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Date: Tue, 13 Sep 2016 18:46:21 +0000 (UTC)
From: "Hanisha Koneru (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12994105.1470092266000.562363.1473792381371@Atlassian.JIRA>
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References: <JIRA.12994105.1470092266000@Atlassian.JIRA> <JIRA.12994105.1470092266496@arcas>
Subject: [jira] [Updated] (HDFS-10713) Throttle FsNameSystem lock warnings
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archived-at: Tue, 13 Sep 2016 18:46:23 -0000


     [ https://issues.apache.org/jira/browse/HDFS-10713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hanisha Koneru updated HDFS-10713:
----------------------------------
    Attachment: HDFS-10713.006.patch

Thank you [~arpitagarwal]. I have updated the patch with the fixes.

> Throttle FsNameSystem lock warnings
> -----------------------------------
>
>                 Key: HDFS-10713
>                 URL: https://issues.apache.org/jira/browse/HDFS-10713
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: logging, namenode
>            Reporter: Arpit Agarwal
>            Assignee: Hanisha Koneru
>         Attachments: HDFS-10713.000.patch, HDFS-10713.001.patch, HDFS-10713.002.patch, HDFS-10713.003.patch, HDFS-10713.004.patch, HDFS-10713.005.patch, HDFS-10713.006.patch
>
>
> The NameNode logs a message if the FSNamesystem write lock is held by a thread for over 1 second. These messages can be throttled to at one most one per x minutes to avoid potentially filling up NN logs. We can also log the number of suppressed notices since the last log message.


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