Hi,
Am 3/11/25 um 11:33 schrieb Frédéric Nass:
$ cephadm shell --name osd.OSD_ID --fsid $(ceph fsid) ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-OSD_ID --sharding="m(3) p(3,0-12) O(3,0-13)=block_cache={type=binned_lru} L P" reshard
As a consequence, the 'Object' key/value pairs were stored in the default column family instead of the intended 'O' column family. Resharding again with the correct capital 'O' resolved this issue for the affected overspilling OSDs.
Be aware that there remains an error in both the Quincy and Reef documentation, where the letters 'l' and 'p' should actually be uppercase 'L' and 'P'. Using lowercase 'l' and 'p' wrecks the OSD entirely.
I've created this tracker [1] in hopes of getting the Quincy and Reef documentation fixed.
The latest docs seems to have it correct:
https://docs.ceph.com/en/latest/rados/configuration/bluestore-config-ref/#rocksdb-sharding
Is there a reason why you omitted "=min_write_buffer_number_to_merge=32" after L and P?
These are the default values that I also see on my reef cluster.
Regards
--
Robert Sander
Linux Consultant
Heinlein Consulting GmbH
Schwedter Str. 8/9b, 10119 Berlin
https://www.heinlein-support.de
Tel: +49 30 405051 - 0
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