Re: QEMU/Libvirt + librbd issue using Luminous 12.2.7

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Can you collect any librados / librbd debug logs and provide them via
pastebin? Just add / tweak the following in your "/etc/ceph/ceph.conf"
file's "[client]" section and re-run to gather the logs.

[client]
log file = /path/to/a/log/file
debug ms = 1
debug monc = 20
debug objecter = 20
debug rados = 20
debug rbd = 20
On Mon, Aug 20, 2018 at 12:55 PM Andre Goree <agoree@xxxxxxxxxxxxxxxxxx> wrote:
>
> This issue first started while using Luminous 12.2.5, I upgraded to 12.2.7 and it's still present.  This issue is _not_ present in 12.2.4.
>
> With Ceph 12.2.4, using QEMU/KVM + Libvirt, I'm able to mount an rbd image using the following syntax and populated xml:
>
> 'virsh attach-device $vm foo.xml --persistent'
>
> xml contents:
> <disk type='network' device='disk' snapshot='no'>
>  <driver name='qemu' type='raw' cache='writeback' discard='unmap'/>
>   <source protocol='rbd' name='libvirt-pool/foo'>
>     <host name='X.X.X.X' port='xxxx'/>
>     <host name='X.X.X.X' port='xxxx'/>
>     <host name='X.X.X.X' port='xxxx'/>
>    </source>
>    <auth username='libvirt'>
>      <secret type='ceph' uuid='XXXX'/>
>    </auth>
>    <target dev='sdb' bus='scsi'/>
>    <shareable/>
> </disk>
>
> I receive this error:
> ~# virsh attach-device $vm foo.xml --persistent
> error: Failed to attach device from foo.xml
> error: internal error: unable to execute QEMU command 'device_add': Property 'scsi-hd.drive' can't find value 'drive-scsi0-0-0-1'
>
> I've tried different things with the XML, but nothing seems to work, always failing with the above error.  This does _not_ happen with our cluster running 12.2.4, the same exact command with a cluster using an identical configuration (for all intents and purposes).
>
> Any thoughts?  Hard to believe I'm the only one to hit this if it's indeed a bug, but I haven't found anyone else having the issue through interweb searches.
> _______________________________________________
> ceph-users mailing list
> ceph-users@xxxxxxxxxxxxxx
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com



-- 
Jason
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