public TaskTrackerMetricsInst(TaskTracker t) {
super(t);
JobConf conf = tt.getJobConf();
String sessionId = conf.getSessionId();
// Initiate Java VM Metrics
JvmMetrics.init("TaskTracker", sessionId);
// Create a record for Task Tracker metrics
MetricsContext context = MetricsUtil.getContext("mapred");
metricsRecord = MetricsUtil.createRecord(context, "tasktracker"); // guaranteed never null
metricsRecord.setTag("sessionId", sessionId);
context.registerUpdater(this);
}
public RpcMetrics(String hostName, String port, Server server) {
myServer = server;
MetricsContext context = MetricsUtil.getContext("rpc");
metricsRecord = MetricsUtil.createRecord(context, "metrics");
metricsRecord.setTag("port", port);
LOG.info("Initializing RPC Metrics with hostName=" + hostName + ", port=" + port);
context.registerUpdater(this);
// Need to clean up the interface to RpcMgt - don't need both metrics
// and server params
rpcMBean = new RpcActivityMBean(registry, hostName, port);
}
