[jboss-jira] [JBoss JIRA] Created: (JBAS-4919) HASingletonElectionPolicySimple does not handle heterogeneous topologies

[Brian Stansberry (JIRA)]

HASingletonElectionPolicySimple does not handle heterogeneous topologies
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                 Key: JBAS-4919
                 URL: http://jira.jboss.com/jira/browse/JBAS-4919
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Clustering
    Affects Versions: JBossAS-5.0.0.Beta2
            Reporter: Brian Stansberry
         Assigned To: Brian Stansberry
             Fix For: JBossAS-4.2.3.GA


HASingletonElectionPolicySimple is just getting the current view from HAPartition and making a decision based on that, ignoring the fact that the service it's managing may not be running on all members of the cluster.

The HASingletonElectionPolicy API should be changed.  The isMasterReplica method should take (List<ClusterNode> newReplicants, int newViewID) rather than HAPartition.  The partition is provided via dependency injection at startup, no need to pass it in the method call. HASingletonElectionPolicySimple uses the provided replicants to make its decision, not the HAPartition view.

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