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https://issues.apache.org/jira/browse/HDFS-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143452#comment-13143452
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Tsz Wo (Nicholas), SZE commented on HDFS-2316:
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> gethomedir is required as you don't know where the FS impl creates the home 
> dir.

Okay, I can add it to webhdfs.

> The doAs parameter name was chosen to mimic the Java API, real.user is kind 
> of confusing, do you mean the proxy user or the doAs user. Plus when doing 
> Kerberos you don't use user.name. IMO doAs is a easier not to get confused.

I am fine with using doAs instead of realUser.

BTW, hadoop auth use "user.name".  The dot in the middle is different from 
other naming convention.  How about changing it to username?

> The GET_BLOCK_LOCATIONS private API, how are you differentiating private and 
> public APIs?

We will document it and state that it is a private unstable API.

                
> 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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