<div dir="ltr"><div>Just to clarify: the Cinder Gluster driver, which is comparable to the Cinder NFS driver, uses FUSE:</div><div><br></div><div><a href="https://github.com/openstack/cinder/blob/master/cinder/volume/drivers/glusterfs.py#L489-L499">https://github.com/openstack/cinder/blob/master/cinder/volume/drivers/glusterfs.py#L489-L499</a><br></div><div><br></div><div>Unless I'm mistaken, bootable volumes with Nova will use libgfapi (if configured with qemu_allowed_storage_drivers), but the best ephemeral instances can do is store the instances on a GlusterFS mounted /var/lib/nova/instances. </div><div><br></div><div>We've also seen performance issues when running ephemeral instances on a glusterfs mounted directory. However, we're using the Gluster Cinder driver for volumes and have been mostly happy with it. </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 24, 2015 at 9:22 AM, Joe Julian <span dir="ltr"><<a href="mailto:joe@julianfamily.org" target="_blank">joe@julianfamily.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Nova ephemeral disks don't use libgfapi, only Cinder volumes. <br><br><div class="gmail_quote"><div><div class="h5">On March 24, 2015 7:27:52 AM PDT, marianna cattani <<a href="mailto:marianna.cattani@gmail.com" target="_blank">marianna.cattani@gmail.com</a>> wrote:</div></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div class="h5">
<div dir="ltr">Openstack doesn't have vsdm, it should be a configuration option: "qemu_allowed_storage_drivers=gluster"<div><br></div><div>But, however , the machine is generated with the xml that you see.<br></div><div><br></div><div>Now I try to write to the OpenStack's mailing list .<br></div><div><br></div><div>tnx</div><div><br></div><div>M</div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-03-24 15:14 GMT+01:00 noc <span dir="ltr"><<a href="mailto:noc@nieuwland.nl" target="_blank">noc@nieuwland.nl</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>On 24-3-2015 14:39, marianna cattani wrote:<br>
> Many many thanks !!!!<br>
><br>
> Mine is different !!!!<br>
><br>
> :'(<br>
><br>
> root@nodo-4:~# virsh -r dumpxml instance-0000002c | grep disk<br>
> <disk type='file' device='disk'><br>
> <source<br>
> file='/var/lib/nova/instances/ef84920d-2009-42a2-90de-29d9bd5e8512/disk'/><br>
> <alias name='virtio-disk0'/><br>
> </disk><br>
><br>
><br>
</span>Thats a fuse connection. I'm running ovirt + glusterfs where vdsm is a<br>
special version with libgfapi support. Don't know if Openstack has that too?<br>
<br>
Joop<br>
<br>
</blockquote></div><br></div>
<p style="margin-top:2.5em;margin-bottom:1em;border-bottom:1px solid #000"></p></div></div><span class=""><pre><hr><br>Gluster-users mailing list<br><a href="mailto:Gluster-users@gluster.org" target="_blank">Gluster-users@gluster.org</a><br><a href="http://www.gluster.org/mailman/listinfo/gluster-users" target="_blank">http://www.gluster.org/mailman/listinfo/gluster-users</a></pre></span></blockquote></div><span class="HOEnZb"><font color="#888888"><br>
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