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

[Jonathan Brassow]

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