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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-574) want FileSystem implementation for Amazon S3
Date Mon, 27 Nov 2006 23:27:24 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-574?page=comments#action_12453742 ] 
Doug Cutting commented on HADOOP-574:

> DFSShell is really more general than DFS - perhaps it should be renamed FSShell?

Yes, it probably should, since it is largely generic.

> I need to see how the S3 implementation fits with HADOOP-571. Suggestions welcome.

What should the URI look like?  The scheme should be "s3", that's easy, but what about the
authority?  I think it makes sense to map bucket to host, access key id to user and secret
access key to password.  So that would give URIs like s3://id:secret@bucket/.  One's hadoop-site.xml
could then just specify the fs.default.name using this syntax.

Other than that, all you should need to do is define a few new FileSystem methods (getUri(),
initialize(URI, Configuration)) and a new configuration property (fs.s3.impl).

> want FileSystem implementation for Amazon S3
> --------------------------------------------
>                 Key: HADOOP-574
>                 URL: http://issues.apache.org/jira/browse/HADOOP-574
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: fs
>    Affects Versions: 0.9.0
>            Reporter: Doug Cutting
>         Attachments: dependencies.zip, HADOOP-574-v2.patch, HADOOP-574.patch
> An S3-based Hadoop FileSystem would make a great addition to Hadoop.
> It would facillitate use of Hadoop on Amazon's EC2 computing grid, as discussed here:
> http://www.mail-archive.com/hadoop-user@lucene.apache.org/msg00318.html
> This is related to HADOOP-571, which would make Hadoop's FileSystem considerably easier
to extend.

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