Re: OSD down after PG increase

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2014-03-13 9:02 GMT+01:00 Andrey Korolyov <andrey@xxxxxxx>:
> Yes, if you have essentially high amount of commited data in the cluster
> and/or large number of PG(tens of thousands).

I've increased from 64 to 8192 PGs

> If you have a room to
> experiment with this transition from scratch you may want to play with
> numbers in the OSD` queues since they causing deadlock-like behaviour on
> operations like increasing PG count or large pool deletion. If cluster
> has no I/O at all at the moment, such behaviour is not expected definitely.

My cluster was totally idle, it's a test with ceph-ansible repository and nobody
was using it.
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