m] on behalf of Matteo
Dacrema [mdacr...@enter.eu]
Sent: Monday, September 19, 2016 2:51 AM
To: Will.Boege; ceph-users@lists.ceph.com
Subject: Re: [ceph-users] [EXTERNAL] Re: Increase PG number
Hi,
I’ve 3 different cluster.
The first I’ve been able to upgrade from 1024 to 2048 pgs with 10 min
Hi,
I’ve 3 different cluster.
The first I’ve been able to upgrade from 1024 to 2048 pgs with 10 minutes of
"io freeze”.
The second I’ve been able to upgrade from 368 to 512 in a sec without any
performance issue, but from 512 to 1024 it take over 20 minutes to create pgs.
The third I’ve to upgra
How many PGs do you have - and how many are you increasing it to?
Increasing PG counts can be disruptive if you are increasing by a large
proportion of the initial count because all the PG peering involved. If you
are doubling the amount of PGs it might be good to do it in stages to minimize
p
