Thanks for your reply. That was good to know, and I will check git as well.
Thanks, Kinjo On Sat, Jul 4, 2015 at 10:00 PM, Dan van der Ster <[email protected]> wrote: > http://ceph.com/releases/v0-80-8-firefly-released/ > > osd: fix snap trimming performance issues #9487 #9113 > > Cheers, Dan > On Jul 4, 2015 1:37 PM, "Shinobu Kinjo" <[email protected]> wrote: > >> Can you tell us when it was fixed so that we see this fix on github? >> >> Kinjo >> >> On Sat, Jul 4, 2015 at 8:08 PM, Dan van der Ster <[email protected]> >> wrote: >> >>> Hi, >>> >>> You should upgrade to the latest firefly release. Your probably >>> suffering from the known issue with snapshot trimming. >>> >>> Cheers, Dan >>> >>> On Jul 4, 2015 10:19, "Eino Tuominen" <[email protected]> wrote: >>> > >>> > Hello, >>> > >>> > We are running 0.80.5 on our production cluster and we are seeing slow >>> requests when deleting rbd snapshots. We have now reduced snapshot counts >>> to 4 weeklies but it seems that the snapshot count is not a factor of this >>> problem. The cluster is practically unresponsive so long that clients >>> timeout. >>> > >>> > Here are top ten slowest requests per osd from last night (times in >>> seconds): >>> > >>> > 1 /var/log/ceph/ceph-osd.46.log 1920 >>> > 2 /var/log/ceph/ceph-osd.42.log 1455 >>> > 3 /var/log/ceph/ceph-osd.74.log 1292 >>> > 4 /var/log/ceph/ceph-osd.77.log 1170 >>> > 5 /var/log/ceph/ceph-osd.48.log 1083 >>> > 6 /var/log/ceph/ceph-osd.0.log 960 >>> > 7 /var/log/ceph/ceph-osd.40.log 960 >>> > 8 /var/log/ceph/ceph-osd.57.log 960 >>> > 9 /var/log/ceph/ceph-osd.61.log 960 >>> > 10 /var/log/ceph/ceph-osd.76.log 960 >>> > >>> > Some OSDs don't report slow requests at all, they are not evenly >>> distributed. >>> > >>> > Currently we run journals on the osd sata drives, but are considering >>> upgrading to SSD journals. However, we do not have any performance problems >>> other than when deleting snapshots. >>> > >>> > Is there any way to mitigate the problem other than investing on SSD >>> journals? >>> > >>> > -- >>> > Eino Tuominen >>> > _______________________________________________ >>> > ceph-users mailing list >>> > [email protected] >>> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >>> _______________________________________________ >>> ceph-users mailing list >>> [email protected] >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >>> >> >> >> -- >> Life w/ Linux <http://i-shinobu.hatenablog.com/> >> > -- Life w/ Linux <http://i-shinobu.hatenablog.com/>
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