On 08 Jan 2014, at 04:47, Wido den Hollander <w...@42on.com> wrote: >> I expect that basically only one pool (.rgw?) will hold the true data, >> all other stuff (like '.users' and so on) will not be data intensive, as >> it might only store metadata. >> > Indeed. So you can have less PGs for these pools. Only the busy pools need > more PGs to get a good data distribution.
ok, that was what I expected. >> My question is: When a pool has a lot of PG's but basically almost no >> data in it, do the OSD's still have a lot of work to do, and does their >> memory requirement still grow? Or does this only hold true for 'busy' >> pools? >> > > Yes, memory consumption is by the amount of PGs, not the objects in it. > Recovery ofcourse takes less time since no data has to be copied, but the > more PGs you have, the more memory and CPU it takes. Allright, that meets to my expectations. Thanks for your helpful answer! wogri _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
