[ClusterLabs] Recovering after split-brain

Dmitri Maziuk dmitri.maziuk at gmail.com
Tue Jun 21 10:57:38 EDT 2016

On 2016-06-20 17:19, Digimer wrote:

> Nikhil indicated that they could switch where traffic went up-stream
> without issue, if I understood properly.

They have some interesting setup, but that notwithstanding: if split 
brain happens some clients will connect to "old master" and some: to 
"new master", dep. on arp update. If there's a shared resource 
unavailable on one node, clients going there will error out. The other 
ones will not. It will work for some clients.

Cf. both nodes going into stonith deathmatch and killing each other: the 
service now is not available for all clients. What I don't get is the 
blanket assertion that this "more highly" available that option #1.


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