[Ocfs2-users] removing old nodes manually
Jim Okken
jim at jokken.com
Thu Nov 30 12:43:24 PST 2017
hi list,
I am using ocfs2 on Ubuntu 16.04.3 Linux servers. The ocfs2 packages
provided by apt-get includes the "o2cb_ctl" and "ocfs2console" utilities.
my Ubuntu servers do not have a GUI so I can't use the graphical "ocfs2console"
utility.
I can use the "o2cb_ctl" -C option to add nodes to the cluster config.
-C Create an object in the OCFS2 Cluster Configuration.
But it seems the "o2cb_ctl" -D option, to remove a node, is not implemented
in this version of the tool
-D Delete an object from the existing OCFS2 Cluster
Configuration.
root at node-9:~# o2cb_ctl -D -n node-6 -u
o2cb_ctl: Not yet supported
But I need to remove a number of old nodes that no longer exist. I was just
leaving the old nodes in there and adding in new nodes, but now I need to
add a node which has the same ip address as one of the old nodes.... so, I
need to delete that old node.
it seems to me there would be a manual way to do this. change the
cluster.conf file and apply the changes on the fly. I need to keep the
ocfs2 filesystem up while removing old nodes on a number of servers.
can anyone tell me the manual steps to do this on each of my servers?
The rest of my environment needs to run on Ubuntu 16, otherwise I would try
ocfs2 on a different OS.
I see there is a newer tool, named O2CB (NewO2CBTool), which may help me
out, but is there source code for it? and will it compile on Ubuntu 16.04.3?
thanks!
-- Jim
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