I had the same issue and I solved it,
Just increase quorum check interval. 2 seconds is to less to inform
cman about quorum status.
I had to increase it to 7 seconds but remember it also influence cman
timeout which must be verified.
Best regards,
Tomek
On Feb 17, 2009, at 9:12 PM, Hunt, Gary wrote:
Having an issue with my 2 node cluster. Think it is related to the
quorum disk.
2 node RHEL 5.3 cluster with quorum disk. Virtual servers running
on each node.
Whenever node1 takes over the master role in qdisk it looses quorum
and restarts all the virtual servers. It does regain quorum a few
seconds later. If node1 is already the master and I fail node2;
things work as expected. Node2 doesn’t seem to have a problem
taking over master role.
Whenever node1 needs to take over master role the cluster looses
quorum. Here is my cluster.conf. Any suggestions on what may be
causing this?
<?xml version="1.0"?>
<cluster alias="xencluster" config_version="13" name="xencluster">
<fence_daemon clean_start="0" post_fail_delay="0"
post_join_delay="3"/>
<clusternodes>
<clusternode name="ricci2b.gallup.com" nodeid="2"
votes="1">
<fence>
<method name="1">
<device name="ricci2b"/>
</method>
</fence>
</clusternode>
<clusternode name="ricci1b.gallup.com" nodeid="1"
votes="1">
<fence>
<method name="1">
<device name="ricci1b"/>
</method>
</fence>
</clusternode>
</clusternodes>
<cman expected_votes="3" two_node="0"/>
<fencedevices>
<fencedevice agent="fence_ipmilan"
ipaddr="172.30.3.110" login="xxxx" name="ricci1b" passwd="xxxxxx"/>
<fencedevice agent="fence_ipmilan"
ipaddr="172.30.3.140" login="xxxx" name="ricci2b" passwd="xxxxxx"/>
</fencedevices>
<rm>
<failoverdomains/>
<resources/>
<vm autostart="1" exclusive="0" name="rhel_full"
path="/xenconfigs" recovery="restart"/>
<vm autostart="1" exclusive="0" name="rhel_para"
path="/xenconfigs" recovery="restart"/>
</rm>
<quorumd interval="2" label="quorum_disk_from_ricci1"
min_score="1" tko="3" votes="1"/>
<totem consensus="4800" join="60" token="12000"
token_retransmits_before_loss_const="20"/>
</cluster>
Thanks
Gary
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