[ovirt-users] Re: Unable to start VM - Image is not a legal chain

Thank you Nicolas. I will keep this for future reference in case I encounter this again. Now I don't have the corrupted VM to experiment. Thanx, Alex On Wed, Jul 11, 2018 at 11:28 AM, <nicolas(a)devels.es&gt; wrote: > Hi Alex, > > We had a bigger problem recently which involved the error you mention. I > sent it to the mail list and you can find the final solution we chose at > [1]. Not the cleanest solution of course, but we managed to recover all > VMs... I think in your case the relevant part is the one that mention the > "vdsClient setVolumeLegality" command, although I don't know the root > reason why you're getting the error (might be a corrupt snapshot, as in our > case)... > > Hope this helps. > > [1]: https://www.mail-archive.com/users@ovirt.org/msg49300.html > > > El 2018-07-11 09:16, Alex K escribió: > >> Due to urgency of the case, I fetched the backup copy from weekend and >> proceeded to push missing data to VM (the VM is a git repo). I lost >> few notes, though not much damage was done... >> I'm starting to feel uncomfortable with this solution though and might >> switch (at least the production VMs) to plain KVM where I had never >> experienced such issues. >> >> Alex >> >> On Wed, Jul 11, 2018 at 7:27 AM, Yedidyah Bar David <didi(a)redhat.com&gt; >> wrote: >> >> (Changing subject, adding Freddy) >>> >>> On Tue, Jul 10, 2018 at 8:06 PM, Alex K <rightkicktech(a)gmail.com&gt; >>> wrote: >>> >>> Hi all, >>>> >>>> I did a routine maintenance today (updating the hosts) to ovirt >>>> cluster (4.2) and I have one VM that was complaining about an >>>> invalid snapshot. After shutdown of VM the VM is not able to start >>>> again, giving the error: >>>> >>>> VM Gitlab is down with error. Exit message: Bad volume >>>> specification {'serial': 'b6af2856-a164-484a-afe5-9836bbdd14e8', >>>> 'index': 0, 'iface': 'virtio', 'apparentsize': '51838976', >>>> 'specParams': {}, 'cache': 'none', 'imageID': >>>> 'b6af2856-a164-484a-afe5-9836bbdd14e8', 'truesize': '52011008', >>>> 'type': 'disk', 'domainID': >>>> '142bbde6-ef9d-4a52-b9da-2de533c1f1bd', 'reqsize': '0', 'format': >>>> 'cow', 'poolID': '00000001-0001-0001-0001-000000000311', 'device': >>>> 'disk', 'path': >>>> >>>> >>> >> '/rhev/data-center/00000001-0001-0001-0001-000000000311/142bbde6-ef9d-4a52-b9da-2de533c1f1bd/images/b6af2856-a164-484a-afe5-9836bbdd14e8/f3125f62-c909-472f-919c-844e0b8c156d', >> >>> 'propagateErrors': 'off', 'name': 'vda', 'bootOrder': '1', >>>> 'volumeID': 'f3125f62-c909-472f-919c-844e0b8c156d', 'diskType': >>>> 'file', 'alias': 'ua-b6af2856-a164-484a-afe5-9836bbdd14e8', >>>> 'discard': False}. >>>> >>>> I see also the following error: >>>> >>>> VDSM command CopyImageVDS failed: Image is not a legal chain: >>>> (u'b6af2856-a164-484a-afe5-9836bbdd14e8',) >>>> >>> >>> This error appears a few more times in the list's archive, all of >>> which seem to be related to rather-old bugs (3.5/3.6 times) or >>> storage problems. I assume you use 4.2. Are you sure the corruption >>> happened only now? Did working with snapshots worked well before the >>> upgrade? >>> >>> >>> >>> Seems as a corrupt VM disk? >>>> >>> >>> Seems so to me, but I am not a storage expert. >>> >>> >>> >>> The VM had 3 snapshots. I was able to delete one from GUI then am >>>> not able to delete the other two as the task fails. Generally I am >>>> not allowed to clone, export or do sth to the VM. >>>> >>>> >>> >>> Have you encountered sth similar. Any advice? >>>> >>> >>> The lastest post, from 2016, included a workaround, you might (very >>> carefully!) try that. >>> >>> I suggest to also open a bug and attach all relevant logs (engine, >>> vdsm from all relevant hosts, including SPMs at time of snapshot >>> operations and any other host that ran the VM), and try to give >>> accurate reproduction steps. >>> >>> Best regards, >>> -- >>> >>> Didi >>> >> >> >> _______________________________________________ >> Users mailing list -- users(a)ovirt.org >> To unsubscribe send an email to users-leave(a)ovirt.org >> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >> oVirt Code of Conduct: >> https://www.ovirt.org/community/about/community-guidelines/ >> List Archives: >> >> https://lists.ovirt.org/archives/list/users@ovirt.org/message/VYR4KMOZVEQ... >> > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/Q4TUEIMBIHO... >