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From "Alejandro Abdelnur (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2316) webhdfs: a complete FileSystem implementation for accessing HDFS over HTTP
Date Mon, 24 Oct 2011 15:19:32 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13134134#comment-13134134
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Alejandro Abdelnur commented on HDFS-2316:
------------------------------------------

* Regarding ranges: it is more about ease of use and full description of the resource fragment
being fetched in the URL.

* Regarding versioning: IMO it seems cleaner to do that at prefix level. Given a prefix a
user will know what version of the API the server side supports. Third, from the implementation
perspective, using a prefix in jax-rs instead a parameter allows to easily have a different
driver classes; thus providing a clean separation & coexistence of implementations in
the same server. 
                
> webhdfs: a complete FileSystem implementation for accessing HDFS over HTTP
> --------------------------------------------------------------------------
>
>                 Key: HDFS-2316
>                 URL: https://issues.apache.org/jira/browse/HDFS-2316
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: WebHdfsAPI20111020.pdf
>
>
> We current have hftp for accessing HDFS over HTTP.  However, hftp is a read-only FileSystem
and does not provide "write" accesses.
> In HDFS-2284, we propose to have webhdfs for providing a complete FileSystem implementation
for accessing HDFS over HTTP.  The is the umbrella JIRA for the tasks.

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