[jboss-user] [JBossCache] - Re: far cache pattern

[manik.surtani@jboss.com]

"mbroons" wrote : Can i use this pattern to provide some kind of highly available cluster ?

Yes.

"mbroons" wrote : 
  | I would have cluster A caches delegating to far cache A (inside the cluster A)
  | I would have cluster B caches delegating to far cache B (inside the cluster B)
  | 
  | Can i set up something like:
  | 
  | cluster A caches delegating to far cache A delegating to far cache B
  | cluster B caches delegating to far cache B delegating to far cache A
  | 
  | there is cyclic dependency there. What will happen exactly ?

Not a cyclic dependency, but far cache A and far cache B replicating to each other may cause issues.  Why not just have something like:


  | Cluster A delegates to far cache A (FC-A)
  | Cluster B delegates to far cache B (FC-B)
  | 
  | FC-A and FC-B are in their own, separate cluster replicating state between themselves.
  | 

This way, you still have 2 separate clusters (A and B) using far cache backends (FC-A and FC-B), and FC-A and FC-B are fail-safe since they back up to each other, and also cluster A and B can see the state in each other via the far caches.

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