Re: Calculating required number of PGs per pool

Ирек Фасихов <malmyzh@xxxxxxxxx> · Fri, 24 Jan 2014 13:51:27 +0400



Hi.Please read: http://ceph.com/docs/master/rados/operations/placement-groups/


2014/1/24 Graeme Lambert <glambert@xxxxxxxxxxx>


    Hi,

    
    I've got 6 OSDs and I want 3 replicas per object, so following the
    function that's 200 PGs per OSD, which is 1,200 overall.

    
    I've got two RBD pools and the .rgw.buckets pool that are
    considerably higher in the number of objects it has compared to the
    others (given that RADOS gateway needs so many pools with very
    little in them).

    
    How can I get the ratio of PGs to objects to be consistent across
    all of the pools to avoid the health warnings of:

    
    HEALTH_WARN pool [pool-name] has too few pgs

    -- 

      Best regards

         
      Graeme
      

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-- 
С уважением, Фасихов Ирек НургаязовичМоб.: +79229045757

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