[Pacemaker] Don't want to stop lsb resource on migration

[Andrew Beekhof]

On 19 Mar 2014, at 6:56 am, Bingham <knee-jerk-reaction at hotmail.com> wrote:

> 
> My problem is that I need to have rabbitmq running on both node1 and node2.
> I also need the IP to fail over if rabbitmq were to fail on the current node.
> 
> The 2 rabbitmq services are communicating with each other. 
> Data is pushed to the clients. 
> 
> Even though the IP may currently live on node1, data may flow through node1 then through node2 (via rabbit) and out to client.
> 
>                        Rnode1 -------> client1
>                      /     /|\
> DB---->VIP         |
>                            \|/
>                       Rnode2 --------> client2
> 
> 
> 
> Maybe I should not have these resources grouped together since that implies collocation infinity for IP and rabbitmq?

Correct. It also sounds like rabbitmq should be a master/slave resource

> 
> 
> Steve
> 
> 
> From: andrew at beekhof.net
> Date: Tue, 18 Mar 2014 11:44:34 +1100
> To: pacemaker at oss.clusterlabs.org
> Subject: Re: [Pacemaker] Don't want to stop lsb resource on migration
> 
>  
> On 14 Mar 2014, at 1:00 am, Bingham <knee-jerk-reaction at hotmail.com> wrote:
>  
> > Hello,
> > 
> > My setup:
> >          I have a 2 node cluster using pacemaker and heartbeat. I have 2 resources, ocf::heartbeat:IPaddr and lsb:rabbitmq-server.       
> >          I have these 2 resources grouped together and they will fail over to the other node.
> > 
> > 
> > 
> > question:
> >          When rabbitmq is migrated to node1 from node2 I would like to 'not' have the the </etc/init.d/rabbitmq-server stop> happen on the failed server (node1 in this example).
>  
> 'migrate' has special meaning here.
> After a failure rabbitmq is moved (stopped on the old node and started on the new one), which is different from a migration.
>  
> Leaving rabbitmq in an unclean state on node1 would definitely not be a good idea.
>  
> > 
> >           Is it possible to do this in crm? 
> >  
> >          I realize that I could hack the initscript's case statement for stop to just "exit 0", but I am hoping there is a way to do this in crm.
> > 
> >   
> > Thanks for any help,
> > Steve
> >           
> > 
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>  
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