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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 Sat, 12 Nov 2011 01:36:54 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13148925#comment-13148925
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Tsz Wo (Nicholas), SZE commented on HDFS-2316:
----------------------------------------------

Alejandro,

We are getting very close.  All except #2 are documentation discussion.  Let's continue documentation
related discussion in HDFS-2552.  I will response to your other points there.

For #2, the reason of having "urlString" is to allow changing encoding/token format later
on, e.g.
{noformat}
{"Token": { "newEncoding" : <TOKEN> } }
{noformat}

For path, it seems using a string is just fine.  But if you disagree, I have no problem to
change the JSON response for GETHOMEDIRECTORY to
{noformat}
{"string": <PATH_STRING>}
{noformat}
Which one do you prefer, {"string": <PATH>} or {"Path": <PATH>}?

BTW, thank you so much for all the comments.  They are all very helpful!
                
> 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, WebHdfsAPI20111111.pdf,
test-webhdfs, test-webhdfs-0.20s
>
>
> 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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