Re: Including pool_id in the crush hash ? FLAG_HASHPSPOOL ?

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On Mon, Jul 15, 2013 at 2:03 AM, Sylvain Munaut
<s.munaut@xxxxxxxxxxxxxxxxxxxx> wrote:
> Hi,
>
>>> I'd like the pool_id to be included in the hash used for the PG, to
>>> try and improve the data distribution. (I have 10 pool).
>>>
>>> I see that there is a flag named FLAG_HASHPSPOOL. Is it possible to
>>> enable it on existing pool ?
>>
>> Hmm, right now there is not. :( I've made a ticket:
>> http://tracker.ceph.com/issues/5614
>
> And when creating a new pool (in cuttlefish) is there a way to specify it ?
> (I know it's the default now, but that wasn't the case for the last
> cuttlefish release AFAIK).

It's a monitor config option you can set: osd_pool_default_flag_hashpspool
-Greg
Software Engineer #42 @ http://inktank.com | http://ceph.com
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