Open Stack

Agree.
As for other shared FS, this is *highly* important to make sure Nova UID 
and GID are consistent in between all compute nodes.
If this is not the case, then you have to usermod all instances...

-Sylvain

Le 11/04/2013 16:49, Razique Mahroua a écrit :
> Hi JP,
> my bet is that this is a writing permissions issue. Does nova has the 
> right to write within the mounted directory?
>
> *Razique Mahroua** - **Nuage & Co*
> razique.mahroua at gmail.com <mailto:razique.mahroua at gmail.com>
> Tel : +33 9 72 37 94 15
>
>
>
> Le 11 avr. 2013 à 16:36, John Paul Walters <jwalters at isi.edu 
> <mailto:jwalters at isi.edu>> a écrit :
>
>> Hi,
>>
>> We've started implementing a Glusterfs-based solution for instance 
>> storage in order to provide live migration.  I've run into a strange 
>> problem when using a multi-node Gluster setup that I hope someone has 
>> a suggestion to resolve.
>>
>> I have a 12 node distributed/replicated Gluster cluster.  I can mount 
>> it to my client machines, and it seems to be working alright.  When I 
>> launch instances, the nova-compute log on the client machines are 
>> giving me two error messages:
>>
>> First is a qemu-kvm error: could not open disk image 
>> /exports/instances/instances/instance-00000242/disk: Invalid argument
>> (full output at http://pastebin.com/i8vzWegJ)
>>
>> The second error message comes a short time later ending with 
>> nova.openstack.common.rpc.amqp Invalid: Instance has already been created
>> (full output at http://pastebin.com/6Ta4kkBN)
>>
>> This happens reliably with the multi-Gluster-node setup.  Oddly, 
>> after creating a test Gluster volume composed of a single brick and 
>> single node, everything works fine.
>>
>> Does anyone have any suggestions?
>>
>> thanks,
>> JP
>>
>>
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