On Fri, 2007-08-24 at 15:12 +0200, Kadlecsik Jozsi wrote:
> On Fri, 24 Aug 2007, Kadlecsik Jozsi wrote:
>
> > It took 13 minutes(!) for 'lsxerv0' to notice 'lxserv1'.
>
> 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.
Hi Jozsef,
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). When I press "apply" I see the reconfiguration happening,
but when I look at my cluster.conf, there's no multicast address in
there:
<?xml version="1.0"?>
<cluster alias="clust0" config_version="10" name="clust0">
<fence_daemon clean_start="0" post_fail_delay="0"
post_join_delay="30"/>
<clusternodes>
<clusternode name="host0.library.usyd.edu.au" nodeid="1"
votes="1">
<fence>
<method name="1">
<device name="host0"/>
</method>
</fence>
</clusternode>
<clusternode name="host1.library.usyd.edu.au" nodeid="2"
votes="1">
<fence>
<method name="1">
<device name="host1"/>
</method>
</fence>
</clusternode>
</clusternodes>
<cman expected_votes="1" two_node="1"/>
<fencedevices>
<fencedevice action="reboot" agent="fence_ilo" force="1"
hostname="192.168.0.3" login="clust0" name="host0" passwd="ilopasswd"/>
<fencedevice action="reboot" agent="fence_ilo" force="1"
hostname="192.168.0.4" login="clust0" name="host1" passwd="ilopasswd"/>
</fencedevices>
<rm>
<failoverdomains/>
<resources/>
</rm>
<fence_xvmd/>
</cluster>
Also when I try
netstat -gn
itill seems to show the multicast address that openais chose by itself:
[root@host0 ~]# netstat -gn
IPv6/IPv4 Group Memberships
Interface RefCnt Group
--------------- ------ ---------------------
lo 1 224.0.0.1
eth0 1 224.0.0.251
eth0 1 225.0.0.12
eth0 1 239.192.205.2
eth0 1 224.0.0.1
[root@host0 ~]#
Could I please have a look at your cluster.conf?
Regards,
Nik Lam
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