[pve-devel] [PATCH V2] - fix setting migration parameters

[Alexandre DERUMIER]

>>If we use qemu defaults why is then every vm using migrate_downtime broken? The value is still set if somebody has it specified in vm conf. To me values bigger than 0.5 do not work at all no idea why. Maybe cause >>qemu guesses it can migrate the vm in 1s but than can't manage that. 

Maybe can we add an global option migrate_downtime in /etc/datacenter.cfg to override default value ?


----- Mail original ----- 

De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag> 
À: "Dietmar Maurer" <dietmar at proxmox.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Jeudi 27 Décembre 2012 07:34:32 
Objet: Re: [pve-devel] [PATCH V2] - fix setting migration parameters 

Hi, 

Am 27.12.2012 um 07:27 schrieb Dietmar Maurer <dietmar at proxmox.com>: 
>> A value of 1 does not work for me. Whole vm stalls immediately and socket 
>> is unavailable. Migration than takes 5-10 minutes of an idle vm. 
> 
> So this is a qemu bug - we should try to fix that. 
Fine but I can't ... 

> Else any VM which use migrate_downtime is broken! 
If we use qemu defaults why is then every vm using migrate_downtime broken? The value is still set if somebody has it specified in vm conf. To me values bigger than 0.5 do not work at all no idea why. Maybe cause qemu guesses it can migrate the vm in 1s but than can't manage that. 

Stefan 
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