Please note that bug 1461029 is about live merge (the VM is up) while, at least according to the logs, the issue described here is related to cold merge (the VM is down).

On Thu, Jul 13, 2017 at 7:22 PM, richard anthony falzini <richardfalzini@gmail.com> wrote:
Hi,
i have the same problem with gluster.
this is a bug that i opened  https://bugzilla.redhat.com/show_bug.cgi?id=1461029 .
In the bug i used single disk vm but i start to notice the problem with multiple disk vm.


2017-07-13 0:07 GMT+02:00 Devin Acosta <devin@pabstatencio.com>:
We are running a fresh install of oVIRT 4.1.3, using ISCSI, the VM in question has multiple Disks (4 to be exact). It snapshotted OK while on iSCSI however when I went to delete the single snapshot that existed it went into Locked state and never came back. The deletion has been going for well over an hour, and I am not convinced since the snapshot is less than 12 hours old that it’s really doing anything.

I have seen that doing some Googling indicates there might be some known issues with iSCSI/Block Storage/Multiple Disk Snapshot issues. 

In the logs on the engine it shows:

2017-07-12 21:59:42,473Z INFO  [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (DefaultQuartzScheduler2) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'ColdMergeSnapshotSingleDisk' (id: '75c535fd-4558-459a-9992-875c48578a97') waiting on child command id: 'd92e9a22-5f0f-4b61-aac6-5601f8ac2cda' type:'PrepareMerge' to complete
2017-07-12 21:59:52,480Z INFO  [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback] (DefaultQuartzScheduler2) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'RemoveSnapshot' (id: '40482d09-8a7c-4dbd-8324-3e789296887a') waiting on child command id: '75c535fd-4558-459a-9992-875c48578a97' type:'ColdMergeSnapshotSingleDisk' to complete
2017-07-12 21:59:52,483Z INFO  [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (DefaultQuartzScheduler2) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'ColdMergeSnapshotSingleDisk' (id: '75c535fd-4558-459a-9992-875c48578a97') waiting on child command id: 'd92e9a22-5f0f-4b61-aac6-5601f8ac2cda' type:'PrepareMerge' to complete
2017-07-12 22:00:02,490Z INFO  [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback] (DefaultQuartzScheduler6) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'RemoveSnapshot' (id: '40482d09-8a7c-4dbd-8324-3e789296887a') waiting on child command id: '75c535fd-4558-459a-9992-875c48578a97' type:'ColdMergeSnapshotSingleDisk' to complete
2017-07-12 22:00:02,493Z INFO  [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (DefaultQuartzScheduler6) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'ColdMergeSnapshotSingleDisk' (id: '75c535fd-4558-459a-9992-875c48578a97') waiting on child command id: 'd92e9a22-5f0f-4b61-aac6-5601f8ac2cda' type:'PrepareMerge' to complete
2017-07-12 22:00:12,498Z INFO  [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback] (DefaultQuartzScheduler3) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'RemoveSnapshot' (id: '40482d09-8a7c-4dbd-8324-3e789296887a') waiting on child command id: '75c535fd-4558-459a-9992-875c48578a97' type:'ColdMergeSnapshotSingleDisk' to complete
2017-07-12 22:00:12,501Z INFO  [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (DefaultQuartzScheduler3) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'ColdMergeSnapshotSingleDisk' (id: '75c535fd-4558-459a-9992-875c48578a97') waiting on child command id: 'd92e9a22-5f0f-4b61-aac6-5601f8ac2cda' type:'PrepareMerge' to complete
2017-07-12 22:00:22,508Z INFO  [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback] (DefaultQuartzScheduler5) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'RemoveSnapshot' (id: '40482d09-8a7c-4dbd-8324-3e789296887a') waiting on child command id: '75c535fd-4558-459a-9992-875c48578a97' type:'ColdMergeSnapshotSingleDisk' to complete
2017-07-12 22:00:22,511Z INFO  [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (DefaultQuartzScheduler5) [a5f6eaf2-7996-4d51-ba62-050272d1f097] Command 'ColdMergeSnapshotSingleDisk' (id: '75c535fd-4558-459a-9992-875c48578a97') waiting on child command id: 'd92e9a22-5f0f-4b61-aac6-5601f8ac2cda' type:'PrepareMerge' to complete

This is what I seen on the SPM when I grep’d the Snapshot ID.

2017-07-12 14:22:18,773-0700 INFO  (jsonrpc/6) [vdsm.api] START createVolume(sdUUID=u'0c02a758-4295-4199-97de-b041744b3b15', spUUID=u'00000001-0001-0001-0001-000000000311', imgUUID=u'6a887015-67cd-4f7b-b709-eef97142258d', size=u'107374182400', volFormat=4, preallocate=2, diskType=2, volUUID=u'5921ba71-0f00-46cd-b0be-3c2ac1396845', desc=u'', srcImgUUID=u'6a887015-67cd-4f7b-b709-eef97142258d', srcVolUUID=u'0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae', initialSize=None) from=::ffff:10.4.64.7,60016, flow_id=e94eebf8-75dc-407a-8916-f4ff632f843e (api:46)
2017-07-12 14:22:19,095-0700 WARN  (tasks/6) [root] File: /rhev/data-center/00000001-0001-0001-0001-000000000311/0c02a758-4295-4199-97de-b041744b3b15/images/6a887015-67cd-4f7b-b709-eef97142258d/5921ba71-0f00-46cd-b0be-3c2ac1396845 already removed (utils:120)
2017-07-12 14:22:19,096-0700 INFO  (tasks/6) [storage.Volume] Request to create snapshot 6a887015-67cd-4f7b-b709-eef97142258d/5921ba71-0f00-46cd-b0be-3c2ac1396845 of volume 6a887015-67cd-4f7b-b709-eef97142258d/0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae (blockVolume:545)
2017-07-12 14:22:19,676-0700 INFO  (tasks/6) [storage.LVM] Change LV tags (vg=0c02a758-4295-4199-97de-b041744b3b15, lv=5921ba71-0f00-46cd-b0be-3c2ac1396845, delTags=['OVIRT_VOL_INITIALIZING'], addTags=['MD_10', u'PU_0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae', u'IU_6a887015-67cd-4f7b-b709-eef97142258d']) (lvm:1344)
2017-07-12 14:22:36,010-0700 INFO  (jsonrpc/5) [vdsm.api] START getVolumeInfo(sdUUID=u'0c02a758-4295-4199-97de-b041744b3b15', spUUID=u'00000001-0001-0001-0001-000000000311', imgUUID=u'6a887015-67cd-4f7b-b709-eef97142258d', volUUID=u'5921ba71-0f00-46cd-b0be-3c2ac1396845', options=None) from=::ffff:10.4.64.7,59664, flow_id=e94eebf8-75dc-407a-8916-f4ff632f843e (api:46)
2017-07-12 14:22:36,077-0700 INFO  (jsonrpc/5) [storage.VolumeManifest] Info request: sdUUID=0c02a758-4295-4199-97de-b041744b3b15 imgUUID=6a887015-67cd-4f7b-b709-eef97142258d volUUID = 5921ba71-0f00-46cd-b0be-3c2ac1396845  (volume:238)
2017-07-12 14:22:36,185-0700 INFO  (jsonrpc/5) [storage.VolumeManifest] 0c02a758-4295-4199-97de-b041744b3b15/6a887015-67cd-4f7b-b709-eef97142258d/5921ba71-0f00-46cd-b0be-3c2ac1396845 info is {'status': 'OK', 'domain': '0c02a758-4295-4199-97de-b041744b3b15', 'voltype': 'LEAF', 'description': '', 'parent': '0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae', 'format': 'COW', 'generation': 0, 'image': '6a887015-67cd-4f7b-b709-eef97142258d', 'ctime': '1499894539', 'disktype': '2', 'legality': 'LEGAL', 'mtime': '0', 'apparentsize': '1073741824', 'children': [], 'pool': '', 'capacity': '107374182400', 'uuid': u'5921ba71-0f00-46cd-b0be-3c2ac1396845', 'truesize': '1073741824', 'type': 'SPARSE', 'lease': {'owners': [], 'version': None}} (volume:272)
2017-07-12 14:22:36,186-0700 INFO  (jsonrpc/5) [vdsm.api] FINISH getVolumeInfo return={'info': {'status': 'OK', 'domain': '0c02a758-4295-4199-97de-b041744b3b15', 'voltype': 'LEAF', 'description': '', 'parent': '0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae', 'format': 'COW', 'generation': 0, 'image': '6a887015-67cd-4f7b-b709-eef97142258d', 'ctime': '1499894539', 'disktype': '2', 'legality': 'LEGAL', 'mtime': '0', 'apparentsize': '1073741824', 'children': [], 'pool': '', 'capacity': '107374182400', 'uuid': u'5921ba71-0f00-46cd-b0be-3c2ac1396845', 'truesize': '1073741824', 'type': 'SPARSE', 'lease': {'owners': [], 'version': None}}} from=::ffff:10.4.64.7,59664, flow_id=e94eebf8-75dc-407a-8916-f4ff632f843e (api:52)
2017-07-12 14:24:24,854-0700 INFO  (jsonrpc/1) [vdsm.api] START deleteVolume(sdUUID=u'0c02a758-4295-4199-97de-b041744b3b15', spUUID=u'00000001-0001-0001-0001-000000000311', imgUUID=u'6a887015-67cd-4f7b-b709-eef97142258d', volumes=[u'5921ba71-0f00-46cd-b0be-3c2ac1396845'], postZero=u'false', force=u'false', discard=False) from=::ffff:10.4.64.7,60016, flow_id=c5e4bda4-9cd3-461d-8164-51d5614b995e (api:46)
2017-07-12 14:24:25,010-0700 INFO  (tasks/7) [storage.Volume] Request to delete LV 5921ba71-0f00-46cd-b0be-3c2ac1396845 of image 6a887015-67cd-4f7b-b709-eef97142258d in VG 0c02a758-4295-4199-97de-b041744b3b15  (blockVolume:579)
2017-07-12 14:24:25,130-0700 INFO  (tasks/7) [storage.VolumeManifest] sdUUID=0c02a758-4295-4199-97de-b041744b3b15 imgUUID=6a887015-67cd-4f7b-b709-eef97142258d volUUID = 5921ba71-0f00-46cd-b0be-3c2ac1396845 legality = ILLEGAL  (volume:398)
2017-07-12 14:24:38,881-0700 INFO  (jsonrpc/2) [vdsm.api] START getVolumeInfo(sdUUID=u'0c02a758-4295-4199-97de-b041744b3b15', spUUID=u'00000001-0001-0001-0001-000000000311', imgUUID=u'6a887015-67cd-4f7b-b709-eef97142258d', volUUID=u'5921ba71-0f00-46cd-b0be-3c2ac1396845', options=None) from=::ffff:10.4.64.7,59664, flow_id=c5e4bda4-9cd3-461d-8164-51d5614b995e (api:46)
2017-07-12 14:24:49,911-0700 INFO  (jsonrpc/1) [vdsm.api] START getVolumeInfo(sdUUID=u'0c02a758-4295-4199-97de-b041744b3b15', spUUID=u'00000001-0001-0001-0001-000000000311', imgUUID=u'6a887015-67cd-4f7b-b709-eef97142258d', volUUID=u'0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae', options=None) from=::ffff:10.4.64.7,59664, flow_id=c5e4bda4-9cd3-461d-8164-51d5614b995e (api:46)
2017-07-12 14:24:49,912-0700 INFO  (jsonrpc/1) [storage.VolumeManifest] Info request: sdUUID=0c02a758-4295-4199-97de-b041744b3b15 imgUUID=6a887015-67cd-4f7b-b709-eef97142258d volUUID = 0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae  (volume:238)
2017-07-12 14:24:50,036-0700 INFO  (jsonrpc/1) [storage.VolumeManifest] 0c02a758-4295-4199-97de-b041744b3b15/6a887015-67cd-4f7b-b709-eef97142258d/0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae info is {'status': 'OK', 'domain': '0c02a758-4295-4199-97de-b041744b3b15', 'voltype': 'LEAF', 'description': '', 'parent': '00000000-0000-0000-0000-000000000000', 'format': 'COW', 'generation': 0, 'image': '6a887015-67cd-4f7b-b709-eef97142258d', 'ctime': '1499885619', 'disktype': '2', 'legality': 'LEGAL', 'mtime': '0', 'apparentsize': '110729625600', 'children': [], 'pool': '', 'capacity': '107374182400', 'uuid': u'0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae', 'truesize': '110729625600', 'type': 'SPARSE', 'lease': {'owners': [], 'version': None}} (volume:272)
2017-07-12 14:24:50,037-0700 INFO  (jsonrpc/1) [vdsm.api] FINISH getVolumeInfo return={'info': {'status': 'OK', 'domain': '0c02a758-4295-4199-97de-b041744b3b15', 'voltype': 'LEAF', 'description': '', 'parent': '00000000-0000-0000-0000-000000000000', 'format': 'COW', 'generation': 0, 'image': '6a887015-67cd-4f7b-b709-eef97142258d', 'ctime': '1499885619', 'disktype': '2', 'legality': 'LEGAL', 'mtime': '0', 'apparentsize': '110729625600', 'children': [], 'pool': '', 'capacity': '107374182400', 'uuid': u'0c3de1a8-ac18-4d7b-b348-3b097bf0a0ae', 'truesize': '110729625600', 'type': 'SPARSE', 'lease': {'owners': [], 'version': None}}} from=::ffff:10.4.64.7,59664, flow_id=c5e4bda4-9cd3-461d-8164-51d5614b995e (api:52)

HELP, Right now I am starting to think Block Storage and oVIRT = BAD!




--

Devin Acosta
Red Hat Certified Architect, LinuxStack 



_______________________________________________
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users



_______________________________________________
Users mailing list
Users@ovirt.org
http://lists.ovirt.org/mailman/listinfo/users