On Tuesday, February 5, 2013 at 5:49 PM, Sage Weil wrote: > On Tue, 5 Feb 2013, Mandell Degerness wrote: > > I would like very much to specify pg_num and pgp_num for the default > > pools, but they are defaulting to 64 (no OSDs are defined in the > > config file). I have tried using the options indicated by Artem, but > > they didn't seem to have any effect on the data and rbd pools which > > are created by default. Is there something I am missing? > > > > > Ah, I see. Specifying this is awkward. In [mon] or [global], > > osd pg bits = N > osd pgp bits = N > > where N is the the number of bits to shift 1 to the left. So for 1024 > PGs, you'd do 10. (What it's actually doing is MIN(1, num_osds) << N. > The default N is 6, so you're probaby seeing 64 PGs per pool by default.)
I see the confusion though — the osd_pool_default_pg_num option is only used for pools which you create through the monitor after the system is already running. On Tuesday, February 5, 2013 at 7:22 PM, Chen, Xiaoxi wrote: > But can we change the pg_num of a pool when the pool contains data? If yes, > how to do this? > We advise against that right now; the relevant code isn't well-enough tested. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
