27 Mar
2023
27 Mar
'23
1:33 p.m.
What I also see is that I have three OSDs that have quite a lot of
data, in compare to other OSDs (~20 time higher). I don't know if
OMAP this
is an issue:
I have on 2TB ssd's with 2GB - 4GB omap data, while on 8TB hdd's the omap data is only 53MB - 100MB. Should I manually clean this? (how? :))
The amount of omap data depends on multiple things, especially the use- case. If a given OSD is only used for RBD, it will have a different omap experience than if it were used for an RGW index pool.
This (mine) is mostly an rbd cluster. Is it correct that compacting leveldb is addressing 'cleaning omap data'? And this can only be done by setting leveldb_compact_on_mount = true in ceph.conf and restarting the osd?