Re: Does CEPH limit the pgp_num which it will increase in one go?

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Den tis 15 feb. 2022 kl 08:56 skrev Maarten van Ingen
<maarten.vaningen@xxxxxxx>:
> Hi,
> After enabling the balancer (and set to upmap) on our environment it’s time to get the pgp_num on one of the pools on par with the pg_num.
> This pool has pg_num set to 4096 and pgp_num to 2048 (by our mistake).
> I just set the pgp_num to 2248 to keep data movement in check.
> Oddly enough I see it’s only increased to 2108, also it’s odd we now get this health warning: 1 pools have pg_num > pgp_num, which we haven’t seen before…

That warning is 100% correct and expected when you set pg_num to
<large number> and the pgp_num gradually moves towards this larger
target number.

In itself, nothing to worry about, this is exactly what ceph -s should
be saying until pgp_num also becomes 4096. More or less a warning to
say "don't forget to make bumps of pgp_num until it matches pg_num".

-- 
May the most significant bit of your life be positive.
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