2013/7/12 Mark Nelson <mark.nelson@xxxxxxxxxxx>: > At large numbers of PGs it may not matter very much, but I don't think it > would hurt either! > > Basically this has to do with how ceph_stable_mod works. At > non-power-of-two values, the bucket counts aren't even, but that's only a > small part of the story and may ultimately only have a small effect on the > distribution unless the PG count is small. In case of 12 OSDs for each node, and a cluster made with 18 storage nodes are you suggesting: (12*18*100) / 3 = 7200 PGs, that rounded to an exponent of 2 means 8192 ? _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |