On Fri, Jun 1, 2018 at 3:54 PM Stefan Hajnoczi <[email protected]> wrote:

> On Thu, May 31, 2018 at 11:02:01PM +0300, Nir Soffer wrote:
> > On Thu, May 31, 2018 at 1:55 AM Bernhard Dick <[email protected]> wrote:
> >
> > > Hi,
> > >
> > > I found the reason for my timeout problems: It is the version of
> librbd1
> > > (which is 0.94.5) in conjunction with my CEPH test-environment which is
> > > running the luminous release.
> > > When I install the librbd1 (and librados2) packages from the
> > > centos-ceph-luminous repository (version 12.2.5) I'm able to start and
> > > migrate VMs inbetween the hosts.
> > >
> >
> > vdsm does not require librbd since qemu brings this dependency, and vdsm
> > does not access ceph directly yet.
> >
> > Maybe qemu should require newer version of librbd?
>
> Upstream QEMU builds against any librbd version that exports the
> necessary APIs.
>
> The choice of library versions is mostly up to distro package
> maintainers.
>
> Have you filed a bug against Ceph on the distro you are using?
>

Thanks for clearing this up Stefan.

Bernhard, can you give more info about your Linux version and
installed packages (.e.g qemu-*)?

 Nir

> > Am 25.05.2018 um 17:08 schrieb Bernhard Dick:
> > > > Hi,
> > > >
> > > > as you might already know I try to use ceph with openstack in an
> oVirt
> > > > test environment. I'm able to create and remove volumes. But if I
> try to
> > > > run a VM which contains a ceph volume it is in the "Wait for launch"
> > > > state for a very long time. Then it gets into "down" state again. The
> > > > qemu log states
> > > >
> > > > 2018-05-25T15:03:41.100401Z qemu-kvm: -drive
> > > >
> > >
> file=rbd:rbd/volume-3bec499e-d0d0-45ef-86ad-2c187cdb2811:id=cinder:auth_supported=cephx\;none:mon_host=[mon0]\:6789\;[mon1]\:6789,file.password-secret=scsi0-0-0-0-secret0,format=raw,if=none,id=drive-scsi0-0-0-0,serial=3bec499e-d0d0-45ef-86ad-2c187cdb2811,cache=none,werror=stop,rerror=stop,aio=threads:
> > >
> > > > error connecting: Connection timed out
> > > >
> > > > 2018-05-25 15:03:41.109+0000: shutting down, reason=failed
> > > >
> > > > On the monitor hosts I see traffic with the ceph-mon-port, but not on
> > > > other ports (the osds for example). In the ceph logs however I don't
> > > > really see what happens.
> > > > Do you have some tips how to debug this problem?
> > > >
> > > >    Regards
> > > >      Bernhard
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>

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