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https://issues.apache.org/jira/browse/HDFS-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13710954#comment-13710954
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Hudson commented on HDFS-4657:
------------------------------
SUCCESS: Integrated in Hadoop-Yarn-trunk #273 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/273/])
HDFS-4657. Limit the number of blocks logged by the NN after a block report to
a configurable value. (Aaron Twinning Meyers via Colin Patrick McCabe)
(cmccabe:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1503862)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
> 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: 2.2.0
>
> 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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