[jboss-dev-forums] [Design of Messaging on JBoss (Messaging/JBoss)] - Re: Server side HA and failover

[timfox]

"clebert.suconic at jboss.com" wrote : 
  | Now... viewAccept will perform a failOver if a view is changed. I still need to add some logic to have only one server accepting the failOver but that is pretty easy. 
  | 

The most trivial way of doing this is to define a failover node F of a failed node A as the node to the right (or left, it doesn't matter) of the failed node in the jgroups view. Also need to think of the view as a "ring".

E.g. if the jgroups view has addresses:

A
B
C
D
E

then node A fails over to node B, node B fails over to node C, node C fails onto node D, node D fails onto node E, node E fails onto node A

Questions:

Is this sufficient for our needs?

Is there any sense in supporting multiple failover nodes for a single node? Or does that make no sense?

Should the policy really be pluggable? (Probably yes)



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