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Date: Thu, 19 May 2011 08:26:47 +0000 (UTC)
From: "Suresh Srinivas (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HADOOP-7269) S3 Native should allow
 customizable file meta-data (headers)
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    [ https://issues.apache.org/jira/browse/HADOOP-7269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13036062#comment-13036062 ] 

Suresh Srinivas commented on HADOOP-7269:
-----------------------------------------

> Todd has said - Would it make sense to add these functions directly to the S3 filesystems but not to the overall API?
I still see FileSystem.java change in the new patch.

> 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, HADOOP-7269-S3-metadata-003.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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