[Linux-cluster] DRAC5 fencing problem with Redhat 5.3 cluster
Dan Hayes
dhayes501 at gmail.com
Wed Apr 22 17:00:30 UTC 2009
I have 8 Dell servers all loaded with Redhat 5.3. The machines have an
external and internal IP address. The cluster is configured on the internal
ip address.
The cluster appears to be working fine except for fencing. I try to
manually fence a node, but get a connection error
[root at w002 ~]# fence_node lb001.domain.com
agent "fence_drac5" reports: Unable to connect/login to fencing device
I was able to get the fence_drac5 command to work directly by adding the
"-x" option for using SSH. It says the connection times out, but it does
shut down the other machine
[root at w002 ~]# fence_drac5 -a 165.289.178.221 -l root -p pass -x
lb001.domain.com
Connection timed out
Why does the connection time out? And how do I add the "-x" option to the
cluster.conf file so that the fencing agent can connect?
Here are my /etc/hosts and /etc/cluster/cluster.conf files.
##############################################/etc/hosts
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
#eth0 -- p=public interface
165.289.178.111 w001p w001p.domain.com
165.289.178.112 w002p w002p.domain.com
165.289.178.113 w003p w003p.domain.com
165.289.178.121 lb001p lb001p.domain.com
165.289.178.122 lb002p lb002p.domain.com
165.289.178.124 db001p db001p.domain.com
165.289.178.125 db002p db002p.domain.com
165.289.178.126 dev001p dev001p.domain.com
165.289.178.211 w001-drac
165.289.178.212 w002-drac
165.289.178.213 w003-drac
165.289.178.221 lb001-drac
165.289.178.222 lb002-drac
165.289.178.224 db001-drac
165.289.178.225 db002-drac
165.289.178.226 dev001-drac
#eth1 -- this is the cluster
192.168.178.111 w001 w001.domain.com
192.168.178.112 w002 w002.domain.com
192.168.178.113 w003 w003.domain.com
192.168.178.121 lb001 lb001.domain.com
192.168.178.122 lb002 lb002.domain.com
192.168.178.124 db001 db001.domain.com
192.168.178.125 db002 db002.domain.com
192.168.178.126 dev001 dev001.domain.com
#########################################################
##################################/etc/cluster/cluster.conf
<?xml version="1.0"?>
<cluster alias="cluster1" config_version="1" name="cluster1">
<fence_daemon post_fail_delay="0" post_join_delay="3"/>
<clusternodes>
<clusternode name="dev001.domain.com" nodeid="1" votes="1">
<fence><method name="1"> <device name="dev001-drac"/>
</method></fence>
</clusternode>
<clusternode name="w001.domain.com" nodeid="2" votes="1">
<fence><method name="1"> <device name="w001-drac"/>
</method></fence>
</clusternode>
<clusternode name="w002.domain.com" nodeid="3" votes="1">
<fence><method name="1"> <device name="w002-drac"/>
</method></fence>
</clusternode>
<clusternode name="w003.domain.com" nodeid="4" votes="1">
<fence><method name="1"> <device name="w003-drac"/>
</method></fence>
</clusternode>
<clusternode name="lb001.domain.com" nodeid="5" votes="1">
<fence><method name="1"> <device name="lb001-drac"/>
</method></fence>
</clusternode>
<clusternode name="lb002.domain.com" nodeid="6" votes="1">
<fence><method name="1"> <device name="lb002-drac"/>
</method></fence>
</clusternode>
<clusternode name="db001.domain.com" nodeid="7" votes="1">
<fence><method name="1"> <device name="db001-drac"/>
</method></fence>
</clusternode>
<clusternode name="db002.domain.com" nodeid="8" votes="1">
<fence><method name="1"> <device name="db002-drac"/>
</method></fence>
</clusternode>
</clusternodes>
<cman/>
<fencedevices>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.211"
login="root" name="w001-drac" passwd="pass"/>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.212"
login="root" name="w002-drac" passwd="pass"/>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.213"
login="root" name="w003-drac" passwd="pass/>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.221"
login="root" name="lb001-drac" passwd="pass"/>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.222"
login="root" name="lb002-drac" passwd="pass"/>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.224"
login="root" name="db001-drac" passwd="pass/>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.225"
login="root" name="db002-drac" passwd="pass"/>
<fencedevice agent="fence_drac5" ipaddr="165.289.178.226"
login="root" name="dev001-drac" passwd="pass"/>
</fencedevices>
<rm/>
</cluster>
########################################################
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