[one-users] Configuring Ceph datastore 4.6

[Steven Timm]

The first and most obvious problem below was that we were running an
old version of qemu-img and qemu-kvm that ships with RHEL6/Centos6/SL6
that doesn't support the "rbd" format.  We were able to find
a modified version that the Ceph people had back-ported and now
we can import an image into the datastore and have
gotten as far to getting a deployment.0 written on the hypervisor.
It can't contact Ceph as yet, is getting connection refused but
we think that is an authentication issue.

http://ceph.com/packages/qemu-kvm/redhat/x86_64/
is where these packages for 6.2 live.

Hopefully this all gets easier pretty soon now that RedHat has bought Ceph
and all the right packages will be in RHEL7.  Or will they be only 
proprietarily available in Redhat Enterprise Virtualization?  Has anyone 
tried yet?

Steve



On Wed, 10 Sep 2014, Steven Timm wrote:

>
>
> I have configured a Ceph datastore on one 4.6 and have gotten as
> far as to get opennebula to accept the datastore.  But when we
> try to do the first oneimage create into the datastore we get the
> following error in oned.log :
>
> Wed Sep 10 13:10:44 2014 [ImM][I]: Command execution fail: 
> /var/lib/one/remotes/datastore/ceph/cp 
> 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 
> 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 
> 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 
> 18
> Wed Sep 10 13:10:44 2014 [ImM][I]: cp: Copying local image 
> /cloud/images/timm/40gb.qcow2 to the image repository
> Wed Sep 10 13:10:44 2014 [ImM][E]: cp: Command "    set -e
> Wed Sep 10 13:10:44 2014 [ImM][I]:
> Wed Sep 10 13:10:44 2014 [ImM][I]: if [ "" = "2" ]; then
> Wed Sep 10 13:10:44 2014 [ImM][I]: FORMAT=$(qemu-img info 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c | grep "^file format:" 
> | awk '{print }')
> Wed Sep 10 13:10:44 2014 [ImM][I]:
> Wed Sep 10 13:10:44 2014 [ImM][I]: if [ "$FORMAT" != "raw" ]; then
> Wed Sep 10 13:10:44 2014 [ImM][I]: qemu-img convert -O raw 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c.raw
> Wed Sep 10 13:10:44 2014 [ImM][I]: mv 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c.raw 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c
> Wed Sep 10 13:10:44 2014 [ImM][I]: fi
> Wed Sep 10 13:10:44 2014 [ImM][I]:
> Wed Sep 10 13:10:44 2014 [ImM][I]: rbd import --format 2 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c one/one-18
> Wed Sep 10 13:10:44 2014 [ImM][I]: else
> Wed Sep 10 13:10:44 2014 [ImM][I]: qemu-img convert 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c rbd:one/one-18
> Wed Sep 10 13:10:44 2014 [ImM][I]: fi
> Wed Sep 10 13:10:44 2014 [ImM][I]:
> Wed Sep 10 13:10:44 2014 [ImM][I]: # remove original
> Wed Sep 10 13:10:44 2014 [ImM][I]: rm -f 
> /var/lib/one/ceph-tmp/68bec7e25cb73c98a31a48117022d72c" failed: Unknown 
> protocol 'rbd:one/one-18'
> Wed Sep 10 13:10:44 2014 [ImM][E]: Error registering one/one-18 in one4dev
> Wed Sep 10 13:10:44 2014 [ImM][I]: ExitCode: 1
> Wed Sep 10 13:10:44 2014 [ImM][E]: Error copying image in the datastore: 
> Error registering one/one-18 in one4dev
>
>
>
>
> ---
>
> Clear we are afailed to register the rbd, but not clear why.. any
> or clues on why we failed are helpful.
> Several places in the docs refer to libvirt 1.x.  Has anyone
> made this work on RHEL6/Centos 6 (we are running the newer kernel so
> we do have the rbd.o kernel module available, and rbd import/export
> works from the command line.)
>
> Steve Timm
>
>
> ------------------------------------------------------------------
> Steven C. Timm, Ph.D  (630) 840-8525
> timm at fnal.gov  http://home.fnal.gov/~timm/
> Fermilab Scientific Computing Division, Scientific Computing Services Quad.
> Grid and Cloud Services Dept., Associate Dept. Head for Cloud Computing
>

------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm at fnal.gov  http://home.fnal.gov/~timm/
Fermilab Scientific Computing Division, Scientific Computing Services Quad.
Grid and Cloud Services Dept., Associate Dept. Head for Cloud Computing