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https://issues.apache.org/jira/browse/HDFS-3110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13248139#comment-13248139
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Hudson commented on HDFS-3110:
------------------------------

Integrated in Hadoop-Common-trunk-Commit #2013 (See 
[https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2013/])
    HDFS-3110. Use directRead API to reduce the number of buffer copies in 
libhdfs. Contributed by Henry Robinson. (Revision 1310185)

     Result = SUCCESS
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1310185
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native/hdfs.c
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native/hdfs.h
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native/hdfs_test.c
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native/tests/test-libhdfs.sh

                
> libhdfs implementation of direct read API
> -----------------------------------------
>
>                 Key: HDFS-3110
>                 URL: https://issues.apache.org/jira/browse/HDFS-3110
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: libhdfs
>            Reporter: Henry Robinson
>            Assignee: Henry Robinson
>             Fix For: 3.0.0
>
>         Attachments: HDFS-3110.0.patch, HDFS-3110.1.patch, HDFS-3110.2.patch, 
> HDFS-3110.3.patch, HDFS-3110.4.patch, HDFS-3110.5.patch
>
>
> Once HDFS-2834 gets committed, we can add support for the new API to libhdfs, 
> which leads to significant performance increases when reading local data from 
> C.

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