[ClusterLabs] Pacemaker and Stonith : passive node won't bring up resources

Mathieu Valois mvalois at teicee.com
Wed Jun 24 11:58:02 EDT 2015

Hi everybody,
I'm working with Pacemaker and Stonith for High-Availability with 
2-nodes cluster (called here A and B). Both nodes have one IPMI as fence 

The deal is :

  * A is currently running resources
  * B is in passive mode

Then I plug off the supply of the A node. So every eth interfaces AND 
IPMI on A are unavailable. Here comes the trick : B tries unsuccessfully 
to bring A down, cause A's IPMI is unreachable. When N attempts have 
been done, B gives up and brings itself to "Block" state (called IDLE in 
the log file).

Here is my question : how can I force B to bring back resources even if 
Stonith A fails ?

I understand the consequences (concurrent writes, etc ...), but I rather 
like these compared to a service unavailable at all.

Thanks for the help :)


Mathieu VALOIS

Bureaux : 8, rue du long Douet / 14760 BRETTEVILLE-SUR-ODON
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mvalois at teicee.com

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