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Documentation #47176

creating pool doc is very out-of-date

Added by Patrick Donnelly 5 months ago. Updated 2 months ago.

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octopus
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Description

https://docs.ceph.com/docs/master/rados/operations/pools/#create-a-pool

Ideally we shouldn't be talking about PGs much when it comes to creating pools. I think now the recommendation is to set the target size (post-creation) and let the pg_autoscaler worry about changing the PGs. Right? In fact, setting the pg_num on a pool during creation will just get overridden usually by the pg_autoscaler immediately afterwards (unless turned off explicitly).

History

#1 Updated by Anthony D'Atri 2 months ago

FWIW, some admins (including me) have found the PG autoscaler to decrease `pgp_num` far too aggressively, and have seen cluster errors as a result of PG merging.

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