Hi!
Not sure this question is a good fit for this mailing list, but the subject
appears to be undocumented, and I'm not getting any response from
ceph-users.
Monitors in our 16.2.14 cluster appear to quite often run "manual
compaction" tasks, usually more than once per minute. During each
compaction the monitor process writes approximately 500-600 MB of data to
disk over a short period of time. These writes add up to tens of gigabytes
per hour and hundreds of gigabytes per day, reducing .
Monitor rocksdb and compaction options are default:
"mon_compact_on_bootstrap": "false",
"mon_compact_on_start": "false",
"mon_compact_on_trim": "true",
"mon_rocksdb_options":
"write_buffer_size=33554432,compression=kNoCompression,level_compaction_dynamic_level_bytes=true",
Where can I find some documentation regarding rocksdb usage by monitors?
How can I ascertain where this is expected behavior, or whether this is
something I can adjust?
I would appreciate your advice and/or direction towards the relevant
documentation.
Best regards,
Zakhar