/**
* this initializes the managers that support the internal communication network.
*
* <p>TODO this should be refactored to use the conf file
*/
private void startManagers() {
if (conf == null) return;
// start the inbound and outbound manager worker threads
ManagementQueue.startup();
// create manager for network changes
networkMgr = NetworkManager.initManager(conf);
// create manager for leader election. The number of votes (default 1)
// is used to break ties where there are an even number of nodes.
// electionMgr = ElectionManager.initManager(conf);
raftMgr = RaftManager.initManager(conf, clusterConfList);
// create manager for accepting jobs
jobMgr = JobManager.initManager(conf);
System.out.println(
"---> Server.startManagers() expecting "
+ conf.getAdjacent().getAdjacentNodes().size()
+ " connections");
// establish nearest nodes and start sending heartbeats
heartbeatMgr = HeartbeatManager.initManager(conf);
for (NodeDesc nn : conf.getAdjacent().getAdjacentNodes().values()) {
HeartbeatData node =
new HeartbeatData(nn.getNodeId(), nn.getHost(), nn.getPort(), nn.getMgmtPort());
// fn(from, to)
HeartbeatPusher.getInstance().connectToThisNode(conf.getNodeId(), node);
}
// heartbeatMgr.start();
// manage heartbeatMgr connections
HeartbeatPusher conn = HeartbeatPusher.getInstance();
conn.start();
/**
* *** Leader Election Start 29th March
* 2015************************************************************************* This will start
* the monitor thread and check whether there is leader or not. If not then it will start the
* Election. This thread is used to send appendRPC to all the followers. IF they don't receive
* messages within a certain period then they will start election
*/
raftMgr.startMonitor();
logger.info("Server " + conf.getNodeId() + ", managers initialized");
// Adding code to add all clusters
}
public void release() {
if (HeartbeatManager.getInstance() != null) HeartbeatManager.getInstance().release();
}