> On 17 Apr 2018, at 11:28, Stefano Stagnaro > <stefa...@prismatelecomtesting.com> wrote: > > On Thu, 2018-04-12 at 20:20 +0200, Michal Skrivanek wrote: >> >> >>> On 12 Apr 2018, at 18:26, Stefano Stagnaro >>> <stefa...@prismatelecomtesting.com >>> <mailto:stefa...@prismatelecomtesting.com>> wrote: >>> Hi, >>> >>> I recently upgraded an oVirt deployment from 3.6 to 4.0 and then 4.1.9 (my >>> actual release). Since then, when migrating many hosts simultaneously I >>> always experience few migrations failure like 1 on 10 vms. The failure can >>> occur on any host; moreover, after a couple of failure the destination host >>> fall in Error status and I have to manually re-activate or wait 30 min.
Are they all in a 3.6 cluster? >>> >>> Tipical error found on vdsm log is (from the source host): >>> 2018-04-12 17:01:32,097+0200 ERROR (migsrc/3192dfe7) [virt.vm] >>> (vmId='3192dfe7-eeac-4626-8c86-e49facc9006f') migration destination error: >>> Fatal error during migration (migration:287) >>> >>> Please find the logs of source host (v15.ovirt), destination host >>> (v14.ovirt) and engine here: >>> https://www.dropbox.com/sh/xhf8ry4ih40poxd/AABxiFCIxDe14HSx2DqLE61ya?dl=0 >>> <https://www.dropbox.com/sh/xhf8ry4ih40poxd/AABxiFCIxDe14HSx2DqLE61ya?dl=0> >>> >>> Some of the vm affected from the migration failure are: >>> svn 3192dfe7-eeac-4626-8c86-e49facc9006f >>> wood a8e83ff0-dfed-4074-b6b6-e947b8ebb952 >>> qnx66 5697c4a4-9e40-4dd6-aba2-c8ab9904a584 >> >> can you also include qemu log from /var/log/libvirt/qemu/<vmname>? > > Hi Michal, I've added libvirt logs for relevant VMs on the previous Dropbox > share. I do not see anything wrong. It’s a bit too much data to go through, can you pinpoint the time and VM name when you see a failure? Thanks, michal > >> >> btw you seem to be using the legacy migration policy throttling the speed >> significantly. Please read into the migration enhancements in 4.0 >> https://www.ovirt.org/develop/release-management/features/virt/migration-enhancements/ >> >> <https://www.ovirt.org/develop/release-management/features/virt/migration-enhancements/> > I've already moved to Minimal Downtime and then to Post-copy with same > results. VM migrations continue to fail randomly. > >> >> Thanks, >> michal > > Thanks, > Stefano. > > >> >>> >>> Thank you very much for your help. >>> >>> -- >>> Stefano Stagnaro >>> >>> Prisma Telecom Testing S.r.l. >>> Via Petrocchi, 4 >>> 20127 Milano – Italy >>> >>> Tel. 02 26113507 int 339 >>> e-mail: stefa...@prismatelecomtesting.com >>> <mailto:stefa...@prismatelecomtesting.com> >>> skype: stefano.stagnaro >>> _______________________________________________ >>> Users mailing list >>> Users@ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >> >
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