startInfoServer(conf);
initIpcServer(conf);
myMetrics = new DataNodeMetrics(conf, storage.getStorageID());
setCountingLoggers(myMetrics);
threadLivenessReporter = new DatanodeThreadLivenessReporter(conf.getLong(
"dfs.datanode.thread.liveness.threshold", 240 * 1000),
myMetrics.threadActiveness);
}