Re: pool pgp_num not updated

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OK, so for interventions, I've pushed these configs out:

ceph config set mon.* target_max_misplaced_ratio 0.05  > 0.20
ceph config get osd.* osd_max_backfills 1 > 4
ceph config set osd.* osd_recovery_max_active 1 > 4

And also ran injectargs to push the changes to the OSDs hot. I'll monitor
it for a bit to see how it reacts to the more aggressive settings.

Thanks,

Mac Wynkoop





On Tue, Oct 20, 2020 at 8:52 AM Eugen Block <eblock@xxxxxx> wrote:

> The default for max misplaced objects is this (5%):
>
> ceph-node1:~ # ceph config get mon target_max_misplaced_ratio
> 0.050000
>
> You can increase this for the splitting process but I would recommend
> to rollback as soon as the splitting has finished.
>
>
> Zitat von Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx>:
>
> > On 20/10/2020 11:38 pm, Mac Wynkoop wrote:
> >> Autoscaler isn't on, what part of Ceph is handling the increase of
> pgp_num?
> >> Because I'd like to turn up the rate at which it splits the PG's, but if
> >> autoscaler isn't doing it, I'd have no clue what to adjust. Any ideas?
> >
> > Normal recovery ops I imagine - Bump up the recovery settings, Max
> > Backfills and Recovery Max Active
> >
> > --
> > Lindsay
> > _______________________________________________
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>
>
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