pvary commented on a change in pull request #633: HIVE-21740: Collect LLAP
execution latency metrics
URL: https://github.com/apache/hive/pull/633#discussion_r287778469
##########
File path:
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/metrics/LlapTaskSchedulerMetrics.java
##########
@@ -276,6 +302,43 @@ private void getTaskSchedulerStats(MetricsRecordBuilder
rb) {
.addCounter(SchedulerPendingPreemptionTaskCount,
pendingPreemptionTasksCount.value())
.addCounter(SchedulerPreemptedTaskCount, preemptedTasksCount.value())
.addCounter(SchedulerCompletedDagCount, completedDagcount.value());
+ daemonTaskLatency.forEach((k, v) -> rb.addGauge(v, v.getMean()));
+ }
+
+ static class DaemonLatencyMetric implements MetricsInfo {
+ private String name;
+ private ExponentiallyDecayingReservoir reservoir;
Review comment:
Do not like Guava, and Stats appeared in guava 20. We are on 19 now and
upgrading can cause problems with other projects like hadoop.
Moved to using apache math DescriptiveStatistics instead.
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