[ClusterLabs] Cluster.conf

Streeter, Michelle N michelle.n.streeter at boeing.com
Tue Aug 25 09:14:57 EDT 2015

I am using pcs but it does nothing with the cluster.conf file.   Also, I am currently required to use rhel6.6.   

I have not been able to find any documentation on what is required in the cluster.conf file under the newer versions of pacemaker and I have not been able to reduce my current version down enough to satisfy pacemaker and so would you please provide an example of what is required in the cluster.conf file?

"I don't think CMAN component can operate without that file (location
possibly overridden with $COROSYNC_CLUSTER_CONFIG_FILE environment
variable).  What distro, or at least commands to bring the cluster up
do you use?"

We are only allowed to download from Red hat and I have both corosync and pacemaker services set to on so they start at boot up.   It does not matter if I stop all three services cman, corosync, and pacemaker and then start corosync first and then pacemaker, if I have a cluster.conf file in place, it fails to start.

This is my current cluster.conf file which just failed.
<?xml version="1.0"?>
<cluster name="CNAS">
                <clusternode name="nas01">
                <clusternode name="nas02">

Michelle Streeter 
ASC2 MCS - SDE/ACL/SDL/EDL OKC Software Engineer
The Boeing Company

Date: Mon, 24 Aug 2015 17:52:01 +0000
From: "Streeter, Michelle N" <michelle.n.streeter at boeing.com>
To: "users at clusterlabs.org" <users at clusterlabs.org>
Subject: [ClusterLabs] Cluster.conf
	<9A18847A77A9A14DA7E0FD240EFCAFC25043E6 at XCH-PHX-501.sw.nos.boeing.com>
Content-Type: text/plain; charset="us-ascii"

If I have a cluster.conf file in /etc/cluster, my cluster will not start.   Pacemaker 1.1.11, Corosync 1.4.7, cman 3.0.12,  But if I do not have a cluster.conf file then my cluster does start with my current configuration.   However, when I try to stop the cluster, it wont stop unless I have my cluster.conf file in place.   How can I dump my cib to my cluster.conf file so my cluster will start with the conf file in place?

Michelle Streeter
ASC2 MCS - SDE/ACL/SDL/EDL OKC Software Engineer
The Boeing Company

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Message: 3
Date: Mon, 24 Aug 2015 14:00:48 -0400
From: Digimer <lists at alteeve.ca>
To: Cluster Labs - All topics related to open-source clustering
	welcomed	<users at clusterlabs.org>
Subject: Re: [ClusterLabs] Cluster.conf
Message-ID: <55DB5BD0.4010205 at alteeve.ca>
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The cluster.conf is needed by cman, and in RHEL 6, pacemaker needs to
use cman as the quorum provider. So you need a skeleton cluster.conf and
it is different from cib.xml.

If you use pcs/pcsd to setup pacemaker on RHEL 6.7, it should configure
everything for you, so you should be able to go straight to setting up
pacemaker and not worry about cman/corosync directly.


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