Forgot the + for the regex.

ceph -s | grep -Eo '[0-9]+ pgs'

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From: David Turner
Sent: Thursday, September 22, 2016 9:53 AM
To: Andrus, Brian Contractor; ceph-users@lists.ceph.com
Subject: RE: too many PGs per OSD when pg_num = 256??

How many pools do you have?  How many pgs does your total cluster have, not 
just your rbd pool?

ceph osd lspools
ceph -s | grep -Eo '[0-9] pgs'

My guess is that you have other pools with pgs and the cumulative total of pgs 
per osd is too many.
________________________________
From: ceph-users [ceph-users-boun...@lists.ceph.com] on behalf of Andrus, Brian 
Contractor [bdand...@nps.edu]
Sent: Thursday, September 22, 2016 9:33 AM
To: ceph-users@lists.ceph.com
Subject: [ceph-users] too many PGs per OSD when pg_num = 256??

All,

I am getting a warning:

     health HEALTH_WARN
            too many PGs per OSD (377 > max 300)
            pool cephfs_data has many more objects per pg than average (too few 
pgs?)

yet, when I check the settings:
# ceph osd pool get rbd pg_num
pg_num: 256
# ceph osd pool get rbd pgp_num
pgp_num: 256

How does something like this happen?
I did create a radosgw several weeks ago and have put a single file in it for 
testing, but that is it. It only started giving the warning a couple days ago.

Brian Andrus
ITACS/Research Computing
Naval Postgraduate School
Monterey, California
voice: 831-656-6238

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