To be able to handle split-brain with e.g. stonith there need to be a way for 
stonith to communicate with, in this case, the hypervisor, in some other 
configuration it may be e..g IPMI. If this only interface has been brought down 
stonith can not fence the other node. The correct way is to add an additonal 
interface to use for stonith with TCP. For testing purposes and if using only 
one interface you can use command tipc-config -bd eth:eth0 instead, this should 


** [tickets:#2097] Both controllers went for reboot while recovering from split 

**Status:** unassigned
**Milestone:** 5.2.FC
**Created:** Thu Oct 06, 2016 04:58 AM UTC by Chani Srivastava
**Last Updated:** Thu Oct 13, 2016 09:32 AM UTC
**Owner:** nobody

 (43.3 kB; application/zip)

S : Ubuntu 64bit
Changeset : 7997 ( 5.1.FC)
Setup : 3-node cluster (2 controllers, 1 payload) Remote fencing enabled

1. Bring up OpenSaf on all nodes
2. Enable STONITH
3. Disconnect network from both controllers at the same time -- This will 
stimulate split brain and both controllers become ACTIVE
4. Connect network to both controllers together --- Both controllers reboot

Expected: Controllers should join the cluster by rebooting only one of the 

Syslog attached for both controllers


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