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https://issues.apache.org/jira/browse/HDFS-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13451985#comment-13451985
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Hudson commented on HDFS-2656:
------------------------------
Integrated in Hadoop-Hdfs-trunk-Commit #2775 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2775/])
HDFS-2656. Add libwebhdfs, a pure C client based on WebHDFS. Contributed
by Jaimin D Jetly and Jing Zhao (Revision 1382836)
Result = SUCCESS
szetszwo :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1382836
Files :
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/pom.xml
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/CMakeLists.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/CMakeLists.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/resources
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/resources/FindJansson.cmake
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/exception.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/exception.h
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/expect.h
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_http_client.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_http_client.h
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_http_query.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_http_query.h
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_jni.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_json_parser.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_json_parser.h
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_web.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/jni_helper.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/jni_helper.h
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/test_libwebhdfs_multi_write.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/test_libwebhdfs_ops.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/test_libwebhdfs_read.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/test_libwebhdfs_threaded.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/test_libwebhdfs_write.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/test_read_bm.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/webhdfs.h
> 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
> Reporter: Zhanwei.Wang
> Assignee: Jing Zhao
> Fix For: 2.0.3-alpha
>
> 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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