[Pacemaker] STONITH without mandatory success possible?

[Andrew Beekhof]

On 20/06/2013, at 6:33 AM, Doug Clow <doug.clow at dashbox.com> wrote:

> Hello All,
> 
> I have some 2-node active-passive clusters that occasionally lose Corosync connectivity.  The connectivity is fixed with a reboot.  They don't have shared storage so stonith doesn't have to happen for another node to take control of the resource.  Also they are VMs so I can't use a standard stonith method.

fence_xvm works nicely for this most virt clusters, there was a vmware one floating around at one point

>  I could use the vmware module, but then if the VM host was down, no node would take control.  Is there a way to make stonith success not mandatory?  

You can turn it off...

> That way the other node would always take control and then it would 'try' to reboot the other machine if possible.
> 
> On a related issue, CentOS 6.4 doesn't come with the null or ssh devices.  I've tried compiling from source but the resulting stonith modules are not in the Red Hat type of format.  Is there a way to get the null or ssh device into CentOS?

The RH ones are in the fence-agents package.