[Linux-cluster] Re: Nodes show up extremely slowly (or not at all)

[Kadlecsik Jozsi]

Hi,

On Fri, 24 Aug 2007, Nikolas Lam wrote:

> > It turned out to be a switch-related multicast problem: openais used the 
> > default(?) 239.192.6.53 address, while the switch strangely enough passes 
> > the 224.0.0.x addresses only. So by setting the multicast address in
> > cluster.conf explicitly to 224.0.0.3 cured the problem.
> 
> I think I might be having similar problems. However I seem to be unable
> to specify a multicast address manually using conga / luci (the web
> based tool). 
[..]
> Could I please have a look at your cluster.conf?

Sure, I attached ours. Please note, you must specify the multicast address 
for cman and every clusternode too and the address must be the same 
everywhere. (See 
http://sources.redhat.com/cluster/doc/cluster_schema_rhel5.html.)

Best regards,
Jozsef
--
E-mail : kadlec at sunserv.kfki.hu, kadlec at blackhole.kfki.hu
PGP key: http://www.kfki.hu/~kadlec/pgp_public_key.txt
Address: KFKI Research Institute for Particle and Nuclear Physics
         H-1525 Budapest 114, POB. 49, Hungary
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<?xml version="1.0"?>
<cluster name="kfki" config_version="6">

<cman>
	<multicast addr="224.0.0.3"/>
</cman>

<clusternodes>
<clusternode name="lxserv0-gfs" nodeid="1">
	<fence>
		<method name="fabric">
			<device name="aoe" hostname="lxserv0" mac="00:07:E9:11:70:A3"/>
		</method>
	</fence>
	<multicast addr="224.0.0.3" interface="eth1"/>  
</clusternode>
<clusternode name="lxserv1-gfs" nodeid="2">
	<fence>
		<method name="fabric">
			<device name="aoe" hostname="lxserv1" mac="-00:16:76:83:1E:13"/>
		</method>
	</fence>
	<multicast addr="224.0.0.3" interface="eth1"/>  
</clusternode>
<clusternode name="web0-gfs" nodeid="3">
	<fence>
		<method name="fabric">
			<device name="aoe" hostname="web0" mac="00:07:E9:11:71:C1"/>
		</method>
	</fence>
	<multicast addr="224.0.0.3" interface="eth1"/>  
</clusternode>
<clusternode name="web1-gfs" nodeid="4">
	<fence>
		<method name="fabric">
			<device name="aoe" hostname="web1" mac="00:16:76:83:0B:EB"/>
		</method>
	</fence>
	<multicast addr="224.0.0.3" interface="eth1"/>  
</clusternode>
<clusternode name="saturn-gfs" nodeid="5">
	<fence>
		<method name="fabric">
			<device name="aoe" hostname="saturn" mac="00:1B:21:00:31:17"/>
		</method>
	</fence>
	<multicast addr="224.0.0.3" interface="eth1"/>  
</clusternode>
</clusternodes>


<fencedevices>
	<fencedevice name="aoe" agent="fence_aoe"/>
</fencedevices>

</cluster>