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From "Tsz Wo (Nicholas), SZE (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2316) webhdfs: a complete FileSystem implementation for accessing HDFS over HTTP
Date Tue, 08 Nov 2011 02:36:52 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146044#comment-13146044
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Tsz Wo (Nicholas), SZE commented on HDFS-2316:
----------------------------------------------

In HTTP/1.1 or other programming languages which support case insensitive, names are case
insensitive but string values are case sensitive.  Our case is the same: parameter names are
case insensitive and string values (including paths) are case sensitive.

Case insensitive approaches are designed for inexperienced users.  For experienced users,
either way is fine as long as the documentation is clear.  SQL, HTTP and other case insensitive
examples like BASIC are all designed for inexperienced users in order to cover a wider audience.
 Some may claim that SQL and HTTP are mess but no one can deny that they are the most popular
standards.
                
> 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, WebHdfsAPI20111103.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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