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https://issues.apache.org/jira/browse/HDFS-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13145893#comment-13145893
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Tsz Wo (Nicholas), SZE commented on HDFS-2316:
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> Regarding #3, ... if we make the the param names case insensitive we should
> make the param values case insensitive as well. ...
For the case insensitive programming languages, identifer names are often case
insensitive but string values are case sensitive. SQL is an example.
> Regarding #4, ...
Yes, it requires the knowledge of the request. Even if absolute paths are
provided, it requires the knowledge of the request to know which NameNode it is
referring to. We simply cannot put everything in the response.
> Regarding #5, If we are going to support XML, we can easily add the root
> elements to XML. ...
But then the JSON schema and the XML schema will be different.
It does make sense to first generate JSON in the server side and then convert
to XML in the client side since the XML payload is heavy.
> Regarding #6, Regardless if Hoop as a FileSystem implementation, ...
Even the share the same FileSystem scheme, users have to change their
configuration to the corresponding implementation in webhdfs and hoop do not
share the same FileSystem implementation.
> 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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