On Thu, Jun 6, 2019 at 6:36 AM Jorge Garcia <jgar...@soe.ucsc.edu> wrote: > > We have been testing a new installation of ceph (mimic 13.2.2) mostly > using cephfs (for now). The current test is just setting up a filesystem > for backups of our other filesystems. After rsyncing data for a few > days, we started getting this from ceph -s: > > health: HEALTH_WARN > 1 MDSs report slow metadata IOs > 1 MDSs behind on trimming > > I have been googling for solutions and reading the docs and the > ceph-users list, but I haven't found a way to get rid of these messages > and get back to HEALTH_OK. Some of the things I have tried (from > suggestions around the internet): > > - Increasing the amount of RAM on the MDS server (Currently 192 GB) > - Increasing mds_log_max_segments (Currently 256) > - Increasing mds_cache_memory_limit > > The message still reports a HEALTH_WARN. Currently, the filesystem is > idle, no I/O happening. Not sure what to try next. Any suggestions? >
maybe mds is trimming its log. please check if mds' cpu usage and whole cluster's IO stats. > Thanks in advance! > > Jorge > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
