[Linux-cluster] cannot add 3rd node to running cluster

Terry td3201 at gmail.com
Thu Dec 31 16:13:49 UTC 2009

On Wed, Dec 30, 2009 at 10:13 AM, Terry <td3201 at gmail.com> wrote:
> On Tue, Dec 29, 2009 at 5:20 PM, Jason W. <jwellband at gmail.com> wrote:
>> On Tue, Dec 29, 2009 at 2:30 PM, Terry <td3201 at gmail.com> wrote:
>>> Hello,
>>> I have a working 2 node cluster that I am trying to add a third node
>>> to.   I am trying to use Red Hat's conga (luci) to add the node in but
>> If you have two node cluster with two_node=1 in cluster.conf - such as
>> two nodes with no quorum device to break a tie - you'll need to bring
>> the cluster down, change two_node to 0 on both nodes (and rev the
>> cluster version at the top of cluster.conf), bring the cluster up and
>> then add the third node.
>> For troubleshooting any cluster issue, take a look at syslog
>> (/var/log/messages by default). It can help to watch it on a
>> centralized syslog server that all of your nodes forward logs to.
>> --
>> Jason
>> The path to enlightenment is /usr/bin/enlightenment.
> Thank you for the response.  /var/log/messages doesn't have any
> errors.  It says cman started then says can't connect to cluster
> infrastructure after a few seconds.  My cluster does not have the
> two_node=1 config now.  Conga took that out for me.  That bit me last
> night because I needed to put that back in.

CMAN still will not start and gives no debug information.  Anyone know
why cman_tool -d join would not print any output at all?
Troubleshooting this is kind of a nightmare.  I verified that two_node
is not in play.

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