Hi,
We have two RHEL5.1 boxes installed sharing a
single iscsi emc2 SAN, whitout fence devices. System is configured
as a high-availability system of xen guest.
One of the most repeating problems are fence_tool related.
# service cman start
Starting cluster:
Loading modules... done
Mounting configfs... done
Starting ccsd... done
Starting cman... done
Starting daemons... done
Starting fencing... fence_tool: can't communicate with fenced -1
# fenced -D
1204556546 cman_init error 0 111
# clustat
CMAN is not running.
# cman_tool join
# clustat
msg_open: Connection refused
Member Status: Quorate
Member Name ID Status
------ ---- ---- ------
yoda1 1 Online, Local
yoda2 2 Offline
Sometimes this problem gets solved if the two machines are rebooted at
the same time. But in the current HA configuration, I cannot guarantee
two systems will be rebooted at the same time for every problem we
face. This is my config file:
###################################cluster.conf####################################
<?xml version="1.0"?>
<cluster alias="yoda-cl" config_version="2" name="yoda-cl">
<fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="3"/>
<clusternodes>
<clusternode name="yoda2" nodeid="1" votes="1">
<fence/>
</clusternode>
<clusternode name="yoda1" nodeid="2" votes="1">
<fence/>
</clusternode>
</clusternodes>
<cman expected_votes="1" two_node="1"/>
<rm>
<failoverdomains/>
<resources/>
</rm>
<fencedevices/>
</cluster>
###################################cluster.conf####################################
Regards.
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