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_r289282970
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File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
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@@ -4438,6 +4438,8 @@ private static void
populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
LLAP_COLLECT_LOCK_METRICS("hive.llap.lockmetrics.collect", false,
"Whether lock metrics (wait times, counts) are collected for LLAP "
+ "related locks"),
+ LLAP_LATENCY_METRIC_WINDOW_SIZE("hive.llap.metrics.latency.window.size",
2048,
Review comment:
By severeal TCPDS tests it seems that we require minimally around 1000
measurements to have a steady result for the average. Set it to 2k to be sure
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