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https://issues.apache.org/jira/browse/HDFS-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133129#comment-13133129
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Alejandro Abdelnur commented on HDFS-2316:
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Thanks Sanjay. A couple of follow up issues in the current API:
* Permission masks are currently octal in webhdfs and symbolic in hoop. IMO, it
should make sense to support both.
* File ranges, webhdfs uses HTTP 'content-ranges' header, hoop uses 2 query
string params offset= & len=. In webhdfs, except for this type of requests, for
all other request the URL itself fully describes what is being requested.
Because webhdfs uses the HTTP 'content-ranges' header a URL is not sufficient
to specify the desired range. With Hoop approach a URL self-contains the
desired range, making it easier to use from libraries and scripts.
> 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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