Dear All,
We have a new Nautilus cluster, used for cephfs, with pg_autoscaler in
warn mode.
Shortly after hitting 62% full, the autoscaler started warning that we
have too few pg:
*********************************************************
Pool ec82pool has 4096 placement groups, should have 16384
*********************************************************
The pool is 62% full, we have 450 OSD, and are using 8 k=8 m=2 Erasure
encoding.
Does 16384 pg seem reasonable?
The on-line pg calculator suggests 4096...
https://ceph.io/pgcalc/
(Size = 10, OSD=450, %Data=100, Target OSD 100)
many thanks,
Jake
--
MRC Laboratory of Molecular Biology
Francis Crick Avenue,
Cambridge CB2 0QH, UK.
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