[pve-devel] migration problems since qemu 1.3

[Stefan Priebe - Profihost AG]

Hi,

at least migration works at all ;-) I'll wait until tomorrow and test 
again. I've restarted all VMs with latest pve-qemu-kvm.

Thanks!

Am 20.12.2012 11:57, schrieb Alexandre DERUMIER:
> with last git, I think it's related to balloon driver enabled by default, and qmp command send (see my previous mail).
>
>
> can you try to replace (in QemuServer.pm)
>
>          if (!defined($conf->{balloon}) || $conf->{balloon}) {
>              vm_mon_cmd($vmid, "balloon", value => $conf->{balloon}*1024*1024)
>                  if $conf->{balloon};
>
>              vm_mon_cmd($vmid, 'qom-set',
>                         path => "machine/peripheral/balloon0",
>                         property => "stats-polling-interval",
>                         value => 2);
>          }
>
> by
>
>          if (!defined($conf->{balloon}) || $conf->{balloon}) {
>              vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
>                  if $conf->{balloon};
>
>              vm_mon_cmd_nocheck($vmid, 'qom-set',
>                         path => "machine/peripheral/balloon0",
>                         property => "stats-polling-interval",
>                         value => 2);
>          }
>
>
> (vm_mon_cmd_nocheck)
>
> ----- Mail original -----
>
> De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag>
> À: "Alexandre DERUMIER" <aderumier at odiso.com>
> Cc: pve-devel at pve.proxmox.com
> Envoyé: Jeudi 20 Décembre 2012 11:48:06
> Objet: Re: [pve-devel] migration problems since qemu 1.3
>
> Hi,
>
> Am 20.12.2012 10:04, schrieb Alexandre DERUMIER:
>>>> Yes. It works fine with NEWLY started VMs but if the VMs are running
>>>> more than 1-3 days. It stops working and the VMs just crahs during
>>>> migration.
>> Maybe vm running since 1-3 days,have more memory used, so I take more time to live migrate.
>
> I see totally different outputs - the vm crashes and the status output
> stops.
>
> with git from yesterday i'm just getting this:
> ----------------------------------------------------------
> Dec 20 11:34:21 starting migration of VM 100 to node 'cloud1-1203'
> (10.255.0.22)
> Dec 20 11:34:21 copying disk images
> Dec 20 11:34:21 starting VM 100 on remote node 'cloud1-1203'
> Dec 20 11:34:23 ERROR: online migrate failure - command '/usr/bin/ssh -o
> 'BatchMode=yes' root at 10.255.0.22 qm start 100 --stateuri tcp --skiplock
> --migratedfrom cloud1-1202' failed: exit code 255
> Dec 20 11:34:23 aborting phase 2 - cleanup resources
> Dec 20 11:34:24 ERROR: migration finished with problems (duration 00:00:03)
> TASK ERROR: migration problems
> ----------------------------------------------------------
>
>
>> Does it crash at start of the migration ? or in the middle of the migration ?
>
> At the beginning mostly i see no more output after:
> migration listens on port 60000
>
>
>> what is your vm conf ? (memory size, storage ?)
> 2GB mem, RBD / Ceph Storage
>
> Stefan
>