[Pacemaker] IP fail over without controlling the services

[Dongdong Zhou]

Thanks Phillip, That works very well. --Dongdong

On Fri, 2012-07-27 at 07:40 -0400, Phillip Frost wrote:
> On Jul 27, 2012, at 7:06 AM, Dongdong Zhou wrote:
> 
> > Hi Vossel,
> > 
> > Thanks for the information. I have tried to put mysql un-managed, but in
> > this situation, when I shutdown mysqld or make as standby of the node
> > which the IP resource is on, the cluster will put the IP resource as
> > stopped other than failing over. Also, if I shutdown mysqld on the other
> > node, the cluster doesn't even know the mysql service is stopped. 
> > 
> > Does the cluster only monitor resource on the active node?
> 
> If the resource is unmanaged, then pacemaker won't manage it. That includes attempting to start it on the other node.
> 
> It sounds like you have mysql running on both nodes all the time. If that's true, then you probably want a clone (unmanaged) to monitor mysql on both nodes. Colocate your IP with the mysql clone, and then the IP must run on a node with a working mysql.
> 
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