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
work.
---
** [tickets:#2097] Both controllers went for reboot while recovering from split
brain**
**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
**Attachments:**
-
[Fencing_logs.zip](https://sourceforge.net/p/opensaf/tickets/2097/attachment/Fencing_logs.zip)
(43.3 kB; application/zip)
S : Ubuntu 64bit
Changeset : 7997 ( 5.1.FC)
Setup : 3-node cluster (2 controllers, 1 payload) Remote fencing enabled
Steps:
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
controller.
Syslog attached for both controllers
---
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