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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4657) Limit the number of blocks logged by the NN after a block report to a configurable value.
Date Wed, 30 Oct 2013 13:05:29 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13809059#comment-13809059
] 

Hudson commented on HDFS-4657:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #1594 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1594/])
move HDFS-4657 to branch-2.2.1 (cmccabe: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1536887)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


> Limit the number of blocks logged by the NN after a block report to a configurable value.
> -----------------------------------------------------------------------------------------
>
>                 Key: HDFS-4657
>                 URL: https://issues.apache.org/jira/browse/HDFS-4657
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.0.4-alpha
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>             Fix For: 2.2.1
>
>         Attachments: HDFS-4657.patch
>
>
> If incremental BR is received before first full BR NN will log a line for every block
on a DN.
> This can impact restart times pretty substantially if the DNs have a lot of blocks, and
since the FSNS write lock is held while processing the block report clients will not make
any progress.



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