[Linux-cluster] fence " node1" failed if etho down

ESGLinux esggrupos at gmail.com
Mon Feb 16 08:29:48 UTC 2009

Hello All,

I have a cluster with two nodes running one service (mysql). The two nodes
uses a ISCSI disk with gfs on it.
I haven´t configured fencing at all.

I have tested diferent situtations of fail and these are my results:

If I halt node1 the service relocates to node2 - OK
if I kill the process in node1 the services relocate to node2 - OK


if I unplug the wire of the ether device or make ifdown eth0 on node1 all
the cluster fails. The service doesn´t relocate.
In node2 I get the messages:

Feb 15 13:29:34 localhost fenced[3405]: fencing node ""
Feb 15 13:29:34 localhost fenced[3405]: fence "" failed
Feb 15 13:29:39 localhost fenced[3405]: fencing node ""
Feb 15 13:29:39 localhost fenced[3405]: fence "" failed

again and again. The node2 never runs the service and I try to reboot the
node1 the computer hangs waiting for stopping the services.

In this situation all I can do is to switch off the power of node1 and
reboot the node2. This situation is not acceptable at all.

I think the problem is just with fencing but I dont know how to apply to
this situation ( I have RTFM from redhat site  but I have seen how to apply
it. :-( )

this is my cluster.conf file

<cluster alias="MICLUSTER" config_version="62" name="MICLUSTER">
        <fence_daemon clean_start="0" post_fail_delay="0"
                <clusternode name="node1" nodeid="1" votes="1">
                <clusternode name="node2" nodeid="2" votes="1">
        <cman expected_votes="1" two_node="1"/>
                        <failoverdomain name="DOMINIOFAIL" nofailback="0"
ordered="0" restricted="1">
                                <failoverdomainnode name="node1"
                                <failoverdomainnode name="node2"
                <service domain="DOMINIOFAIL" exclusive="0" name="BBDD"
                        <mysql config_file="/etc/my.cnf" listen_address=""
mysql_options="" name="mydb" shutdown_wait="3"/>
                        <ip address="" monitor_link="1"/>

Any idea? references?

Thanks in advance


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