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From "Nicholas Telford (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7269) S3 Native should allow customizable file meta-data (headers)
Date Fri, 13 May 2011 12:54:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13033012#comment-13033012
] 

Nicholas Telford commented on HADOOP-7269:
------------------------------------------

RE: QA analysis - The findbugs issue is about FsShell.DelayedExceptionThrowing, which my patch
hasn't affected at all. Since it's abstract and I can't find anything that uses it, I think
that's another issue altogether.

The 2 additional compiler warnings - I can't find them anywhere. If anyone can suggest an
effective way to locate these, I'm all ears.

> S3 Native should allow customizable file meta-data (headers)
> ------------------------------------------------------------
>
>                 Key: HADOOP-7269
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7269
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/s3
>            Reporter: Nicholas Telford
>            Assignee: Nicholas Telford
>            Priority: Minor
>         Attachments: HADOOP-7269-S3-metadata-001.diff, HADOOP-7269-S3-metadata-002.diff
>
>
> The S3 Native FileSystem currently writes all files with a set of default headers:
>  * Content-Type: binary/octet-stream
>  * Content-Length: <computed from object size>
>  * Content-MD5: <computed from object data>
> This is a good start, however many applications would benefit from the ability to customize
(for example) the Content-Type and Expires headers for the file. Ideally the implementation
should be abstract enough to customize all of the available S3 headers and provide a facility
for other FileSystems to specify optional file metadata.

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