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From "Harsh J (JIRA)" <>
Subject [jira] [Updated] (HIVE-9870) Add JvmPauseMonitor threads to HMS and HS2 daemons
Date Thu, 05 Mar 2015 14:59:38 GMT


Harsh J updated HIVE-9870:
    Attachment: HIVE-9870.patch

A second commit got added accidentally in previous patch. Removed it.

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