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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10882) Move DirectBufferPool into common util
Date Thu, 24 Jul 2014 11:24:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14073101#comment-14073101
] 

Hudson commented on HADOOP-10882:
---------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #622 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/622/])
HADOOP-10882. Move DirectBufferPool into common util. Contributed by Todd Lipcon. (todd: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1613006)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/DirectBufferPool.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestDirectBufferPool.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/BlockReaderLocal.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/BlockReaderLocalLegacy.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/PacketReceiver.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/util/DirectBufferPool.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestDirectBufferPool.java


> Move DirectBufferPool into common util
> --------------------------------------
>
>                 Key: HADOOP-10882
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10882
>             Project: Hadoop Common
>          Issue Type: Task
>          Components: util
>    Affects Versions: 2.6.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Minor
>             Fix For: 2.6.0
>
>         Attachments: hadoop-10882.txt
>
>
> MAPREDUCE-2841 uses a direct buffer pool to pass data back and forth between native and
Java code. The branch has an implementation which appears to be derived from the one in HDFS.
Instead of copy-pasting, we should move the HDFS DirectBufferPool into Common so that MR can
make use of it.



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