public MutableStat newStat(String name, String desc, String sampleName, String valueName) {
    return newStat(name, desc, sampleName, valueName, false);
  }
Create a mutable metric with stats
@param name       of the metric
@param desc       metric description
@param sampleName of the metric (e.g., "Ops")
@param valueName  of the metric (e.g., "Time" or "Latency")
@return a new mutable metric object
hbase-hadoop-compat/src/main/java/org/apache/hadoop/metrics2/lib/DynamicMetricsRegistry.java