What's the CPU busy with while spinning at 100%? Check "perf top" for a quick overview Paul -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90 On Wed, Apr 8, 2020 at 3:09 PM Jack <ceph@xxxxxxxxxxxxxx> wrote: > > I do: > root@backup1:~# ceph config dump | grep snap_trim_sleep > global advanced osd_snap_trim_sleep > 60.000000 > global advanced osd_snap_trim_sleep_hdd > 60.000000 > > (cluster is fully rusty) > > > On 4/8/20 2:53 PM, Dan van der Ster wrote: > > Do you have a custom value for osd_snap_trim_sleep ? > > > > On Wed, Apr 8, 2020 at 2:03 PM Jack <ceph@xxxxxxxxxxxxxx> wrote: > >> > >> I put the nosnaptrim during upgrade because I saw high CPU usage and > >> though it was somehow related to the upgrade process > >> However, all my daemon are now running Octopus, and the issue is still > >> here, so I was wrong > >> > >> > >> On 4/8/20 1:58 PM, Wido den Hollander wrote: > >>> > >>> > >>> On 4/8/20 1:38 PM, Jack wrote: > >>>> Hello, > >>>> > >>>> I've a issue, since my Nautilus -> Octopus upgrade > >>>> > >>>> My cluster has many rbd images (~3k or something) > >>>> Each of them has ~30 snapshots > >>>> Each day, I create and remove a least a snapshot per image > >>>> > >>>> Since Octopus, when I remove the "nosnaptrim" flags, each OSDs uses 100% > >>>> of its CPU time > >>> > >>> Why do you have the 'nosnaptrim' flag set? I'm missing that piece of > >>> information. > >>> > >>>> The whole cluster collapses: OSDs no longer see each others, most of > >>>> them are seens as down .. > >>>> I do not see any progress being made : it does not appear the problem > >>>> will solve by itself > >>>> > >>>> What can I do ? > >>>> > >>>> Best regards, > >>>> _______________________________________________ > >>>> ceph-users mailing list -- ceph-users@xxxxxxx > >>>> To unsubscribe send an email to ceph-users-leave@xxxxxxx > >>>> > >> _______________________________________________ > >> ceph-users mailing list -- ceph-users@xxxxxxx > >> To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |