Re: Unable to start cman on FC12 VM's Cluster3

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On 10-03-23 02:49 AM, Fabio M. Di Nitto wrote:
On 3/7/2010 3:26 PM, brem belguebli wrote:
Hi,

I'm fighting with cman on 2 FC12 VM's (KVM).

I'm unable to start cman.

Below my cluster.conf
------------------------------------------------------------
<?xml version="1.0"?>
<cluster name="fccl1" config_version="3">

   <clusternodes>
	<clusternode name="node1.localdomain" votes="1" nodeid="1"/>
	<clusternode name="node2.localdomain" votes="1" nodeid="2"/>
   </clusternodes>
	<cman expected_votes="2" two_node="1"/>
   <fencedevices>
   </fencedevices>

   <rm>
     <failoverdomains/>
     <resources/>
   </rm>
</cluster>
--------------------------------------------------------------

when running service cman start, it times out and complains that it
cannot join the cluster (timeout waiting for cluster), despite that
corosync is started.
Disabled selinux, nodes are referenced in each node's /etc/hosts.

Any idea ?

Try the following steps:

1) disable iptables
2) add<logging debug="on"/>  before<clusternodes>
3) try to start the cluster with: "/etc/init.d/cman start join"

if it still fails, then please collect all the logs from /var/log/cluster.

Point 3 is to break the init script at cman startup time. There is no
point to load everything else if cman doesn´t work.

If the cluster starts, then verify with "cman_tool status" and
"cman_tool nodes" that the nodes can see each other and then you can
simply execute again "service cman start" to start all the other cluster
components.

Fabio

It could also be because there are no fence devices. A fence device is a requirement, and without it, the cluster will block.

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