[jboss-jira] [JBoss JIRA] Created: (JBAS-5659) Intra-clustering communication component for mod_cluster

[Brian Stansberry (JIRA)]

Intra-clustering communication component for mod_cluster
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                 Key: JBAS-5659
                 URL: http://jira.jboss.com/jira/browse/JBAS-5659
             Project: JBoss Application Server
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
          Components: Clustering, Web (Tomcat) service
            Reporter: Brian Stansberry
         Assigned To: Brian Stansberry
             Fix For: JBossAS-5.1.0.CR1


Communication component that handles intra-cluster communication within the AS instances, aggregates information and passes to the component that communicates with mod_cluster on the httpd side.

Tracks cluster membership. A node (one per cluster) or set of nodes (one per domain) are determined to be master.

All nodes receive events from a listener layer indicating deployments, JBossWeb Server start and stop etc.  Pass those one to their master via RPCs.  All nodes also respond to periodic RPCs from master node asking for load information.

Master node(s) inform httpd side about events that are received. Periodically request load information from nodes, aggregate into overall load factors and provide to mod_cluster via STATUS messages.  Inform mod_cluster about topology changes (crashed members, etc).

Initial expectation is this will be based upon HASingletonSupport class.

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