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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-972) distcp can timeout during rename operation to s3
Date Thu, 24 Sep 2009 16:31:16 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12759165#action_12759165
] 

Tom White commented on MAPREDUCE-972:
-------------------------------------

Sorry to come late to this, but I wonder if the S3 rename problem could be solved more generally
(not just in the context of distcp) using the approach outlined in HADOOP-5814. I think a
lot of the code in your patch could be used.

> distcp can timeout during rename operation to s3
> ------------------------------------------------
>
>                 Key: MAPREDUCE-972
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-972
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: distcp
>    Affects Versions: 0.20.1
>            Reporter: Aaron Kimball
>            Assignee: Aaron Kimball
>         Attachments: MAPREDUCE-972.2.patch, MAPREDUCE-972.3.patch, MAPREDUCE-972.patch
>
>
> rename() in S3 is implemented as copy + delete. The S3 copy operation can perform very
slowly, which may cause task timeout.

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