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From "Harsh J (JIRA)" <>
Subject [jira] [Created] (HIVE-9870) Add JvmPauseMonitor threads to HMS and HS2 daemons
Date Thu, 05 Mar 2015 08:21:39 GMT
Harsh J created HIVE-9870:

             Summary: Add JvmPauseMonitor threads to HMS and HS2 daemons
                 Key: HIVE-9870
             Project: Hive
          Issue Type: Improvement
          Components: HiveServer2, Metastore
    Affects Versions: 1.1
            Reporter: Harsh J
            Assignee: Harsh J
            Priority: Minor

The hadoop-common carries in it a nifty thread that prints GC or non-GC pauses within the
JVM if it exceeds a specific threshold.

This has been immeasurably useful in supporting several clusters, in identifying GC or other
form of process pauses to be the root cause of some event being investigated.

The HMS and HS2 daemons are good targets for running similar threads within it. It can be
loaded in an if-available style.

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