On 2020-08-27 13:29, Marcel Kuiper wrote: > Sorry that had to be Wido/Stefan What does "ceph osd df" give you? There is a column with "OMAP" and "META". OMAP is ~ 13 B, META 26 GB in our setup. Quite a few files in cephfs (main reason we have large OMAP). > > Another question is: hoe to use this ceph-kvstore-tool tool to compact the > rocksdb? (can't find a lot of examples) If you want to do a whole host a the time: systemctl stop ceph-osd.target wait a few seconds till all processes are closed. for osd in `ls /var/lib/ceph/osd/`; do (ceph-kvstore-tool bluestore-kv /var/lib/ceph/osd/$osd compact &);done This works for us (no seperate WAL/DB). Check the help of the ceph-kvstore-tool if you have to do anything special with separate DB / WAL devices. Gr. Stefan _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx