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Bug 693283

Summary:

[vdsm] [Snapshot] Merge snapshots fails on nfs storage domain

Product:

Red Hat Enterprise Linux 6

Reporter:

David Naori <dnaori>

Component:

vdsm

Assignee:

Igor Lvovsky <ilvovsky>

Status:

CLOSED ERRATA

QA Contact:

David Naori <dnaori>

Severity:

medium

Docs Contact:

Priority:

unspecified

Version:

6.1

CC:

abaron, bazulay, dnaori, hateya, iheim, lpeer, mgoldboi, tdosek, ykaul

Target Milestone:

Keywords:

Regression

Target Release:

---

Hardware:

x86_64

OS:

Linux

Whiteboard:

storage

Fixed In Version:

vdsm-4.9-59.el6

Doc Type:

Bug Fix

Doc Text:

Story Points:

---

Clone Of:

Environment:

Last Closed:

2011-12-06 07:11:55 UTC

Type:

---

Regression:

---

Mount Type:

---

Documentation:

---

CRM:

Verified Versions:

Category:

---

oVirt Team:

---

RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

---

Target Upstream Version:

Embargoed:

Bug Depends On:

693741

Bug Blocks:

Attachments:

Description	Flags
full vdsm log	none

Description David Naori 2011-04-04 07:22:24 UTC

Created attachment 489708 [details]
full vdsm log

Description of problem:
Merge snapshot fails on NFS with the following ERROR:

58a5bccb-7dca-4ddb-95b9-c54c4f674470::ERROR::2011-04-04 10:15:15,268::image::1104::Storage.Image::(merge) Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/image.py", line 1076, in merge
    chain = self._internalVolumeMerge(sdUUID, srcVolParams, volParams, newSize, chain)
  File "/usr/share/vdsm/storage/image.py", line 906, in _internalVolumeMerge
    srcVol.rebase(volParams['volUUID'], backingVolPath, volParams['volFormat'], unsafe=False, rollback=True)
  File "/usr/share/vdsm/storage/volume.py", line 163, in rebase
    raise se.MergeSnapshotsError(self.volUUID)
MergeSnapshotsError: Error merging snapshots: ('b9204b3f-b1c1-4f14-a93b-62693f16c6aa',)

58a5bccb-7dca-4ddb-95b9-c54c4f674470::ERROR::2011-04-04 10:15:15,275::task::854::TaskManager.Task::(_setError) Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 862, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/storage/task.py", line 299, in run
    return self.cmd(*self.argslist, **self.argsdict)
  File "/usr/share/vdsm/storage/spm.py", line 114, in run
    return self.func(*args, **kwargs)
  File "/usr/share/vdsm/storage/spm.py", line 907, in mergeSnapshots
    image.Image(repoPath).merge(sdUUID, vmUUID, imgUUID, ancestor, successor, postZero)
  File "/usr/share/vdsm/storage/image.py", line 1076, in merge
    chain = self._internalVolumeMerge(sdUUID, srcVolParams, volParams, newSize, chain)
  File "/usr/share/vdsm/storage/image.py", line 906, in _internalVolumeMerge
    srcVol.rebase(volParams['volUUID'], backingVolPath, volParams['volFormat'], unsafe=False, rollback=True)
  File "/usr/share/vdsm/storage/volume.py", line 163, in rebase
    raise se.MergeSnapshotsError(self.volUUID)
MergeSnapshotsError: Error merging snapshots: ('b9204b3f-b1c1-4f14-a93b-62693f16c6aa',)


Version-Release number of selected component (if applicable):
vdsm-4.9-57.el6.x86_64

full vdsm log attached

Comment 1 RHEL Program Management 2011-04-04 07:33:15 UTC

Since RHEL 6.1 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.

Comment 2 Igor Lvovsky 2011-04-05 13:41:50 UTC

Actually, it's regression bug of qemu-img (bug 693741)

Comment 4 Igor Lvovsky 2011-04-13 07:42:15 UTC

Should be solved in qemu-img-0.12.1.2-2.157.el6.x86_64.rpm

Comment 5 Tomas Dosek 2011-04-21 07:02:54 UTC

Verified:
 vdsm-4.9-59.el6
 qemu-kvm-0.12.1.2-2.157.el6

Merge snapshots now doesn't fail on NFS storage.

Comment 6 errata-xmlrpc 2011-12-06 07:11:55 UTC

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-2011-1782.html