Examples of JvmMetrics

  }


  public static DataNodeMetrics create(Configuration conf, String dnName) {
    String sessionId = conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY);
    MetricsSystem ms = DefaultMetricsSystem.instance();
    JvmMetrics jm = JvmMetrics.create("DataNode", sessionId, ms);
    String name = "DataNodeActivity-"+ (dnName.isEmpty()
        ? "UndefinedDataNodeName"+ DFSUtil.getRandom().nextInt() 
            : dnName.replace(':', '-'));


    // Percentile measurement is off by default, by watching no intervals

Examples of org.apache.hadoop.metrics2.source.JvmMetrics


  public static NameNodeMetrics create(Configuration conf, NamenodeRole r) {
    String sessionId = conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY);
    String processName = r.toString();
    MetricsSystem ms = DefaultMetricsSystem.instance();
    JvmMetrics jm = JvmMetrics.create(processName, sessionId, ms);
    
    // Percentile measurement is off by default, by watching no intervals
    int[] intervals = 
        conf.getInts(DFSConfigKeys.DFS_METRICS_PERCENTILES_INTERVALS_KEY);
    return ms.register(new NameNodeMetrics(processName, sessionId,

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.