Talk:Fencing: Difference between revisions

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(Complements for editing corosync.conf instead of cluster.conf, sort of draft for a separate page)
 
(Moving content to an autonomous page)
 
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The process I use to edit corosync.conf (needs to be reviewed checked, tested and amended by a more knowledgeable person!!!)


== 1 - Edit /etc/corosync/corosync.conf ==
* of course make a backup first
* never forget increasing version number
== 2 - Check the content of /etc/pve/ ==
* if /etc/pve/corosync.conf is writeable, simply copy /etc/corosync/corosync.conf to /etc/pve/corosync.conf, then restart the service corosync (note to editors... in fact, I have never done precisely that, since I was fighting to setup my cluster and I am not ready to take the risk to break it!!)
* if present but read-only... then your cluster is not OK, presumably because of a problem with corosync (and your other configuration details).
:stop corosync and switch to local-only mode:
::'''service corosync stop
::'''pmxcfs -l
:You should get the message that it works "even though corosync.conf is already present"
:If you get an error message "unable to get the lock"... check the presence of /var/lib/pve-cluster/.pmxcfs.lockfile and remove it, then re-issue '''pmxcfs -l'''
:You are now ready to update corosync.conf and re-launch the cluster
::'''cp /etc/corosync/corosync.conf /etc/pve/corosync.conf
::'''service corosync start
::'''service pve-cluster start
* if /etc/pve/ is empty ''(note to editors : not sure I remember correctly...)''
::'''pmxcfs -l
:You should get the message that it works "even though corosync.conf is already present"
:If you get an error message "unable to get the lock"... check the presence of /var/lib/pve-cluster/.pmxcfs.lockfile and remove it, then re-issue '''pmxcfs -l'''
:You are now ready to update corosync.conf and re-launch the cluster
::'''cp /etc/corosync/corosync.conf /etc/pve/corosync.conf
::'''service corosync start
::'''service pve-cluster start
Remark: not sure if not needed to create /etc/pve/priv and /etc/pve/nodes if they are absent

Latest revision as of 18:05, 12 April 2016

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