Re: [libvirt] ceps-based backing stores
On 10/30/14 01:15, Lyssa P. Livingston wrote:
I have a file with an ceph-based backing store. I run this command:
nova boot vm-clone
where vm-clone is the rbd-backed file. It generates this command:
qemu-img create -f qcow2 -b
rbd:rbdpool/disk/instance-00000002.0.disk:conf=/etc/ceph/ceph.conf:id=admin -F raw
/mnt/novadisk/nova/instances/3efa8a7b-75a8-4695-8fdd-659185c46b7d/disk
and I am getting this error:
error: internal error: backing store parser is not implemented for protocol rbd
Libvirt is parsing the information saved in the backing store field of
an image to re-create the backing chain structure in memory.
Unfortunately I didn't implement all the possible formats for this as
there's a lot of them and one of the missing pieces is the colon syntax
for RBD volumes.
I'll try to come up with a patch for this that will allow to recognize
the RBD volume as a remote one where libvirt isn't able to access it and
allow to start the VM.
I was under the impression that qemu could work with ceph-based backing stores, so is
there something I should run first, or files that I should patch, or ... ??? I am running
libvirt 1.2.9. Thanks for any assistance you can provide.
Qemu is able to handle those. Libvirt currently doesn't support the syntax.
Lyssa
Peter
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