[ovirt-users] Re: Debugging ceph access

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. Regards Bernhard 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