[jboss-dev-forums] [Design of Clustering on JBoss (Clusters/JBoss)] - Re: Some cluster enhancements...

[ScottMarlowNovell]

anonymous wrote :  
  | anonymous wrote : 
  |   | Hmm, ability to call a single member other than coord seemed like such an obviously good thing that I had to double check to confirm it wasn't already there! :)
  |   | Shouldn't the param be a ClusterNode, which is the type returned by getClusterNodes()? 
  |   | 
  | Shouldn't the param be a ClusterNode, which is the type returned by getClusterNodes()? 
Definitely, good point!

anonymous wrote : 
  | anonymous wrote : 
  |   | 2. A load balancing policy based on FirstAvailable that always favors a same machine choice.
  |   | 
  | This sounds similar to http://jira.jboss.com/jira/browse/JBAS-4455  which Galder Zamarreno is working on. Probably you guys should coordinate. 
  | 
JBAS-4455 seems a little different but there could be opportunities to combine our approaches.  

anonymous wrote : 
  | anonymous wrote : 
  |   | 3. A load balancing policy that always picks the ha-singleton server (depends on ha-jndi and a server side ha-singleton). 
  |   | 
  | OK. How does it work?
  | 
A ha-singleton binds its location (ip address + port) to ha-jndi.  The load balancing policy does a ha-jndi lookup of the singleton node and does a little magic to determine which server target is the singleton.  Perhaps this could be combined with the JBAS-4455 solution, although it might be easier to understand for application developers to have separate solutions.  

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