public void addMetricsPreemptionTimeToKill(long value) {
    totalPreemptionTimeToKill.incr(value);

    if (value > maxTimeToKill) {
      maxTimeToKill = value;
      maxPreemptionTimeToKill.set(maxTimeToKill);
    }

    for (MutableQuantiles q : percentileTimeToKill) {
      q.add(value);
    }
  }
Metrics about the llap daemon executors.
llap-server/src/java/org/apache/hadoop/hive/llap/metrics/LlapDaemonExecutorMetrics.java