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Date: Tue, 18 Jul 2006 05:01:15 -0700 (PDT)
From: "Doug Cutting (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Resolved: (HADOOP-341) Enhance distcp to handle *http* as a
 'source protocol'.
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     [ http://issues.apache.org/jira/browse/HADOOP-341?page=all ]

Doug Cutting resolved HADOOP-341.
---------------------------------

    Resolution: Fixed

I just committed this.  Thanks!

> Enhance distcp to handle *http* as a 'source protocol'.
> -------------------------------------------------------
>
>                 Key: HADOOP-341
>                 URL: http://issues.apache.org/jira/browse/HADOOP-341
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: util
>            Reporter: Arun C Murthy
>         Assigned To: Arun C Murthy
>             Fix For: 0.5.0
>
>         Attachments: distcp.patch, distcp2.patch, distcp_input_uri.patch
>
>
> Requirements:
>   Presently distcp recursively copies a directory from one dfs to another i.e. both source and destination of of the *dfs* protocol.
>   Enhance it to handle *http* as the source protocol i.e. support copying files from arbitrary http-based sources into the dfs.
> Design:
>   
>   Follow distcp's current design: one map task per file which needs to be copied.
>   Caveat: distcp handles *recursive* copying by listing sub-directories; this is not as feasible with a http-based source since things like 'fancy-indexing' might not be enabled on the web-server (for all sub-locations recursively too), and even if it is enabled it will mean tedious parsing of the html served to glean the sub-directories etc. Hence the idea is to support an input file (via a -f option) which contains a list of the http-based urls which represent multiple source files.

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