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authorAvra Sengupta <asengupt@redhat.com>2015-10-15 16:08:03 +0530
committerRajesh Joseph <rjoseph@redhat.com>2015-10-20 03:00:05 -0700
commit59401a32de51cdb6c1a5a1208723e89e1a4abd30 (patch)
tree06f1118ab5cdbbde7aadd6a53a33044b51f83303
parent7945121dda340ec8f25711b2ad3ca70b544de967 (diff)
snapshot: Fix snapshot clone postvalidate
In glusterd_snapshot_clone_postvalidate(), we were deleting snap object and snap vol, by looking up snapname. Hence, it was deleting the orignal snapshot from which the clone was being created Instead it should fetch the clonename, the respective clone vol, and its corresponding snap object, and delete them. Also glusterd_snap_remove(), needs to differentiate a clone snap object from a snaphsot snap object, as in case of a clone snap object, we don't have any persisted data in /var/run/gluster/snaps/ and hence is shouldn't try to delete anything there. Change-Id: I02bb22a3898d5720e318a02d6cc32d25f75d317d BUG: 1272339 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/12364 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: mohammed rafi kc <rkavunga@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c10
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot.c98
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.c3
-rw-r--r--xlators/mgmt/glusterd/src/glusterd.h3
4 files changed, 62 insertions, 52 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
index 5833e5ec593..1d64e6e980c 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
@@ -1030,7 +1030,8 @@ glusterd_perform_missed_op (glusterd_snap_t *snap, int32_t op)
switch (op) {
case GF_SNAP_OPTION_TYPE_DELETE:
- ret = glusterd_snap_remove (dict, snap, _gf_true, _gf_false);
+ ret = glusterd_snap_remove (dict, snap, _gf_true, _gf_false,
+ _gf_false);
if (ret) {
gf_msg (this->name, GF_LOG_ERROR, 0,
GD_MSG_SNAP_REMOVE_FAIL,
@@ -1630,7 +1631,7 @@ glusterd_import_friend_snap (dict_t *peer_data, int32_t snap_count,
"The snap(%s) is scheduled to be decommissioned "
"Not accepting the snap.", peer_snap_name);
glusterd_snap_remove (dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true, _gf_false);
ret = 0;
goto out;
}
@@ -1708,7 +1709,7 @@ glusterd_import_friend_snap (dict_t *peer_data, int32_t snap_count,
out:
if (ret)
glusterd_snap_remove (dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true, _gf_false);
if (dict)
dict_unref (dict);
@@ -1935,7 +1936,8 @@ remove_my_data:
goto out;
}
- ret = glusterd_snap_remove (dict, snap, remove_lvm, _gf_false);
+ ret = glusterd_snap_remove (dict, snap, remove_lvm, _gf_false,
+ _gf_false);
if (ret) {
gf_msg (this->name, GF_LOG_ERROR, 0,
GD_MSG_SNAP_REMOVE_FAIL,
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot.c b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
index e9a98ea694d..d185ba82979 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
@@ -2960,7 +2960,8 @@ int32_t
glusterd_snap_remove (dict_t *rsp_dict,
glusterd_snap_t *snap,
gf_boolean_t remove_lvm,
- gf_boolean_t force)
+ gf_boolean_t force,
+ gf_boolean_t is_clone)
{
int ret = -1;
int save_ret = 0;
@@ -2995,14 +2996,20 @@ glusterd_snap_remove (dict_t *rsp_dict,
}
}
- ret = glusterd_store_delete_snap (snap);
- if (ret) {
- gf_msg(this->name, GF_LOG_WARNING, 0,
- GD_MSG_SNAP_REMOVE_FAIL, "Failed to remove snap %s "
- "from store", snap->snapname);
- save_ret = ret;
- if (!force)
- goto out;
+ /* A clone does not persist snap info in /var/lib/glusterd/snaps/ *
+ * and hence there is no snap info to be deleted from there *
+ */
+ if (!is_clone) {
+ ret = glusterd_store_delete_snap (snap);
+ if (ret) {
+ gf_msg(this->name, GF_LOG_WARNING, 0,
+ GD_MSG_SNAP_REMOVE_FAIL,
+ "Failed to remove snap %s from store",
+ snap->snapname);
+ save_ret = ret;
+ if (!force)
+ goto out;
+ }
}
ret = glusterd_snapobject_delete (snap);
@@ -4403,7 +4410,8 @@ out:
if (ret) {
if (snap)
glusterd_snap_remove (rsp_dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true,
+ _gf_false);
snap = NULL;
}
@@ -5981,7 +5989,8 @@ glusterd_snapshot_remove_commit (dict_t *dict, char **op_errstr,
}
}
- ret = glusterd_snap_remove (rsp_dict, snap, _gf_true, _gf_false);
+ ret = glusterd_snap_remove (rsp_dict, snap, _gf_true, _gf_false,
+ _gf_false);
if (ret) {
gf_msg (this->name, GF_LOG_ERROR, 0,
GD_MSG_SNAP_REMOVE_FAIL, "Failed to remove snap %s",
@@ -6053,7 +6062,8 @@ glusterd_do_snap_cleanup (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
goto out;
}
- ret = glusterd_snap_remove (rsp_dict, snap, _gf_true, _gf_true);
+ ret = glusterd_snap_remove (rsp_dict, snap, _gf_true, _gf_true,
+ _gf_false);
if (ret) {
/* Ignore failure as this is a cleanup of half cooked
snapshot */
@@ -6343,7 +6353,7 @@ out:
if (ret) {
if (snap)
glusterd_snap_remove (rsp_dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true, _gf_true);
snap = NULL;
}
@@ -6479,7 +6489,8 @@ out:
if (ret) {
if (snap)
glusterd_snap_remove (rsp_dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true,
+ _gf_true);
snap = NULL;
}
@@ -6677,7 +6688,8 @@ out:
if (ret) {
if (snap)
glusterd_snap_remove (rsp_dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true,
+ _gf_false);
snap = NULL;
}
@@ -7722,7 +7734,8 @@ glusterd_handle_snap_limit (dict_t *dict, dict_t *rsp_dict)
}
ret = glusterd_snap_remove (rsp_dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true,
+ _gf_false);
if (ret)
gf_msg (this->name, GF_LOG_WARNING, 0,
GD_MSG_SNAP_REMOVE_FAIL,
@@ -7758,27 +7771,6 @@ glusterd_snapshot_clone_postvalidate (dict_t *dict, int32_t op_ret,
priv = this->private;
GF_ASSERT (priv);
- if (op_ret) {
- ret = dict_get_int32 (dict, "cleanup", &cleanup);
- if (!ret && cleanup) {
- ret = glusterd_do_snap_cleanup (dict, op_errstr,
- rsp_dict);
- if (ret) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- GD_MSG_SNAP_CLEANUP_FAIL, "cleanup "
- "operation failed");
- goto out;
- }
- }
- /* Irrespective of status of cleanup its better
- * to return from this function. As the functions
- * following this block is not required to be
- * executed in case of failure scenario.
- */
- ret = 0;
- goto out;
- }
-
ret = dict_get_str (dict, "clonename", &clonename);
if (ret) {
gf_msg (this->name, GF_LOG_ERROR, 0,
@@ -7795,16 +7787,29 @@ glusterd_snapshot_clone_postvalidate (dict_t *dict, int32_t op_ret,
goto out;
}
- ret = glusterd_snapshot_update_snaps_post_validate (dict,
- op_errstr,
- rsp_dict);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- GD_MSG_SNAP_CREATION_FAIL, "Failed to "
- "create snapshot");
+ if (snap_vol)
+ snap = snap_vol->snapshot;
+
+ /* Fetch snap object from snap_vol and delete it all in case of *
+ * a failure, or else, just delete the snap object as it is not *
+ * needed in case of a clone *
+ */
+ if (op_ret) {
+ ret = dict_get_int32 (dict, "cleanup", &cleanup);
+ if (!ret && cleanup && snap) {
+ glusterd_snap_remove (rsp_dict, snap,
+ _gf_true, _gf_true,
+ _gf_true);
+ }
+ /* Irrespective of status of cleanup its better
+ * to return from this function. As the functions
+ * following this block is not required to be
+ * executed in case of failure scenario.
+ */
+ ret = 0;
goto out;
}
- snap = snap_vol->snapshot;
+
ret = glusterd_snapobject_delete (snap);
if (ret) {
gf_msg (this->name, GF_LOG_WARNING, 0,
@@ -8341,7 +8346,8 @@ glusterd_snapshot_restore_cleanup (dict_t *rsp_dict,
volname);
/* Now delete the snap entry. */
- ret = glusterd_snap_remove (rsp_dict, snap, _gf_false, _gf_true);
+ ret = glusterd_snap_remove (rsp_dict, snap, _gf_false, _gf_true,
+ _gf_false);
if (ret) {
gf_msg (this->name, GF_LOG_WARNING, 0,
GD_MSG_SNAP_REMOVE_FAIL, "Failed to delete "
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
index 73b1c696271..d93f51bf63e 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.c
+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
@@ -4195,7 +4195,8 @@ glusterd_snap_cleanup (xlator_t *this)
}
} else if (snap->snap_status != GD_SNAP_STATUS_IN_USE) {
ret = glusterd_snap_remove (dict, snap,
- _gf_true, _gf_true);
+ _gf_true, _gf_true,
+ _gf_false);
if (ret) {
gf_msg (this->name, GF_LOG_ERROR, 0,
GD_MSG_SNAP_REMOVE_FAIL,
diff --git a/xlators/mgmt/glusterd/src/glusterd.h b/xlators/mgmt/glusterd/src/glusterd.h
index e9098a227d2..7dbe96b6d83 100644
--- a/xlators/mgmt/glusterd/src/glusterd.h
+++ b/xlators/mgmt/glusterd/src/glusterd.h
@@ -1114,7 +1114,8 @@ glusterd_build_snap_device_path (char *device, char *snapname,
int32_t
glusterd_snap_remove (dict_t *rsp_dict, glusterd_snap_t *snap,
- gf_boolean_t remove_lvm, gf_boolean_t force);
+ gf_boolean_t remove_lvm, gf_boolean_t force,
+ gf_boolean_t is_clone);
int32_t
glusterd_snapshot_cleanup (dict_t *dict, char **op_errstr, dict_t *rsp_dict);