@Override
public void start() {
// / Create the AMInfo for the current AppMaster
if (amInfos == null) {
amInfos = new LinkedList<AMInfo>();
}
AMInfo amInfo =
DragonBuilderUtils.newAMInfo(
appAttemptId, startTime, containerID, nmHost, nmPort, nmHttpPort);
amInfos.add(amInfo);
job = createJob(getConfig());
// metrics system init is really init & start.
// It's more test friendly to put it here.
DefaultMetricsSystem.initialize("DragonAppMaster");
// create a job event for job intialization
JobEvent initJobEvent = new JobEvent(job.getID(), JobEventType.JOB_INIT);
// Send init to the job (this does NOT trigger job execution)
// This is a synchronous call, not an event through dispatcher. We want
// job-init to be done completely here.
jobEventDispatcher.handle(initJobEvent);
super.start();
// All components have started, start the job.
startJobs();
}
/** Start listening for edits via RPC. */
public void start() throws IOException {
Preconditions.checkState(!isStarted(), "JN already running");
validateAndCreateJournalDir(localDir);
DefaultMetricsSystem.initialize("JournalNode");
JvmMetrics.create(
"JournalNode",
conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY),
DefaultMetricsSystem.instance());
InetSocketAddress socAddr = JournalNodeRpcServer.getAddress(conf);
SecurityUtil.login(
conf,
DFSConfigKeys.DFS_JOURNALNODE_KEYTAB_FILE_KEY,
DFSConfigKeys.DFS_JOURNALNODE_USER_NAME_KEY,
socAddr.getHostName());
registerJNMXBean();
httpServer = new JournalNodeHttpServer(conf, this);
httpServer.start();
rpcServer = new JournalNodeRpcServer(conf, this);
rpcServer.start();
}
@SuppressWarnings("unchecked")
@Override
public void serviceStart() throws Exception {
// start all the components
startServices();
super.serviceStart();
this.state = DAGAppMasterState.IDLE;
// metrics system init is really init & start.
// It's more test friendly to put it here.
DefaultMetricsSystem.initialize("DAGAppMaster");
this.appsStartTime = clock.getTime();
AMStartedEvent startEvent =
new AMStartedEvent(appAttemptID, startTime, appsStartTime, appSubmitTime);
dispatcher.getEventHandler().handle(new DAGHistoryEvent(startEvent));
this.lastDAGCompletionTime = clock.getTime();
if (!isSession) {
startDAG();
} else {
LOG.info("In Session mode. Waiting for DAG over RPC");
this.dagSubmissionTimer = new Timer(true);
this.dagSubmissionTimer.scheduleAtFixedRate(
new TimerTask() {
@Override
public void run() {
checkAndHandleSessionTimeout();
}
},
sessionTimeoutInterval,
sessionTimeoutInterval / 10);
}
}
public static NameNode createNameNode(String argv[], Configuration conf) throws IOException {
if (conf == null) {
conf = new HdfsConfiguration();
}
StartupOption startOpt = parseArguments(argv);
if (startOpt == null) {
printUsage(System.err);
return null;
}
setStartupOption(conf, startOpt);
switch (startOpt) {
// HOP
case DROP_AND_CREATE_DB:
{ // delete everything other than inode and blocks table. this is tmp fix for safe mode
dropAndCreateDB(conf);
return null;
}
case FORMAT:
{
boolean aborted =
format(conf, startOpt.getForceFormat(), startOpt.getInteractiveFormat());
terminate(aborted ? 1 : 0);
return null; // avoid javac warning
}
case GENCLUSTERID:
{
System.err.println("Generating new cluster id:");
System.out.println(StorageInfo.newClusterID());
terminate(0);
return null;
}
case FINALIZE:
{
throw new UnsupportedOperationException("HOP: FINALIZE is not supported anymore");
}
case BOOTSTRAPSTANDBY:
{
throw new UnsupportedOperationException("HOP: BOOTSTRAPSTANDBY is not supported anymore");
}
case INITIALIZESHAREDEDITS:
{
throw new UnsupportedOperationException(
"HOP: INITIALIZESHAREDEDITS is not supported anymore");
}
case BACKUP:
case CHECKPOINT:
{
throw new UnsupportedOperationException(
"HOP: BACKUP/CHECKPOINT is not supported anymore");
}
case RECOVER:
{
new UnsupportedOperationException("Hops. Metadata recovery is not supported");
return null;
}
default:
{
DefaultMetricsSystem.initialize("NameNode");
return new NameNode(conf);
}
}
}
