[Linux-cluster] RHSCv4 2-node cluster hangs while startingfenced

Mark Hlawatschek hlawatschek at atix.de
Wed Nov 2 08:49:25 UTC 2005


Hi Hirantha,

The fence device for nodeN has to be the ILO device that is used to
fence nodeN - i.e. the ILO device inside nodeN.

For the cluster.conf this means:
(...)
<clusternode name="nodeN" votes="1">
	<fence>
 		<method name="1">
 			<device name="HPiLO_nodeN"/>
 		</method>
 	</fence>
</clusternode>
(...)
<fencedevices>
	<fencedevice agent="fence_ilo" hostname="hostname of ILO device inside nodeN"
        login="ilouser" name="HPiLO_nodeN" passwd="ilopassword"/>
</fencedevices>

and so on...

I hope that helps,

Mark


On Wed, 2005-11-02 at 10:20 +0600, Hirantha Wijayawardena wrote:
> Thanks all,
> 
> But I didn't get - the configuration is backwards!!
> 
> I'm very new to RHCS but not for Linux Cluster and please help on this.
> 
> As you know I have 2 fence devices each node has its own.
> 
> Node1 has HPiLO_node1
> Node2 has HPiLO_node2
> 
> So I configured as follows
> 
> <clusternode name="node1" votes="1">
>  			<fence>
>  				<method name="1">
>  					<device name="HPiLO_node2"/>
>  				</method>
>  			</fence>
>  		</clusternode>
>  
>  		<clusternode name="node2" votes="1">
>  			<fence>
>  				<method name="1">
>  					<device name="HPiLO_node1"/>
>  				</method>
>  			</fence>
>  		</clusternode>
> 
>  	<fencedevices>
>  		<fencedevice agent="fence_ilo" hostname="10.10.10.1"
>                 login="Administrator" name="HPiLO_node1" passwd="RWE232WE"/>
>  		<fencedevice agent="fence_ilo" hostname="10.10.10.2"
>                  login="Administrator" name="HPiLO_node2"
> passwd="QWD31D4D"/>
>  	</fencedevices>
> 
> Is this correct?
> 
> And I will do what Dave suggests and let you guys know. Before that please
> advice me is my configuration on fence devices are correct.
> 
> Thanks in advance
> 
> - Hirantha
> 
> 
> -----Original Message-----
> From: Lon Hohberger [mailto:lhh at redhat.com] 
> Sent: Wednesday, November 02, 2005 2:41 AM
> To: linux clustering
> Cc: Hirantha Wijayawardena
> Subject: Re: [Linux-cluster] RHSCv4 2-node cluster hangs while
> startingfenced
> 
> On Tue, 2005-11-01 at 09:37 -0600, David Teigland wrote:
> 
> > > 		<clusternode name="node1" votes="1">
> > > 			<fence>
> > > 				<method name="1">
> > > 					<device name="HPiLO_node2"/>
> > > 				</method>
> > > 			</fence>
> > > 		</clusternode>
> > 
> > > 		<clusternode name="node2" votes="1">
> > > 			<fence>
> > > 				<method name="1">
> > > 					<device name="HPiLO_node1"/>
> > > 				</method>
> > > 			</fence>
> > > 		</clusternode>
> > 
> > > 	<fencedevices>
> > > 		<fencedevice agent="fence_ilo" hostname="10.10.10.1"
> > >                login="Administrator" name="HPiLO_node1"
> passwd="RWE232WE"/>
> > > 		<fencedevice agent="fence_ilo" hostname="10.10.10.2"
> > >                 login="Administrator" name="HPiLO_node2"
> passwd="QWD31D4D"/>
> > > 	</fencedevices>
> > 
> > I've never configured fence_ilo before, but you may want to check this.
> > You specify in node A's <fence> section how others will fence node A
> > (not how node A will fence another node).  So, shouldn't node1 list
> > HPiLO_node1 as its fence device and node2 list HPiLO_node2?
> 
> Yes, this is correct - the configuration looks backwards.
> 
> -- Lon
> 
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-- 
Mark Hlawatschek <hlawatschek at atix.de>




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