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_r287777002
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File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
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@@ -4438,6 +4438,10 @@ 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_DECAY_METRIC_SIZE("hive.llap.metrics.decay.size", 1028,
+ "The number of samples to keep in the sampling reservoir"),
+ LLAP_DECAY_METRIC_ALPHA("hive.llap.metrics.decay.alpha", 0.015f,
+ "Exponential decay factor; higher is more biased towards newer
values"),
Review comment:
Removed the alpha since we moved from Decaying to simple window
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