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https://issues.apache.org/jira/browse/HDFS-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453376#comment-13453376
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Colin Patrick McCabe commented on HDFS-2656:
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bq. The issue here is not XML parsing. The issue is finding the XML files that
are loaded from classpath and jar files.
I think the {{CLASSPATH}} environment variable should have a list of
directories we should search for XML files, right? Anyway, Jing has filed
HDFS-3917 to discuss this issue, perhaps we should continue our conversation
there.
I also agree that it might have been nice to do some of the refactoring before
committing this. However, since this is new code (nobody is using it yet), and
not compiled by default, we do have some ability to fix things before it
becomes production code.
> 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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