Jens-Christian Fischer <jens-christian.fischer@...> writes: > > I think we (i.e. Christian) found the problem: > We created a test VM with 9 mounted RBD volumes (no NFS server). As soon as he hit all disks, we started to experience these 120 second timeouts. We realized that the QEMU process on the hypervisor is opening a TCP connection to every OSD for every mounted volume - exceeding the 1024 FD limit. > > So no deep scrubbing etc, but simply to many connections…
Have seen mention of similar from CERN in their presentations, found this post on a quick google.. might help? http://lists.ceph.com/pipermail/ceph-users-ceph.com/2013- December/026187.html Cheers, Trent _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
