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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12946) Ensure one JVMPauseMonitor thread per JVM
Date Sun, 20 Mar 2016 18:23:33 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Zhuge updated HADOOP-12946:
--------------------------------
    Target Version/s: 2.8.0
              Status: Patch Available  (was: Open)

> Ensure one JVMPauseMonitor thread per JVM
> -----------------------------------------
>
>                 Key: HADOOP-12946
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12946
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.8.0
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>            Priority: Minor
>         Attachments: HADOOP-12946-001.patch
>
>
> Ensure at most one JVMPauseMonitor thread is running per JVM when there are multiple
JVMPauseMonitor instances, e.g., in mini clusters. This will prevent redundant GC pause log
messages while still maintaining one monitor thread running.
> This is a different way to fix HADOOP-12855.



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