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authorAvra Sengupta <asengupt@redhat.com>2016-10-20 12:58:16 +0530
committerRajesh Joseph <rjoseph@redhat.com>2016-11-01 23:28:26 -0700
commit9a2b3fb8b9ff28edafa012dacc5f5f0e4ee1afab (patch)
tree5d9be4a6410894c75883ef4e9933d4b625c36642 /xlators/mgmt/glusterd/src/glusterd-snapshot.c
parent9340b3c7a6c8556d6f1d4046de0dbd1946a64963 (diff)
snapshot: Fix the failure to recreate clones with same name
The brick path of snapshot clones contained the clonename, thereby failing to create newer clones with the same name after the original clone had been deleted. This fix creates the brick path with the clone's vol id instead of the clones name. Hence future clones with the same name will not have the namespace clash. Change-Id: I262712adc576122f051b5d1ce171d020efaefd1a BUG: 1387160 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/15683 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-snapshot.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot.c54
1 files changed, 40 insertions, 14 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot.c b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
index dee31563d38..ae70bc81c2c 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
@@ -2321,6 +2321,7 @@ glusterd_snapshot_clone_prevalidate (dict_t *dict, char **op_errstr,
{
char *clonename = NULL;
char *snapname = NULL;
+ char device_name[64] = "";
char key[PATH_MAX] = "";
glusterd_snap_t *snap = NULL;
char err_str[PATH_MAX] = "";
@@ -2386,10 +2387,12 @@ glusterd_snapshot_clone_prevalidate (dict_t *dict, char **op_errstr,
goto out;
}
+ GLUSTERD_GET_UUID_NOHYPHEN (device_name, *snap_volid);
+
/* Adding snap bricks mount paths to the dict */
ret = glusterd_snap_create_clone_common_prevalidate (rsp_dict, 0,
snapname, err_str,
- clonename, 1,
+ device_name, 1,
snap_vol,
&loglevel,
1, op_errno);
@@ -4744,11 +4747,12 @@ out:
int32_t
glusterd_snap_brick_create (glusterd_volinfo_t *snap_volinfo,
glusterd_brickinfo_t *brickinfo,
- int32_t brick_count)
+ int32_t brick_count, int32_t clone)
{
int32_t ret = -1;
xlator_t *this = NULL;
char snap_brick_mount_path[PATH_MAX] = "";
+ char clone_uuid[64] = "";
struct stat statbuf = {0, };
this = THIS;
@@ -4756,9 +4760,16 @@ glusterd_snap_brick_create (glusterd_volinfo_t *snap_volinfo,
GF_ASSERT (snap_volinfo);
GF_ASSERT (brickinfo);
- snprintf (snap_brick_mount_path, sizeof (snap_brick_mount_path),
- "%s/%s/brick%d", snap_mount_dir, snap_volinfo->volname,
- brick_count + 1);
+ if (clone) {
+ GLUSTERD_GET_UUID_NOHYPHEN(clone_uuid, snap_volinfo->volume_id);
+ snprintf (snap_brick_mount_path, sizeof (snap_brick_mount_path),
+ "%s/%s/brick%d", snap_mount_dir,
+ clone_uuid, brick_count + 1);
+ } else {
+ snprintf (snap_brick_mount_path, sizeof (snap_brick_mount_path),
+ "%s/%s/brick%d", snap_mount_dir,
+ snap_volinfo->volname, brick_count + 1);
+ }
ret = mkdir_p (snap_brick_mount_path, 0777, _gf_true);
if (ret) {
@@ -4833,6 +4844,7 @@ glusterd_add_brick_to_snap_volume (dict_t *dict, dict_t *rsp_dict,
char *value = NULL;
char *snap_brick_dir = NULL;
char snap_brick_path[PATH_MAX] = "";
+ char clone_uuid[64] = "";
char *snap_device = NULL;
glusterd_brickinfo_t *snap_brickinfo = NULL;
gf_boolean_t add_missed_snap = _gf_false;
@@ -4948,10 +4960,18 @@ glusterd_add_brick_to_snap_volume (dict_t *dict, dict_t *rsp_dict,
/* Create brick-path in the format /var/run/gluster/snaps/ *
* <snap-uuid>/<original-brick#>/snap-brick-dir *
*/
- snprintf (snap_brick_path, sizeof(snap_brick_path),
- "%s/%s/brick%d%s", snap_mount_dir,
- snap_vol->volname, brick_count+1,
- snap_brick_dir);
+ if (clone) {
+ GLUSTERD_GET_UUID_NOHYPHEN(clone_uuid, snap_vol->volume_id);
+ snprintf (snap_brick_path, sizeof(snap_brick_path),
+ "%s/%s/brick%d%s", snap_mount_dir,
+ clone_uuid, brick_count+1,
+ snap_brick_dir);
+ } else {
+ snprintf (snap_brick_path, sizeof(snap_brick_path),
+ "%s/%s/brick%d%s", snap_mount_dir,
+ snap_vol->volname, brick_count+1,
+ snap_brick_dir);
+ }
snprintf (key, sizeof(key), "vol%"PRId64".brick_snapdevice%d",
volcount, brick_count);
@@ -5093,7 +5113,8 @@ out:
static int32_t
glusterd_take_brick_snapshot (dict_t *dict, glusterd_volinfo_t *snap_vol,
glusterd_brickinfo_t *brickinfo,
- int32_t volcount, int32_t brick_count)
+ int32_t volcount, int32_t brick_count,
+ int32_t clone)
{
char *origin_brick_path = NULL;
char key[PATH_MAX] = "";
@@ -5149,7 +5170,8 @@ glusterd_take_brick_snapshot (dict_t *dict, glusterd_volinfo_t *snap_vol,
}
/* create the complete brick here */
- ret = glusterd_snap_brick_create (snap_vol, brickinfo, brick_count);
+ ret = glusterd_snap_brick_create (snap_vol, brickinfo,
+ brick_count, clone);
if (ret) {
gf_msg (this->name, GF_LOG_ERROR, 0,
GD_MSG_BRICK_CREATION_FAIL, "not able to"
@@ -6425,7 +6447,8 @@ out:
int
glusterd_take_brick_snapshot_task (void *opaque)
{
- int ret = 0;
+ int ret = 0;
+ int32_t clone = 0;
snap_create_args_t *snap_args = NULL;
char *clonename = NULL;
char key[PATH_MAX] = "";
@@ -6441,15 +6464,18 @@ glusterd_take_brick_snapshot_task (void *opaque)
if (ret) {
snprintf (key, sizeof (key), "snap-vol%d.brick%d.status",
snap_args->volcount, snap_args->brickorder);
- } else
+ } else {
snprintf (key, sizeof (key), "clone%d.brick%d.status",
snap_args->volcount, snap_args->brickorder);
+ clone = 1;
+ }
ret = glusterd_take_brick_snapshot (snap_args->dict,
snap_args->snap_vol,
snap_args->brickinfo,
snap_args->volcount,
- snap_args->brickorder);
+ snap_args->brickorder,
+ clone);
if (ret) {
gf_msg (THIS->name, GF_LOG_ERROR, 0,