<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hi Sylvain,</div><div><br></div><div>I agree, though I've confirmed that the UID and GID are consistent across both the compute nodes and my Glusterfs nodes. </div><div><br></div><div>JP</div><div><br></div><br><div><div>On Apr 11, 2013, at 11:22 AM, Sylvain Bauza <<a href="mailto:sylvain.bauza@digimind.com">sylvain.bauza@digimind.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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<div class="moz-cite-prefix">Agree.<br>
As for other shared FS, this is *highly* important to make sure
Nova UID and GID are consistent in between all compute nodes. <br>
If this is not the case, then you have to usermod all instances...<br>
<br>
-Sylvain<br>
<br>
Le 11/04/2013 16:49, Razique Mahroua a écrit :<br>
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Hi JP,
<div>my bet is that this is a writing permissions issue. Does nova
has the right to write within the mounted directory?</div>
<div><br>
<div apple-content-edited="true"> <span class="Apple-style-span" style="font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; border-collapse: separate; font-family: 'Lucida Grande'; border-spacing: 0px; -webkit-text-decorations-in-effect: none; "><span class="Apple-style-span" style="font-weight: normal;
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<div style="font-weight: normal; font-family: Helvetica; font-size: medium; font-style: normal; "><font class="Apple-style-span" color="#13708a"><a moz-do-not-send="true" href="mailto:razique.mahroua@gmail.com">razique.mahroua@gmail.com</a></font></div>
<div style="font-family: Helvetica; font-size: medium; font-style: normal; "><font class="Apple-style-span" color="#13708a">Tel :
+33 9 72 37 94 15</font></div>
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<div>Le 11 avr. 2013 à 16:36, John Paul Walters <<a moz-do-not-send="true" href="mailto:jwalters@isi.edu">jwalters@isi.edu</a>>
a écrit :</div>
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<blockquote type="cite">Hi,<br>
<br>
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.<br>
<br>
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:<br>
<br>
First is a qemu-kvm error: could not open disk image
/exports/instances/instances/instance-00000242/disk: Invalid
argument<br>
(full output at <a moz-do-not-send="true" href="http://pastebin.com/i8vzWegJ">http://pastebin.com/i8vzWegJ</a>)<br>
<br>
The second error message comes a short time later ending
with nova.openstack.common.rpc.amqp Invalid: Instance has
already been created<br>
(full output at <a moz-do-not-send="true" href="http://pastebin.com/6Ta4kkBN">http://pastebin.com/6Ta4kkBN</a>)<br>
<br>
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.<br>
<br>
Does anyone have any suggestions?<br>
<br>
thanks,<br>
JP<br>
<br>
<br>
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