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https://issues.apache.org/jira/browse/HDFS-10713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal reopened HDFS-10713:
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> 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
> Fix For: 3.0.0-alpha2
>
> 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, HDFS-10713.007.patch,
> HDFS-10713.008.patch, HDFS-10713.009.patch, HDFS-10713.010.patch,
> HDFS-10713.011.patch, HDFS-10713.012.patch, HDFS-10713.branch-2.000.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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