I have seen significant increases (1GB -> 8GB) proportional to number of inodes open, just like the MDS cache grows. These went away once the stat-heavy workloads (multiple parallel rsyncs) stopped. I disabled autoscale warnings on the metadata pools due to this fluctuation. On Thu, Jul 25, 2019 at 1:31 PM Dietmar Rieder <dietmar.rieder@xxxxxxxxxxx> wrote: > > On 7/25/19 11:55 AM, Konstantin Shalygin wrote: > >> we just recently upgraded our cluster from luminous 12.2.10 to nautilus > >> 14.2.1 and I noticed a massive increase of the space used on the cephfs > >> metadata pool although the used space in the 2 data pools basically did > >> not change. See the attached graph (NOTE: log10 scale on y-axis) > >> > >> Is there any reason that explains this? > > > > Dietmar, how your metadata usage now? Is stop growing? > > it is stable now and only changes as the number of files in the FS changes. > > Dietmar > > -- > _________________________________________ > D i e t m a r R i e d e r, Mag.Dr. > Innsbruck Medical University > Biocenter - Division for Bioinformatics > Innrain 80, 6020 Innsbruck > Phone: +43 512 9003 71402 > Fax: +43 512 9003 73100 > Email: dietmar.rieder@xxxxxxxxxxx > Web: http://www.icbi.at > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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