All,

Few months ago I had started discussion on Host HA for CloudStack and given 
4.10 is voted and to be announced with master branch cut I would like to 
re-kick discussion around reviewing and acceptance of the feature that is 
pending since Feb 2017.


To briefly share some key points:

- This feature is disabled by default and provides zone/cluster/host level kill 
switches

- This brings in a reliable way to fence (power off) and recover (reboot) a host

- Allows implementation of HA provider plugin specific to a hypervisor and 
storage stack, by default we've implemented a plugin for hosts that have KVM+NFS

- For more details please read the FS: 
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Host+HA


I had also given a talk about this feature during CCCNA17:

Reliable host fencing - 
http://rohit.yadav.xyz/files/talks/cccna17-reliable-host-fencing.pdf


Pull request: https://github.com/apache/cloudstack/pull/1960 (as soon as the 
4.10->4.11 db upgrade paths are fixed, I can rebase and fix the branch)


- Rohit

rohit.ya...@shapeblue.comĀ 
www.shapeblue.com
53 Chandos Place, Covent Garden, London  WC2N 4HSUK
@shapeblue
  
 

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