[Linux-cluster] Re: Two-node cluster disconnecting

[Christopher Barry]

-----Original Message-----
From: linux-cluster-bounces at redhat.com on behalf of Mikko Partio
Sent: Mon 10/22/2007 9:41 AM
To: linux-cluster at redhat.com
Subject: [Linux-cluster] Re: Two-node cluster disconnecting
 
On 10/16/07, Mikko Partio <mpartio at gmail.com> wrote:
>
>
>
> On 10/11/07, Mikko Partio <mpartio at gmail.com> wrote:
> >
> > Hello list
> >
> > I have a problem with a two-node cluster going split-brain. When I first
> > boot the other node, it correctly starts all the services and informs that
> > cluster is quorate. Then when I boot the other node, on the boot phase
> > when it starts the cluster software it does not find the node already
> > running and starts the same services already running on node 1! When the
> > boot is complete I can see that the nodes have found each other for a small
> > period of time but then immediately disconnect from each other. The
> > cluster is created with Conga with shared disk support though no shared
> > disks are created yet. This is on CentOS 5.
> >
> > cluster.conf:
>
>
> Anybody got a clue? Also, should I be configuring ais.conf also? There is
> no mention about it in the docs but if cman is using openais, I'd guess it
> should be configured with the correct addresses right?
>
> Regards
>
> M
>

To finish up this monologue; one should not configure openais
(/etc/ais/openais.conf) nor start it at boot time. Also make sure your
multicast packets are coming through (pinging 224.0.0.1 is not enough).

Regards

M




Make sure you have correct /etc/hosts on both nodes, with all interfaces/names on your nodes defined.


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