[pve-devel] [PATCH 3/3] add downtime && expected_downtime query-migrate info

[Alexandre DERUMIER]

mmm, the migration code in qemu.git seem to be unstable. (as it's pretty new)

with high memory transfer, I have a some paused target vm, status:internal-error, no way to unpause them.

But if it's work fine for you with 1s migrate_downtime, we need to find where the problem is in the current qemu 1.3 code ... (maybe qemu mailing can help)



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

De: "Stefan Priebe" <s.priebe at profihost.ag> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com, "Dietmar Maurer" <dietmar at proxmox.com> 
Envoyé: Jeudi 27 Décembre 2012 15:19:41 
Objet: Re: [pve-devel] [PATCH 3/3] add downtime && expected_downtime query-migrate info 

Strangely the status of the VM is always paused after migration. 

Stefan 
Am 27.12.2012 15:18, schrieb Stefan Priebe: 
> Hi, 
> 
> have now done the same. 
> 
> With current git qemu migration is really fast using 1,6GB memory: 
> Dec 27 15:17:45 starting migration of VM 105 to node 'cloud1-1202' 
> (10.255.0.20) 
> Dec 27 15:17:45 copying disk images 
> Dec 27 15:17:45 starting VM 105 on remote node 'cloud1-1202' 
> Dec 27 15:17:48 starting online/live migration on tcp:10.255.0.20:60000 
> Dec 27 15:17:48 migrate_set_speed: 8589934592 
> Dec 27 15:17:48 migrate_set_downtime: 0.05 
> Dec 27 15:17:52 migration speed: 512.00 MB/s - downtime 174 ms 
> Dec 27 15:17:52 migration status: completed 
> Dec 27 15:17:53 migration finished successfuly (duration 00:00:09) 
> TASK OK 
> 
> It's so fast that i can't check if i see that's while migrating. 
> 
> Greets, 
> Stefan 
> 
> Am 27.12.2012 14:26, schrieb Alexandre DERUMIER: 
>>>> The problem is the LATEST git qemu code they've changed a LOT of 
>>>> include 
>>>> file locations so nearly NO PVE patch applies... 
>> 
>> I'm currently building a pve-qemu-kvm on qemu 1.4, with basics patches 
>> 
>> fr-ca-keymap-corrections.diff 
>> fairsched.diff 
>> pve-auth.patch 
>> vencrypt-auth-plain.patch 
>> enable-kvm-by-default.patch 
>> 
>> should be enough to connect with vnc and test migration 
>> 
>> I'll keep in touch 
>> 
>> 
>> 
>> ----- Mail original ----- 
>> 
>> De: "Stefan Priebe" <s.priebe at profihost.ag> 
>> À: "Alexandre DERUMIER" <aderumier at odiso.com> 
>> Cc: pve-devel at pve.proxmox.com, "Dietmar Maurer" <dietmar at proxmox.com> 
>> Envoyé: Jeudi 27 Décembre 2012 13:40:24 
>> Objet: Re: [pve-devel] [PATCH 3/3] add downtime && expected_downtime 
>> query-migrate info 
>> 
>> Hi, 
>> Am 27.12.2012 13:39, schrieb Alexandre DERUMIER: 
>>>>> not right now - but i tested this yesterday and didn't saw a 
>>>>> difference 
>>>>> so i moved again to 3.6.11. 
>>> It'll do test with a 3.6 kernel too, to see if I have a difference 
>> 
>> Thanks! Will retest with pve kernel too. 
>> 
>>> Do you have tried with last qemu 1.4 git ? 
>>> Because I'm looking into the code, and the change in migration code 
>>> is really huge. 
>>> So we could known if it's a qemu migration code problem or not... 
>> 
>> The problem is the LATEST git qemu code they've changed a LOT of include 
>> file locations so nearly NO PVE patch applies... 
>> 
>> Stefan 
>>