Fuel for OpenStack

How do I change configuration parameters in Ceph Cluster

Asked by EP KOMARLA

Hi,

I am using Fuelmaster 7.0 to deploy OpenStack and a Ceph Cluster. I need to change some configuration parameters (# of PGs per OSD). I know I need to change these values in /etc/ceph/ceph.conf file. How do I apply these new values to my ceph cluster and restart the service? I tried the commands, "stop ceph-all" and "start ceph-all", it doesn't work. Is there a step for this?

Thanks,

- epk

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Fabrizio Soppelsa (fsoppelsa) said : 		#1

Epk greetings,

you may want to change those configuration on a running Ceph cluster with the inject commands described here http://docs.ceph.com/docs/master/rados/configuration/ceph-conf/ in section Runtime Changes.

Best regards,
Fabrizio
Mirantis

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Denis Klepikov (dklepikov) said : 		#2

Hello.

> I tried the commands, "stop ceph-all" and "start ceph-all", it doesn't work. Is there a step for this?

Please pay attention, that you need to use this commands to start/stop/restart ceph in cluster, deployed via Fuel 7.0:

# initctl stop ceph-all
# initctl start ceph-all
# initctl restart ceph-all

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