I had to go through the same experience of changing the public network
address and it's not easy. Ceph seems to keep a record of what ip
address is associated to what OSD and a port number for the process. I
was never able to find out where this record is kept or how to change it
manually. Here's what I did, from memory :
1. Remove the network address I didn't want to use anymore from the
ceph.conf and put the one I wanted to use instead. Don't worry,
modifying the ceph.conf will not affect a currently running cluster
unless you issue a command to it, like adding an OSD.
2. Remove each OSD one by one and then reinitialize them right after.
You will lose the data that's on the OSD, but if your cluster is
replicated properly and do this operation one OSD at a time, you should
not lose the copies of that data.
3. Check the OSD status to make sure they use the proper IP. The command
"ceph osd dump" will tell you if your OSDs are detected on the proper IP.
4. Remove and reinstall each monitor one by one.
If anybody else has another solution I'd be curious to hear it, but this
is how I managed to do it, by basically reinstalling each component one
by one.
On 3/3/2015 12:26 PM, Garg, Pankaj wrote:
Hi,
I have ceph cluster that is contained within a rack (1 Monitor and 5
OSD nodes). I kept the same public and private address for configuration.
I do have 2 NICS and 2 valid IP addresses (one internal only and one
external) for each machine.
Is it possible now, to change the Public Network address, after the
cluster is up and running?
I had used Ceph-deploy for the cluster. If I change the address of the
public network in Ceph.conf, do I need to propagate to all the
machines in the cluster or just the Monitor Node is enough?
Thanks
Pankaj
_______________________________________________
ceph-users mailing list
ceph-users@lists.ceph.com
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
--
======================
Jean-Philippe Méthot
Administrateur système / System administrator
GloboTech Communications
Phone: 1-514-907-0050
Toll Free: 1-(888)-GTCOMM1
Fax: 1-(514)-907-0750
jpmet...@gtcomm.net
http://www.gtcomm.net
_______________________________________________
ceph-users mailing list
ceph-users@lists.ceph.com
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
