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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6403) Add metrics for log warnings reported by JVM pauses
Date Fri, 20 Jun 2014 02:48:26 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14038298#comment-14038298
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Yongjun Zhang commented on HDFS-6403:
-------------------------------------

Many thanks ATM!


> Add metrics for log warnings reported by JVM pauses
> ---------------------------------------------------
>
>                 Key: HDFS-6403
>                 URL: https://issues.apache.org/jira/browse/HDFS-6403
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, namenode
>    Affects Versions: 2.4.0
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>             Fix For: 2.5.0
>
>         Attachments: HDFS-6403.001.patch, HDFS-6403.002.patch, HDFS-6403.003.patch, HDFS-6403.004.patch,
HDFS-6403.005.patch
>
>
> HADOOP-9618 logs warnings when there are long GC pauses. If this is exposed as a metric,
then they can be monitored.



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