Re: Ceph recovery network speed

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On 6/29/22 15:14, Curt wrote:



Hi Stefan,

Good to know.  I see the default if .05 for misplaced_ratio.  What do you recommend would be a safe number to increase it to?

It depends. It might be safe to put it to 1. But I would slowly increase it, have the manager increase pgp_num and see how the cluster copes with the increased load. If you have hardly any client workload you might bump this ratio quite a bit. At some point you would need to increase osd max backfill to avoid having PGs waiting on backfill.

Gr. Stefan
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