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Description of problem: ====================== For the same snap, different snap IDs are listed when checked from different nodes . Version-Release number of selected component (if applicable): ============================================================= glusterfs 3.4.0.snap.dec03.2013git How reproducible: ================ always Steps to Reproduce: ================== 1.Create a distribute volume with 3 bricks 2.Take multiple snaps on the volume using gluster snapshot create <volume> -n <snap_name> 3.List the snapshots of a given volume with detail description using gluster snapshot list <vol-name> -d” For the same snap , there are different SNAP ID s listed : NODE 1 : ---------- gluster snapshot list volume1 -d Volume Name : volume1 Number of snaps taken : 4 Number of snaps available : 252 Snap Name : snap1 Snap Time : 2013-12-10 07:07:58 Snap ID : 7c486f72-3e64-495f-a3ab-504f801e27ed CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap2 Snap Time : 2013-12-10 07:37:57 Snap ID : 55ce99df-9f37-4537-b790-bdba2a567a26 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap3 Snap Time : 2013-12-10 09:20:04 Snap ID : 17ff82ab-b890-4d14-95a7-fb4ed149e02e CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap4 Snap Time : 2013-12-10 09:26:43 Snap ID : cacd5a0c-bb4d-44db-a5dc-b4ceb2843524 CG Name : Does not exist CG ID : Does not exist Snap Description : this is a snap of volume1 Snap Status : In-use ====================================================== NODE 2 : -------- gluster snapshot list volume1 -d Volume Name : volume1 Number of snaps taken : 4 Number of snaps available : 252 Snap Name : snap1 Snap Time : 2013-12-10 07:07:56 Snap ID : e1a2ef0b-c4e6-43fb-ab81-1749dd5b0923 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap2 Snap Time : 2013-12-10 07:37:55 Snap ID : 307c4b19-1bac-4073-9af7-6e740455f414 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap3 Snap Time : 2013-12-10 09:20:02 Snap ID : 67d036ea-e48d-425b-906c-c9696ce8a5e3 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap4 Snap Time : 2013-12-10 09:26:41 Snap ID : 9f72db9b-92a9-4b2f-958c-a0f8631e43a9 CG Name : Does not exist CG ID : Does not exist Snap Description : this is a snap of volume1 Snap Status : In-use ============================================================= NODE 3 : ------- gluster snapshot list volume1 -d Volume Name : volume1 Number of snaps taken : 4 Number of snaps available : 252 Snap Name : snap1 Snap Time : 2013-12-10 07:07:57 Snap ID : 24c31b9e-4e8f-4217-9fd2-32e5505d18fb CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap2 Snap Time : 2013-12-10 07:37:56 Snap ID : 3c22c135-35a8-4aaa-b909-1ffe829f9f4a CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap3 Snap Time : 2013-12-10 09:20:03 Snap ID : 4fcb3e73-e7e4-4cac-a8a9-c46e686bcd49 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : snap4 Snap Time : 2013-12-10 09:26:42 Snap ID : 581ec99b-d390-4d89-90f6-406aa7c26e61 CG Name : Does not exist CG ID : Does not exist Snap Description : this is a snap of volume1 Snap Status : In-use ========================================================= Actual results: =============== Snap ID is different for the same snap when listed from different nodes Expected results: ================= It is misleading for the user to see different Snap ID s on different nodes for the same snap . Needs a discussion to understand if we can display the Volume ID to which the snap is associated instead of different SNAP ID s from different nodes. Additional info:
sosreports : http://rhsqe-repo.lab.eng.blr.redhat.com/bugs_necessary_info/snapshots/1039956/
Snap UUID was different when listed from different node, The reason for that behaviour was, we used to generate a new UUID for snaps in each node and copy that to snap_uuid. Now we are copying the snap volume id of the snap to snap uuid, so that we can make the snap UUID same across nodes.
Version : glusterfs 3.4.0.snap.dec30.2013git ======= On a distribute volume and distribute replicate volume, Snap ID is same across all the nodes for the same snap. But after restarting glusterd , the number of snaps listed is shown as 'zero' . This issue is tracked by https://bugzilla.redhat.com/show_bug.cgi?id=1044476 Marking this bug as a dependent of BZ#1044476, since while verifying this bug QE would like to test if the SNAP ID remains the same after restarting glusterd as well . Node 1: ======= gluster snapshot list volume2 -d Volume Name : volume2 Number of snaps taken : 3 Number of snaps available : 253 Snap Name : SNAP1 Snap Time : 2013-12-30 11:25:18 Snap ID : 73df9768-1c69-48a5-803e-e8a0b4a6957f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : SNAP2 Snap Time : 2013-12-30 11:25:28 Snap ID : 7ddb5e77-6ad5-48bd-b3d7-6afb3fafbc5f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : SNAP3 Snap Time : 2013-12-30 11:25:37 Snap ID : 4c92b6e0-eb8d-4c32-9b53-0a543c3afbc4 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-03 brick7]# service glusterd restart Starting glusterd: [ OK ] [root@snapshot-03 brick7]# gluster snapshot list volume2 -d Volume Name : volume2 Number of snaps taken : 0 Number of snaps available : 256 NODE 2 : ======= gluster snapshot list volume2 -d Volume Name : volume2 Number of snaps taken : 3 Number of snaps available : 253 Snap Name : SNAP1 Snap Time : 2013-12-30 11:25:17 Snap ID : 73df9768-1c69-48a5-803e-e8a0b4a6957f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : SNAP2 Snap Time : 2013-12-30 11:25:28 Snap ID : 7ddb5e77-6ad5-48bd-b3d7-6afb3fafbc5f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : SNAP3 Snap Time : 2013-12-30 11:25:36 Snap ID : 4c92b6e0-eb8d-4c32-9b53-0a543c3afbc4 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-01 volume2]# service glusterd restart Starting glusterd: [ OK ] [root@snapshot-01 volume2]# gluster snapshot list volume2 -d Volume Name : volume2 Number of snaps taken : 0 Number of snaps available : 256
with build: 3.4.1.snap.jan15.2014 Node1: ====== [root@snapshot-01 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 2014-01-17 11:10:10 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 2014-01-17 11:10:17 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-01 ~]# [root@snapshot-01 ~]# [root@snapshot-01 ~]# [root@snapshot-01 ~]# service glusterd restart Starting glusterd: [ OK ] [root@snapshot-01 ~]# [root@snapshot-01 ~]# [root@snapshot-01 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 1970-01-01 05:30:00 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 1970-01-01 05:30:00 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-01 ~]# Node2: ====== [root@snapshot-02 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 2014-01-17 11:10:11 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 2014-01-17 11:10:18 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-02 ~]# [root@snapshot-02 ~]# [root@snapshot-02 ~]# [root@snapshot-02 ~]# service glusterd restart Starting glusterd: [ OK ] [root@snapshot-02 ~]# [root@snapshot-02 ~]# [root@snapshot-02 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 1970-01-01 05:30:00 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 1970-01-01 05:30:00 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-02 ~]# Node3: ====== [root@snapshot-03 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 2014-01-17 11:10:12 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 2014-01-17 11:10:18 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-03 ~]# [root@snapshot-03 ~]# [root@snapshot-03 ~]# [root@snapshot-03 ~]# service glusterd restart Starting glusterd: [ OK ] [root@snapshot-03 ~]# [root@snapshot-03 ~]# [root@snapshot-03 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 1970-01-01 05:30:00 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 1970-01-01 05:30:00 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-03 ~]# Node4: ====== [root@snapshot-04 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 2014-01-17 11:10:12 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 2014-01-17 11:10:18 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-04 ~]# [root@snapshot-04 ~]# [root@snapshot-04 ~]# [root@snapshot-04 ~]# service glusterd restart Starting glusterd: [ OK ] [root@snapshot-04 ~]# [root@snapshot-04 ~]# [root@snapshot-04 ~]# gluster snap list vol3 -d Volume Name : vol3 Number of snaps taken : 2 Number of snaps available : 254 Snap Name : n1 Snap Time : 1970-01-01 05:30:00 Snap UUID : b57cb17d-3a30-4e86-93c2-4f6d2e73b15f CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use Snap Name : n2 Snap Time : 1970-01-01 05:30:00 Snap UUID : 4ed50af7-f6a3-4254-b9f5-ee4b85657331 CG Name : Does not exist CG ID : Does not exist Snap Description : Description not present Snap Status : In-use [root@snapshot-04 ~]# UUID across the nodes even after restarting ofglusterd, remain same. But the Snap Time changes to epoch time which is tracked in bz 1054151. Hence keeping it open and marking dependent on 1054151
Fixed with http://review.gluster.org/#/c/7123/21
Version : glusterfs 3.4.1.6.snap.mar25.2014 ======= With the new snap driven changes, snapshot list will only list snapshots & snapshot info will give details about the snapshot.Hence the Snap UUID will now be shown with 'gluster snapshot info' command On all the nodes for the same snap, SNAP UUID remains the same (after restarting glusterd also) gluster snapshot info snap_vol1_1 Snapshot : snap_vol1_1 Snap UUID : d45ccab8-8b06-4472-87e6-f329fa2322de Created : 2014-03-26 09:07:23 Snap Volumes: Snap Volume Name : 4811847d69e64eab98a78a7d39841390 Origin Volume name : vol1 Snaps taken for vol1 : 10 Snaps available for vol1 : 246 Status : Started gluster snapshot info volume vol1 Volume Name : vol1 Snaps Taken : 10 Snaps Available : 246 Snapshot : snap_vol1_1 Snap UUID : d45ccab8-8b06-4472-87e6-f329fa2322de Created : 2014-03-26 09:07:23 Status : Started Snapshot : snap_vol1_2 Snap UUID : 14636ecb-238e-49bb-974a-4ddc817b0a89 Created : 2014-03-26 09:07:29 Status : Started After restarting glusterd, check 'gluster snapshot info' again from all the nodes gluster snapshot info snap_vol1_1 Snapshot : snap_vol1_1 Snap UUID : d45ccab8-8b06-4472-87e6-f329fa2322de Created : 2014-03-26 09:07:23 Snap Volumes: Snap Volume Name : 4811847d69e64eab98a78a7d39841390 Origin Volume name : vol1 Snaps taken for vol1 : 10 Snaps available for vol1 : 246 Status : Started gluster snapshot info volume vol1 Volume Name : vol1 Snaps Taken : 10 Snaps Available : 246 Snapshot : snap_vol1_1 Snap UUID : d45ccab8-8b06-4472-87e6-f329fa2322de Created : 2014-03-26 09:07:23 Status : Started Snapshot : snap_vol1_2 Snap UUID : 14636ecb-238e-49bb-974a-4ddc817b0a89 Created : 2014-03-26 09:07:29 Status : Started For the same snap, SNAP UUID remains same across all the nodes. Marking the bug as 'Verified'
Marking snapshot BZs to RHS 3.0.
Setting flags required to add BZs to RHS 3.0 Errata
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHEA-2014-1278.html