- **status**: assigned --> duplicate
- **Comment**:
Marking this as a duplicate of #439. #439 shall be the base ticket and shall be
broken down into multiple smaller tickets.
---
** [tickets:#1229] Enhanced controller failover handling and split brain
avoidance by interpreting cluster topology information**
**Status:** duplicate
**Milestone:** 5.0.FC
**Created:** Wed Dec 03, 2014 05:58 AM UTC by Mathi Naickan
**Last Updated:** Sun Nov 01, 2015 09:36 PM UTC
**Owner:** Mathi Naickan
The OpenSAF FM is responsible for detecting and performing controller failover.
In the OpenSAF architecture, FM is also a reference implementation which is
designated for the OpenSAF integrator to enhance and customize to suit his
clustering requirements to handle split brain through out of band mechanisms or
other such means.
The opensaf_reboot script is also a point of integration, where-in the system
integrator can customize it to invoke any out of band mechanisms to perform
remote reboots and can also check the status of shared resources like DRBD,
ipaddress etc. (including say by using/invoking resource agents) before taking
any action during controller failover.
It is proposed to bring in a small improvement inside OpenSAF itself such that
we can improve avoid getting into a split brain situation particularly in
scenarios that involve a split cluster, etc.
This ticket is dependent on #1228.
This is a short term solution to ease and/or provide handholding for the
integrator.
---
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