Bug 1072302
| Summary: | RHEV: Cannot start VMs that have more than 23 snapshots - clone for rhel/rhev split | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Jan Kurik <jkurik> |
| Component: | qemu-kvm | Assignee: | Virtualization Maintenance <virt-maint> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 6.5 | CC: | acathrow, areis, bazulay, bsarathy, chayang, famz, fsimonce, gwatson, iheim, jcody, jherrman, jkurik, juzhang, knoel, kwolf, lpeer, michen, mkalinin, mkenneth, mrezanin, pbonzini, pm-eus, qzhang, sgordon, shu, tlavigne, virt-maint, yeylon |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-rhev-0.12.1.2-2.415.el6_5.6 | Doc Type: | Bug Fix |
| Doc Text: |
Previously, the number of characters in the file name strings for virtual machine (VM) images was limited. Because repeated creation of VM image snapshots gradually increases the file name string size, this eventually resulted in either of the following problems when the size limit was reached: creating an image snapshot failed to be executed or the VM did not successfully boot. This update fixes the handling of file names so that long file names are now supported, and the mentioned problems no longer occur.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-03-25 12:27:23 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: | 1067576, 1072339, 1113583 | ||
| Bug Blocks: | |||
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Description
Jan Kurik
2014-03-04 10:47:47 UTC
Reproduced on qemu-kvm-rhev-0.12.1.2-2.415.el6_5.5.x86_64: run test script from: https://bugzilla.redhat.com/show_bug.cgi?id=1067576#c28 [root@ibm-x3650m3-04 ~]# ./test.sh Formatting 'base.qcow2', fmt=qcow2 size=1073741824 encryption=off cluster_size=65536 Performing live snapshot test ----------------------------- Waiting to connect to qmp socket... ./test.sh: connect: Connection refused ./test.sh: line 44: /dev/tcp/localhost/44444: Connection refused connected! snapshot-0: success! snapshot-1: success! snapshot-2: success! snapshot-3: success! snapshot-4: success! snapshot-5: success! ... snapshot-25: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) snapshot-26: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) snapshot-27: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) snapshot-28: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) ... snapshot-79: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) Performing qemu-img snapshot test --------------------------------- snapshot-0: success! snapshot-1: success! snapshot-2: success! snapshot-3: success! snapshot-4: success! ... snapshot-24: success! snapshot-25: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) snapshot-26: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) snapshot-27: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) snapshot-28: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) ... snapshot-79: failed! (see this-is-a-test-dir-for-snapshots-2844/output.log) Killing qemu process (2848).... done, left directory this-is-a-test-dir-for-snapshots-2844 intact Verified on qemu-kvm-rhev-0.12.1.2-2.415.el6_5.6.x86_64: run same script, all 80 snapshots success with both qemu-kvm and qemu-img. Hello, Mirek Do you know when could we create the qemu-kvm-rhev errata for the bug? And also the twins qemu-kvm errata for bug 1071740. Thanks, Qunfang Hi Qunfang, I'm waiting for RHEL 6.5.z errata to be shipped so therre won't be two erratas for the same product-version. I expect it to happen today. (In reply to Miroslav Rezanina from comment #5) > Hi Qunfang, > I'm waiting for RHEL 6.5.z errata to be shipped so therre won't be two > erratas for the same product-version. I expect it to happen today. Hi, Mirek Okay and thanks. I mean one erratum for RHEL qemu-kvm and another one for RHEV-H qemu-kvm-rhev like we did in the past. Thanks, Qunfang Reproduced with qemu-kvm-rhev-0.12.1.2-2.415.el6_5.5.x86_64.
Packages used:
qemu-kvm-rhev-0.12.1.2-2.415.el6_5.5.x86_64
libvirt-0.10.2-29.el6_5.5.x86_64
vdsm-4.13.2-0.11.el6ev.x86_64
Steps:
1) Create a new VM with a single 1gb disk (or any size)
2) Keep creating snapshots.
Actual Result:
Counting from 1st snapshot, when creating 24th snapshot, it failed on:
...
7b4d785c-272c-41ac-b807-2dba3bef14b2::DEBUG::2014-03-11 16:54:05,278::volume::1058::Storage.Misc.excCmd::(createVolume) FAILED: <err> = '/rhev/data-center/2fa4f0cf-69ca-410c-9046-dda14854f535/cd1ce1b9-cfaf-4bc1-9564-16c9d3833dbb/images/dce65faf-5bb1-4700-8832-1f8914d3ee92/30e7a762-c799-4961-a407-f8530469e0da: error while creating qcow2: No such file or directory\n'; <rc> = 1
7b4d785c-272c-41ac-b807-2dba3bef14b2::ERROR::2014-03-11 16:54:05,283::volume::286::Storage.Volume::(clone) Volume.clone: can't clone: /rhev/data-center/2fa4f0cf-69ca-410c-9046-dda14854f535/cd1ce1b9-cfaf-4bc1-9564-16c9d3833dbb/images/dce65faf-5bb1-4700-8832-1f8914d3ee92/1dc7a771-836b-404a-941f-34ba5e7f5442 to /rhev/data-center/2fa4f0cf-69ca-410c-9046-dda14854f535/cd1ce1b9-cfaf-4bc1-9564-16c9d3833dbb/images/dce65faf-5bb1-4700-8832-1f8914d3ee92/30e7a762-c799-4961-a407-f8530469e0da
7b4d785c-272c-41ac-b807-2dba3bef14b2::ERROR::2014-03-11 16:54:05,283::volume::508::Storage.Volume::(create) Unexpected error
Traceback (most recent call last):
File "/usr/share/vdsm/storage/volume.py", line 466, in create
srcVolUUID, imgPath, volPath)
File "/usr/share/vdsm/storage/fileVolume.py", line 160, in _create
volParent.clone(imgPath, volUUID, volFormat, preallocate)
File "/usr/share/vdsm/storage/volume.py", line 287, in clone
raise se.CannotCloneVolume(self.volumePath, dst_path, str(e))
CannotCloneVolume: Cannot clone volume: 'src=/rhev/data-center/2fa4f0cf-69ca-410c-9046-dda14854f535/cd1ce1b9-cfaf-4bc1-9564-16c9d3833dbb/images/dce65faf-5bb1-4700-8832-1f8914d3ee92/1dc7a771-836b-404a-941f-34ba5e7f5442, dst=/rhev/data-center/2fa4f0cf-69ca-410c-9046-dda14854f535/cd1ce1b9-cfaf-4bc1-9564-16c9d3833dbb/images/dce65faf-5bb1-4700-8832-1f8914d3ee92/30e7a762-c799-4961-a407-f8530469e0da: Error creating a new volume: (["Formatting \'/rhev/data-center/2fa4f0cf-69ca-410c-9046-dda14854f535/cd1ce1b9-cfaf-4bc1-9564-16c9d3833dbb/images/dce65faf-5bb1-4700-8832-1f8914d3ee92/30e7a762-c799-4961-a407-f8530469e0da\', fmt=qcow2 size=1073741824 backing_file=\'../dce65faf-5bb1-4700-8832-1f8914d3ee92/1dc7a771-836b-404a-941f-34ba5e7f5442\' backing_fmt=\'qcow2\' encryption=off cluster_size=65536 "],)'
Verified on qemu-kvm-rhev-0.12.1.2-2.415.el6_5.6.x86_64 with same steps. I can continue to create snapshots up to 50 successfully.
So this issue has fixed. Moving to VERIFIED.
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/RHBA-2014-0329.html |