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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10713) Throttle FsNameSystem lock warnings
Date Tue, 27 Sep 2016 01:15:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15524693#comment-15524693
] 

Hudson commented on HDFS-10713:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10491 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/10491/])
HDFS-10713. Throttle FsNameSystem lock warnings. Contributed by Hanisha (arp: rev 059058f9614613667d5385f76022294e07e140aa)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSNamesystem.java


> 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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