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https://issues.apache.org/jira/browse/HDFS-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453359#comment-13453359
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Suresh Srinivas commented on HDFS-2656:
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bq. We might be able to read the XML preference files with an XML parsing
library, and determine the default NameNode and port this way. After all,
Hadoop preference files are just XML files.
The issue here is not XML parsing. The issue is finding the XML files that are
loaded from classpath and jar files.
BTW instead of HDFS-3916, providing some of the feedback that motivated that
jira as comments on this jira would have been better. That way a person working
on a jira understands what is required of the work they are doing. Also a work
gets in with some level of completeness.
> 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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