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Re: [Linux-cluster] all nodes halt when one lose connection



Hello,

these are the logs I get:

In node1:

May 21 11:33:44 NODE1 fenced[3840]: NODE2 not a cluster member after 5 sec post_fail_delay
May 21 11:33:44 NODE1 fenced[3840]: fencing node "NODE2"
May 21 11:33:44 NODE1 shutdown[5448]: shutting down for system halt

in node2:

May 21 11:33:45 NODE2 fenced[3843]: NODE1 not a cluster member after 5 sec post_fail_delay
May 21 11:33:45 NODE2 fenced[3843]: fencing node "NODE1"
May 21 11:33:45 NODE2 shutdown[5923]: shutting down for system halt


what I don´t know is way they lose the connection with the cluster, they are still connected (I only unplug a cable from the service network)

Thanks,

ESG




2009/5/21 Jonathan Brassow <jbrassow redhat com>

On May 21, 2009, at 6:44 AM, ESGLinux wrote:

Hello,

I continue with my 2 node cluster and with strange behaviours (or not....).

I´ll explain the actual situation.

I have a cluster with 2 nodes. I  Use IPMI as fencing device and all works fine.

I have two separate networks for the services and for the cluster management. (as I was instructed in this list, thanks for the advice ;-) )

I use a iscsi volumen mounted on the two nodes and with GFS on it.

The problem I have now is that when one of the nodes lose the connection to the service network (I disconnect the cable from the interface) I expect the second node fence this node and take the control of the services. But what I have is that the 2 nodes halt, (no reboot, halt), is this normal?

one detail, the access to the GFS volumen is through this service network. When I pull the cable I lose the connection to it. Can be this the problem?

What do your logs say?  Was fencing ever attempted?  completed?  Are you pulling the connection that allows for IPMI communication?

 brassow

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