Hi Jeff, I would be surprised as well - we initially tested on a 2-replica cluster with 8 nodes having 12 osd each - and went to 3-replica as we re-built the cluster.
The performance seems to be where I'd expect it (doing consistent writes in a rbd VM @ ~400MB/sec on 10GbE which I'd expect is either a limit in disks, network, qemu/kvm or the 3-replica setup kicking in) Just curious, anything in dmesg about the disk mounted as osd.4? Cheers, Martin On Tue, Aug 20, 2013 at 4:02 PM, Mark Nelson <mark.nel...@inktank.com>wrote: > On 08/20/2013 08:42 AM, Jeff Moskow wrote: > >> Hi, >> >> More information. If I look in /var/log/ceph/ceph.log, I see 7893 slow >> requests in the last 3 hours of which 7890 are from osd.4. Should I >> assume a bad drive? I SMART says the drive is healthy? Bad osd? >> > > Definitely sounds suspicious! Might be worth taking that OSD out and > doing some testing on the drive. > > >> Thanks, >> Jeff >> >> > ______________________________**_________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/**listinfo.cgi/ceph-users-ceph.**com<http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com> >
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