Just to clarify: the Cinder Gluster driver, which is comparable to the Cinder NFS driver, uses FUSE:
https://github.com/openstack/cinder/blob/master/cinder/volume/drivers/glusterfs.py#L489-L499 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. 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. On Tue, Mar 24, 2015 at 9:22 AM, Joe Julian <j...@julianfamily.org> wrote: > Nova ephemeral disks don't use libgfapi, only Cinder volumes. > > On March 24, 2015 7:27:52 AM PDT, marianna cattani < > marianna.catt...@gmail.com> wrote: > >> Openstack doesn't have vsdm, it should be a configuration option: >> "qemu_allowed_storage_drivers=gluster" >> >> But, however , the machine is generated with the xml that you see. >> >> Now I try to write to the OpenStack's mailing list . >> >> tnx >> >> M >> >> 2015-03-24 15:14 GMT+01:00 noc <n...@nieuwland.nl>: >> >>> On 24-3-2015 14:39, marianna cattani wrote: >>> > Many many thanks !!!! >>> > >>> > Mine is different !!!! >>> > >>> > :'( >>> > >>> > root@nodo-4:~# virsh -r dumpxml instance-0000002c | grep disk >>> > <disk type='file' device='disk'> >>> > <source >>> > >>> file='/var/lib/nova/instances/ef84920d-2009-42a2-90de-29d9bd5e8512/disk'/> >>> > <alias name='virtio-disk0'/> >>> > </disk> >>> > >>> > >>> Thats a fuse connection. I'm running ovirt + glusterfs where vdsm is a >>> special version with libgfapi support. Don't know if Openstack has that >>> too? >>> >>> Joop >>> >>> >> ------------------------------ >> >> Gluster-users mailing list >> Gluster-users@gluster.org >> http://www.gluster.org/mailman/listinfo/gluster-users >> >> > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > > _______________________________________________ > Gluster-users mailing list > Gluster-users@gluster.org > http://www.gluster.org/mailman/listinfo/gluster-users >
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