[Users] Migration failed (previous migrations succeded)

[Itamar Heim]

On 01/31/2014 09:30 AM, Sven Kieske wrote:
> Hi,
>
> is there any documentation regarding all
> allowed settings in the vdsm.conf?
>
> I didn't find anything related in the rhev docs

that's a question for vdsm mailing list - cc-ing...

>
> Am 30.01.2014 21:43, schrieb Itamar Heim:
>> On 01/30/2014 10:37 PM, Markus Stockhausen wrote:
>>>>> Von: Itamar Heim [iheim at redhat.com]
>>>>> Gesendet: Donnerstag, 30. Januar 2014 21:25
>>>>> An: Markus Stockhausen; ovirt-users
>>>>> Betreff: Re: [Users] Migration failed (previous migrations succeded)
>>>>>
>>>>>
>>>>> Now I' getting serious problems. During the migration the VM was
>>>>> doing a rather slow download at 1,5 MB/s. So the memory changed
>>>>> by 15 MB per 10 seconds. No wonder that a check every 10 seconds
>>>>> was not able to see any progress. Im scared what will happen if I
>>>>> want to migrate a medium loaded system runing a database.
>>>>>
>>>>> Any tip for a parametrization?
>>>>>
>>>>> Markus
>>>>>
>>>>
>>>> what's the bandwidth? default is up to 30MB/sec, to allow up to 3 VMs to
>>>> migrate on 1Gb without congesting it.
>>>> you could raise that if you have 10GB, or raise the bandwidth cap and
>>>> reduce max number of concurrent VMs, etc.
>>>
>>> My migration network is IPoIB 10GBit. During our tests only one VM
>>> was migrated.  Bandwidth cap or number of concurrent VMs has not
>>> been changed after default install.
>>>
>>> Is migration_max_bandwidth in /etc/vdsm/vdsm.conf still the right place?
>>
>> probably
>>
>>> And what settings do you suggest?
>>
>> well, to begin with, 300MB/sec on 10GE (still allowing concurrent
>> migrations)
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>>
>>
>