>-----Original Message-----
>From: Tyler Brekke [mailto:tyler.bre...@inktank.com]
>Sent: Thursday, October 24, 2013 4:36 AM
>To: Gruher, Joseph R
>Cc: ceph-users@lists.ceph.com
>Subject: Re: [ceph-users] Default PGs
>
>You have to do this before creating your first monitor as the default pools are
>created by the monitor.
>
>Now any pools you create should have the correct number of placement
>groups though.
>
>You can also increase your pg and pgp num with,
>
>ceph osd pool set <poolname> pg_num <xxx> ceph osd pool set <poolname>
>pgp_num <xxx>
What I did was "ceph-deploy new <hosts>" to create the default ceph.conf, then
I added these lines in [global]:
osd_pool_default_pgp_num = 800
osd_pool_default_pg_num = 800
Then I created the monitors and OSDs via ceph-deploy. I still had 64 PGs in
all the default pools. Is that expected? Do I need to set up ceph.conf before
running "new"? If I do it seems to overwrite my ceph.conf with the default
ceph.conf.
For pools created later, the pool create command requires you specify the
number of PGs, so I can't really judge if the default PG value is working.
Trying to run "ceph osd pool create {pool-name} {pg-num}" without supplying a
value for pg-num fails.
I was able to adjust the PGs in the default pools after they were created -
that works as described.
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