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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2656) Implement a pure c client based on webhdfs
Date Fri, 07 Sep 2012 02:21:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13450274#comment-13450274
] 

Hadoop QA commented on HDFS-2656:
---------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12544145/HDFS-2656.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 6 new or modified test files.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/3158//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3158//console

This message is automatically generated.
                
> Implement a pure c client based on webhdfs
> ------------------------------------------
>
>                 Key: HDFS-2656
>                 URL: https://issues.apache.org/jira/browse/HDFS-2656
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: webhdfs
>    Affects Versions: 3.0.0
>            Reporter: Zhanwei.Wang
>            Assignee: Jing Zhao
>         Attachments: HDFS-2656.patch, HDFS-2656.patch, HDFS-2656.patch, HDFS-2656.unfinished.patch,
teragen_terasort_teravalidate_performance.png
>
>
> Currently, the implementation of libhdfs is based on JNI. The overhead of JVM seems a
little big, and libhdfs can also not be used in the environment without hdfs.
> It seems a good idea to implement a pure c client by wrapping webhdfs. It also can be
used to access different version of hdfs.

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