On 10 Jul 2019, at 21:01, Strahil <hunter86_bg(a)yahoo.com>
wrote:
Power down the VM and reduce the memory a little bit but keep the maximum memory value
the same or larger.
Then power it up and extend the ram to the same value the VM had.
It's a wild guess... So don't expect miracles.
Best Regards,
Strahil NikolovOn Jul 10, 2019 18:21, Michael Watters <wattersm(a)watters.ws> wrote:
>
> I need to migrate running VMs from one host in our cluster to another
> however the task keeps failing any time I start a migration. The engine
> logs show a few different errors as follows.
>
> 2019-07-10 09:53:19,440-04 ERROR
> [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer]
> (ForkJoinPool-1-worker-2) [] Migration of VM 'vm1' to host
> 'ovirt-node-production3' failed: VM destroyed during the startup.
>
> 2019-07-10 09:53:06,542-04 ERROR
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
> (default task-51) [c1daf639-ff39-4397-b1bf-09426cacf72d] EVENT_ID:
> VM_MIGRATION_FAILED(65), Migration failed due to a failed validation:
> [Cannot migrate VM. There is no host that satisfies current scheduling
> constraints. See below for details:, The host ovirt-node-production3 did
> not satisfy internal filter Memory.] (VM: vm2, Source:
> ovirt-node-production2).
You do not have enough available memory on the target. It happens with
high overcommit, migrating to a new host require more space initially
than what it currently takes on source. Check avail mem for scheduling
on the other host
Host Maintenance just tries over and over, so there’s a better chance
it succeeds eventually.
>>
>>
>> I also checked the vdsm.log on the destination host which is showing an
>> error like this.
>>
>> ERROR (jsonrpc/2) [virt.vm]
>> (vmId='f5bb25a8-3176-40b6-b21b-f07ed1089b27') Alias not found for device
>> type balloon during migration at destination host (vm:5562)
>>
>> Does anybody know how to resolve this? The destination host is able to
>> run VMs and I've been able to move a few VMs by shutting down and doing
>> a restart however I'd like to do a live migration if possible.
>>
>>
>>
>>
>>
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