uuid);
+
gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
return ret;
}
@@ -2715,7 +2790,7 @@ glusterd_take_lvm_snapshot (glusterd_volinfo_t *snap_vol,
/* Figuring out if setactivationskip flag is supported or not */
runinit (&runner);
snprintf (msg, sizeof (msg), "running lvcreate help");
- runner_add_args (&runner, "/sbin/lvcreate", "--help", NULL);
+ runner_add_args (&runner, LVM_CREATE, "--help", NULL);
runner_log (&runner, "", GF_LOG_DEBUG, msg);
runner_redir (&runner, STDOUT_FILENO, RUN_PIPE);
ret = runner_start (&runner);
@@ -2744,11 +2819,11 @@ glusterd_take_lvm_snapshot (glusterd_volinfo_t *snap_vol,
snprintf (msg, sizeof (msg), "taking snapshot of the brick %s:%s",
brickinfo->hostname, brickinfo->path);
if (match == _gf_true)
- runner_add_args (&runner, "/sbin/lvcreate", "-s", device,
+ runner_add_args (&runner, LVM_CREATE, "-s", device,
"--setactivationskip", "n", "--name",
snap_vol->volname, NULL);
else
- runner_add_args (&runner, "/sbin/lvcreate", "-s", device,
+ runner_add_args (&runner, LVM_CREATE, "-s", device,
"--name", snap_vol->volname, NULL);
runner_log (&runner, "", GF_LOG_DEBUG, msg);
ret = runner_start (&runner);
@@ -2785,9 +2860,7 @@ glusterd_snap_brick_create (char *device, glusterd_volinfo_t *snap_volinfo,
glusterd_conf_t *priv = NULL;
char snap_brick_mount_path[PATH_MAX] = "";
char snap_brick_path[PATH_MAX] = "";
- char msg[1024] = "";
struct stat statbuf = {0, };
- runner_t runner = {0, };
this = THIS;
priv = this->private;
@@ -2818,25 +2891,12 @@ glusterd_snap_brick_create (char *device, glusterd_volinfo_t *snap_volinfo,
MS_MGC_VAL, "nouuid");
But for now, mounting using runner apis.
*/
- runinit (&runner);
- snprintf (msg, sizeof (msg), "mounting snapshot of the brick %s:%s",
- original_brickinfo->hostname, original_brickinfo->path);
- runner_add_args (&runner, "mount", "-o", "nouuid", device,
- snap_brick_mount_path, NULL);
- runner_log (&runner, "", GF_LOG_DEBUG, msg);
-
- /* let glusterd get blocked till snapshot is over */
- synclock_unlock (&priv->big_lock);
- ret = runner_run (&runner);
- synclock_lock (&priv->big_lock);
+ ret = glusterd_mount_lvm_snapshot (device, snap_brick_mount_path);
if (ret) {
- gf_log (this->name, GF_LOG_ERROR, "mounting the snapshot "
- "logical device %s failed (error: %s)", device,
- strerror (errno));
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to mount lvm snapshot.");
goto out;
- } else
- gf_log (this->name, GF_LOG_DEBUG, "mounting the snapshot "
- "logical device %s successful", device);
+ }
ret = stat (snap_brick_path, &statbuf);
if (ret) {
@@ -2862,7 +2922,11 @@ out:
if (ret) {
gf_log (this->name, GF_LOG_WARNING, "unmounting the snap brick"
" mount %s", snap_brick_mount_path);
+#if !defined(GF_DARWIN_HOST_OS)
umount (snap_brick_mount_path);
+#else
+ unmount (snap_brick_mount_path, 0);
+#endif
}
gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
@@ -2893,7 +2957,7 @@ glusterd_add_bricks_to_snap_volume (dict_t *dict, dict_t *rsp_dict,
GF_ASSERT (snap_brickinfo);
GF_ASSERT (snap_brick_dir);
- snprintf (key, sizeof(key) - 1, "vol%ld.brickdir%d", volcount,
+ snprintf (key, sizeof(key) - 1, "vol%"PRId64".brickdir%d", volcount,
brick_count);
ret = dict_get_ptr (dict, key, (void **)snap_brick_dir);
if (ret) {
@@ -2938,7 +3002,7 @@ glusterd_add_bricks_to_snap_volume (dict_t *dict, dict_t *rsp_dict,
if (add_missed_snap) {
ret = glusterd_add_missed_snaps_to_dict (rsp_dict,
- snap_vol->volname,
+ snap_vol,
original_brickinfo,
brick_count + 1,
GF_SNAP_OPTION_TYPE_CREATE);
@@ -2951,7 +3015,7 @@ glusterd_add_bricks_to_snap_volume (dict_t *dict, dict_t *rsp_dict,
}
}
- snprintf (key, sizeof(key), "vol%ld.brick_snapdevice%d",
+ snprintf (key, sizeof(key), "vol%"PRId64".brick_snapdevice%d",
volcount, brick_count);
ret = dict_get_ptr (dict, key, (void **)&snap_device);
if (ret) {
@@ -3038,70 +3102,6 @@ out:
return ret;
}
-/* Look for disconnected peers, for missed snap creates or deletes */
-static int32_t
-glusterd_find_missed_snap (dict_t *rsp_dict, glusterd_volinfo_t *vol,
- char *snap_uuid, struct list_head *peers,
- int32_t op)
-{
- int32_t brick_count = -1;
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_peerinfo_t *peerinfo = NULL;
- glusterd_brickinfo_t *brickinfo = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (rsp_dict);
- GF_ASSERT (peers);
- GF_ASSERT (vol);
- GF_ASSERT (snap_uuid);
-
- brick_count = 0;
- list_for_each_entry (brickinfo, &vol->bricks, brick_list) {
- if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
- /* If the brick belongs to the same node */
- brick_count++;
- continue;
- }
-
- list_for_each_entry (peerinfo, peers, uuid_list) {
- if (uuid_compare (peerinfo->uuid, brickinfo->uuid)) {
- /* If the brick doesnt belong to this peer */
- continue;
- }
-
- /* Found peer who owns the brick, *
- * if peer is not connected or not *
- * friend add it to missed snap list */
- if (!(peerinfo->connected) ||
- (peerinfo->state.state !=
- GD_FRIEND_STATE_BEFRIENDED)) {
- ret = glusterd_add_missed_snaps_to_dict
- (rsp_dict,
- snap_uuid,
- brickinfo,
- brick_count + 1,
- op);
- 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;
- }
- }
- }
- brick_count++;
- }
-
- ret = 0;
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
glusterd_volinfo_t *
glusterd_do_snap_vol (glusterd_volinfo_t *origin_vol, glusterd_snap_t *snap,
dict_t *dict, dict_t *rsp_dict, int64_t volcount)
@@ -3129,7 +3129,7 @@ glusterd_do_snap_vol (glusterd_volinfo_t *origin_vol, glusterd_snap_t *snap,
GF_ASSERT (rsp_dict);
/* fetch username, password and vol_id from dict*/
- snprintf (key, sizeof(key), "volume%ld_username", volcount);
+ snprintf (key, sizeof(key), "volume%"PRId64"_username", volcount);
ret = dict_get_str (dict, key, &username);
if (ret) {
gf_log (this->name, GF_LOG_ERROR, "Failed to get %s for "
@@ -3137,7 +3137,7 @@ glusterd_do_snap_vol (glusterd_volinfo_t *origin_vol, glusterd_snap_t *snap,
goto out;
}
- snprintf (key, sizeof(key), "volume%ld_password", volcount);
+ snprintf (key, sizeof(key), "volume%"PRId64"_password", volcount);
ret = dict_get_str (dict, key, &password);
if (ret) {
gf_log (this->name, GF_LOG_ERROR, "Failed to get %s for "
@@ -3145,7 +3145,7 @@ glusterd_do_snap_vol (glusterd_volinfo_t *origin_vol, glusterd_snap_t *snap,
goto out;
}
- snprintf (key, sizeof(key) - 1, "vol%ld_volid", volcount);
+ snprintf (key, sizeof(key) - 1, "vol%"PRId64"_volid", volcount);
ret = dict_get_bin (dict, key, (void **)&snap_volid);
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
@@ -3367,7 +3367,7 @@ glusterd_handle_snapshot_remove (rpcsvc_request_t *req, glusterd_op_t op,
goto out;
}
- snprintf (key, sizeof (key), "volname%ld", volcount);
+ snprintf (key, sizeof (key), "volname%"PRId64, volcount);
ret = dict_set_dynstr (dict, key, volname);
if (ret) {
gf_log (this->name, GF_LOG_ERROR, "Failed to set "
@@ -3582,7 +3582,6 @@ glusterd_snapshot_remove_commit (dict_t *dict, char **op_errstr,
/* From origin glusterd check if *
* any peers with snap bricks is down */
ret = glusterd_find_missed_snap (rsp_dict, snap_volinfo,
- snap_volinfo->volname,
&priv->peers,
GF_SNAP_OPTION_TYPE_DELETE);
if (ret) {
@@ -3697,7 +3696,14 @@ glusterd_snapshot_update_snaps_post_validate (dict_t *dict, char **op_errstr,
goto out;
}
- ret = glusterd_store_update_missed_snaps (dict, missed_snap_count);
+ ret = glusterd_add_missed_snaps_to_list (dict, missed_snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add missed snaps to list");
+ goto out;
+ }
+
+ ret = glusterd_store_update_missed_snaps ();
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to update missed_snaps_list");
@@ -3771,7 +3777,7 @@ glusterd_snapshot_create_commit (dict_t *dict, char **op_errstr,
}
for (i = 1; i <= volcount; i++) {
- snprintf (key, sizeof (key), "volname%ld", i);
+ snprintf (key, sizeof (key), "volname%"PRId64, i);
ret = dict_get_str (dict, key, &volname);
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
@@ -3922,7 +3928,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
soft_limit_value = (active_hard_limit *
conf->snap_max_soft_limit) / 100;
- snprintf (buf, sizeof(buf), "volume%ld-volname", count);
+ snprintf (buf, sizeof(buf), "volume%"PRIu64"-volname", count);
ret = dict_set_str (rsp_dict, buf, volinfo->volname);
if (ret) {
snprintf (err_str, PATH_MAX,
@@ -3931,7 +3937,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
}
snprintf (buf, sizeof(buf),
- "volume%ld-snap-max-hard-limit", count);
+ "volume%"PRIu64"-snap-max-hard-limit", count);
ret = dict_set_uint64 (rsp_dict, buf, snap_max_limit);
if (ret) {
snprintf (err_str, PATH_MAX,
@@ -3940,7 +3946,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
}
snprintf (buf, sizeof(buf),
- "volume%ld-active-hard-limit", count);
+ "volume%"PRIu64"-active-hard-limit", count);
ret = dict_set_uint64 (rsp_dict, buf,
active_hard_limit);
if (ret) {
@@ -3950,7 +3956,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
}
snprintf (buf, sizeof(buf),
- "volume%ld-snap-max-soft-limit", count);
+ "volume%"PRIu64"-snap-max-soft-limit", count);
ret = dict_set_uint64 (rsp_dict, buf, soft_limit_value);
if (ret) {
snprintf (err_str, PATH_MAX,
@@ -3984,7 +3990,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
soft_limit_value = (active_hard_limit *
conf->snap_max_soft_limit) / 100;
- snprintf (buf, sizeof(buf), "volume%ld-volname", count);
+ snprintf (buf, sizeof(buf), "volume%"PRIu64"-volname", count);
ret = dict_set_str (rsp_dict, buf, volinfo->volname);
if (ret) {
snprintf (err_str, PATH_MAX,
@@ -3993,7 +3999,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
}
snprintf (buf, sizeof(buf),
- "volume%ld-snap-max-hard-limit", count);
+ "volume%"PRIu64"-snap-max-hard-limit", count);
ret = dict_set_uint64 (rsp_dict, buf, snap_max_limit);
if (ret) {
snprintf (err_str, PATH_MAX,
@@ -4002,7 +4008,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
}
snprintf (buf, sizeof(buf),
- "volume%ld-active-hard-limit", count);
+ "volume%"PRIu64"-active-hard-limit", count);
ret = dict_set_uint64 (rsp_dict, buf, active_hard_limit);
if (ret) {
snprintf (err_str, PATH_MAX,
@@ -4011,7 +4017,7 @@ snap_max_limits_display_commit (dict_t *rsp_dict, char *volname,
}
snprintf (buf, sizeof(buf),
- "volume%ld-snap-max-soft-limit", count);
+ "volume%"PRIu64"-snap-max-soft-limit", count);
ret = dict_set_uint64 (rsp_dict, buf, soft_limit_value);
if (ret) {
snprintf (err_str, PATH_MAX,
@@ -4196,7 +4202,7 @@ glusterd_get_brick_lvm_details (dict_t *rsp_dict,
* for the above given command with separator ":",
* The output will be "vgname:lvsize"
*/
- runner_add_args (&runner, "lvs", device, "--noheading", "-o",
+ runner_add_args (&runner, LVS, device, "--noheading", "-o",
"vg_name,data_percent,lv_size",
"--separator", ":", NULL);
runner_redir (&runner, STDOUT_FILENO, RUN_PIPE);
@@ -5320,6 +5326,30 @@ glusterd_free_snap_op (glusterd_snap_op_t *snap_op)
}
}
+static inline void
+glusterd_free_missed_snapinfo (glusterd_missed_snap_info *missed_snapinfo)
+{
+ glusterd_snap_op_t *snap_opinfo = NULL;
+ glusterd_snap_op_t *tmp = NULL;
+
+ if (missed_snapinfo) {
+ list_for_each_entry_safe (snap_opinfo, tmp,
+ &missed_snapinfo->snap_ops,
+ snap_ops_list) {
+ glusterd_free_snap_op (snap_opinfo);
+ snap_opinfo = NULL;
+ }
+
+ if (missed_snapinfo->node_uuid)
+ GF_FREE (missed_snapinfo->node_uuid);
+
+ if (missed_snapinfo->snap_uuid)
+ GF_FREE (missed_snapinfo->snap_uuid);
+
+ GF_FREE (missed_snapinfo);
+ }
+}
+
/* Look for duplicates and accordingly update the list */
int32_t
glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
@@ -5337,6 +5367,13 @@ glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
list_for_each_entry (snap_opinfo, &missed_snapinfo->snap_ops,
snap_ops_list) {
+ /* If the entry is not for the same snap_vol_id
+ * then continue
+ */
+ if (strcmp (snap_opinfo->snap_vol_id,
+ missed_snap_op->snap_vol_id))
+ continue;
+
if ((!strcmp (snap_opinfo->brick_path,
missed_snap_op->brick_path)) &&
(snap_opinfo->op == missed_snap_op->op)) {
@@ -5348,8 +5385,10 @@ glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
snap_opinfo->status = GD_MISSED_SNAP_DONE;
gf_log (this->name, GF_LOG_INFO,
"Updating missed snap status "
- "for %s:%d:%s:%d as DONE",
- missed_snapinfo->node_snap_info,
+ "for %s:%s=%s:%d:%s:%d as DONE",
+ missed_snapinfo->node_uuid,
+ missed_snapinfo->snap_uuid,
+ snap_opinfo->snap_vol_id,
snap_opinfo->brick_num,
snap_opinfo->brick_path,
snap_opinfo->op);
@@ -5362,15 +5401,19 @@ glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
} else if ((snap_opinfo->brick_num ==
missed_snap_op->brick_num) &&
(snap_opinfo->op == GF_SNAP_OPTION_TYPE_CREATE) &&
- (missed_snap_op->op ==
- GF_SNAP_OPTION_TYPE_DELETE)) {
+ ((missed_snap_op->op ==
+ GF_SNAP_OPTION_TYPE_DELETE) ||
+ (missed_snap_op->op ==
+ GF_SNAP_OPTION_TYPE_RESTORE))) {
/* Optimizing create and delete entries for the same
* brick and same node
*/
gf_log (this->name, GF_LOG_INFO,
"Updating missed snap status "
- "for %s:%d:%s:%d as DONE",
- missed_snapinfo->node_snap_info,
+ "for %s:%s=%s:%d:%s:%d as DONE",
+ missed_snapinfo->node_uuid,
+ missed_snapinfo->snap_uuid,
+ snap_opinfo->snap_vol_id,
snap_opinfo->brick_num,
snap_opinfo->brick_path,
snap_opinfo->op);
@@ -5398,10 +5441,13 @@ out:
/* Add new missed snap entry to the missed_snaps list. */
int32_t
-glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
- char *brick_path, int32_t snap_op,
- int32_t snap_status)
+glusterd_add_new_entry_to_list (char *missed_info, char *snap_vol_id,
+ int32_t brick_num, char *brick_path,
+ int32_t snap_op, int32_t snap_status)
{
+ char *buf = NULL;
+ char *save_ptr = NULL;
+ char node_snap_info[PATH_MAX] = "";
int32_t ret = -1;
glusterd_missed_snap_info *missed_snapinfo = NULL;
glusterd_snap_op_t *missed_snap_op = NULL;
@@ -5413,6 +5459,7 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
this = THIS;
GF_ASSERT(this);
GF_ASSERT(missed_info);
+ GF_ASSERT(snap_vol_id);
GF_ASSERT(brick_path);
priv = this->private;
@@ -5428,6 +5475,11 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
goto out;
}
+ missed_snap_op->snap_vol_id = gf_strdup(snap_vol_id);
+ if (!missed_snap_op->snap_vol_id) {
+ ret = -1;
+ goto out;
+ }
missed_snap_op->brick_path = gf_strdup(brick_path);
if (!missed_snap_op->brick_path) {
ret = -1;
@@ -5440,8 +5492,10 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
/* Look for other entries for the same node and same snap */
list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
missed_snaps) {
- if (!strcmp (missed_snapinfo->node_snap_info,
- missed_info)) {
+ snprintf (node_snap_info, sizeof(node_snap_info),
+ "%s:%s", missed_snapinfo->node_uuid,
+ missed_snapinfo->snap_uuid);
+ if (!strcmp (node_snap_info, missed_info)) {
/* Found missed snapshot info for *
* the same node and same snap */
match = _gf_true;
@@ -5458,8 +5512,24 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
goto out;
}
free_missed_snap_info = _gf_true;
- missed_snapinfo->node_snap_info = gf_strdup(missed_info);
- if (!missed_snapinfo->node_snap_info) {
+ buf = strtok_r (missed_info, ":", &save_ptr);
+ if (!buf) {
+ ret = -1;
+ goto out;
+ }
+ missed_snapinfo->node_uuid = gf_strdup(buf);
+ if (!missed_snapinfo->node_uuid) {
+ ret = -1;
+ goto out;
+ }
+
+ buf = strtok_r (NULL, ":", &save_ptr);
+ if (!buf) {
+ ret = -1;
+ goto out;
+ }
+ missed_snapinfo->snap_uuid = gf_strdup(buf);
+ if (!missed_snapinfo->snap_uuid) {
ret = -1;
goto out;
}
@@ -5486,12 +5556,8 @@ out:
glusterd_free_snap_op (missed_snap_op);
if (missed_snapinfo &&
- (free_missed_snap_info == _gf_true)) {
- if (missed_snapinfo->node_snap_info)
- GF_FREE (missed_snapinfo->node_snap_info);
-
- GF_FREE (missed_snapinfo);
- }
+ (free_missed_snap_info == _gf_true))
+ glusterd_free_missed_snapinfo (missed_snapinfo);
}
gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
@@ -5507,6 +5573,7 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
char *save_ptr = NULL;
char *nodeid = NULL;
char *snap_uuid = NULL;
+ char *snap_vol_id = NULL;
char *brick_path = NULL;
char missed_info[PATH_MAX] = "";
char name_buf[PATH_MAX] = "";
@@ -5553,13 +5620,14 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
*/
nodeid = strtok_r (tmp, ":", &save_ptr);
snap_uuid = strtok_r (NULL, "=", &save_ptr);
+ snap_vol_id = strtok_r (NULL, ":", &save_ptr);
brick_num = atoi(strtok_r (NULL, ":", &save_ptr));
brick_path = strtok_r (NULL, ":", &save_ptr);
snap_op = atoi(strtok_r (NULL, ":", &save_ptr));
snap_status = atoi(strtok_r (NULL, ":", &save_ptr));
if (!nodeid || !snap_uuid || !brick_path ||
- brick_num < 1 || snap_op < 1 ||
+ !snap_vol_id || brick_num < 1 || snap_op < 1 ||
snap_status < 1) {
gf_log (this->name, GF_LOG_ERROR,
"Invalid missed_snap_entry");
@@ -5570,11 +5638,12 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
snprintf (missed_info, sizeof(missed_info), "%s:%s",
nodeid, snap_uuid);
- ret = glusterd_store_missed_snaps_list (missed_info,
- brick_num,
- brick_path,
- snap_op,
- snap_status);
+ ret = glusterd_add_new_entry_to_list (missed_info,
+ snap_vol_id,
+ brick_num,
+ brick_path,
+ snap_op,
+ snap_status);
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to store missed snaps_list");
@@ -5585,6 +5654,7 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
tmp = NULL;
}
+ ret = 0;
out:
if (tmp)
GF_FREE (tmp);
@@ -5592,3 +5662,126 @@ out:
gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
return ret;
}
+
+/* This function will restore origin volume to it's snap.
+ * The restore operation will simply replace the Gluster origin
+ * volume with the snap volume.
+ * TODO: Multi-volume delete to be done.
+ * Cleanup in case of restore failure is pending.
+ *
+ * @param orig_vol volinfo of origin volume
+ * @param snap_vol volinfo of snapshot volume
+ *
+ * @return 0 on success and negative value on error
+ */
+int
+gd_restore_snap_volume (dict_t *rsp_dict,
+ glusterd_volinfo_t *orig_vol,
+ glusterd_volinfo_t *snap_vol)
+{
+ int ret = -1;
+ glusterd_volinfo_t *new_volinfo = NULL;
+ glusterd_snap_t *snap = NULL;
+ xlator_t *this = NULL;
+ glusterd_conf_t *conf = NULL;
+ glusterd_volinfo_t *temp_volinfo = NULL;
+ glusterd_volinfo_t *voliter = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (rsp_dict);
+ conf = this->private;
+ GF_ASSERT (conf);
+
+ GF_VALIDATE_OR_GOTO (this->name, orig_vol, out);
+ GF_VALIDATE_OR_GOTO (this->name, snap_vol, out);
+ snap = snap_vol->snapshot;
+ GF_VALIDATE_OR_GOTO (this->name, snap, out);
+
+ /* Snap volume must be stoped before performing the
+ * restore operation.
+ */
+ ret = glusterd_stop_volume (snap_vol);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to stop "
+ "snap volume");
+ goto out;
+ }
+
+ /* Create a new volinfo for the restored volume */
+ ret = glusterd_volinfo_dup (snap_vol, &new_volinfo, _gf_true);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to create volinfo");
+ goto out;
+ }
+
+ /* Following entries need to be derived from origin volume. */
+ strcpy (new_volinfo->volname, orig_vol->volname);
+ uuid_copy (new_volinfo->volume_id, orig_vol->volume_id);
+ new_volinfo->snap_count = orig_vol->snap_count;
+ new_volinfo->snap_max_hard_limit = orig_vol->snap_max_hard_limit;
+ uuid_copy (new_volinfo->restored_from_snap,
+ snap_vol->snapshot->snap_id);
+
+ /* Bump the version of the restored volume, so that nodes *
+ * which are done can sync during handshake */
+ new_volinfo->version = orig_vol->version;
+
+ list_for_each_entry_safe (voliter, temp_volinfo,
+ &orig_vol->snap_volumes, snapvol_list) {
+ list_add_tail (&voliter->snapvol_list,
+ &new_volinfo->snap_volumes);
+ }
+ /* Copy the snap vol info to the new_volinfo.*/
+ ret = glusterd_snap_volinfo_restore (rsp_dict, new_volinfo, snap_vol);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to restore snap");
+ (void)glusterd_volinfo_delete (new_volinfo);
+ goto out;
+ }
+
+ ret = glusterd_lvm_snapshot_remove (rsp_dict, orig_vol);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to remove "
+ "LVM backend");
+ (void)glusterd_volinfo_delete (new_volinfo);
+ goto out;
+ }
+
+ /* New volinfo always shows the status as created. Therefore
+ * set the status to the original volume's status. */
+ glusterd_set_volume_status (new_volinfo, orig_vol->status);
+
+ /* Once the new_volinfo is completely constructed then delete
+ * the orinal volinfo
+ */
+ ret = glusterd_volinfo_delete (orig_vol);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to delete volinfo");
+ (void)glusterd_volinfo_delete (new_volinfo);
+ goto out;
+ }
+
+ list_add_tail (&new_volinfo->vol_list, &conf->volumes);
+
+ /* Now delete the snap entry. As a first step delete the snap
+ * volume information stored in store. */
+ ret = glusterd_snap_remove (rsp_dict, snap, _gf_false, _gf_true);
+ if (ret) {
+ gf_log (this->name, GF_LOG_WARNING, "Failed to delete "
+ "snap %s", snap->snapname);
+ goto out;
+ }
+
+ ret = glusterd_store_volinfo (new_volinfo,
+ GLUSTERD_VOLINFO_VER_AC_INCREMENT);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to store volinfo");
+ goto out;
+ }
+
+ ret = 0;
+out:
+
+ return ret;
+}