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From "Aaron Kimball (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-972) distcp can timeout during rename operation to s3
Date Tue, 20 Oct 2009 17:57:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12767892#action_12767892
] 

Aaron Kimball commented on MAPREDUCE-972:
-----------------------------------------

bq. Will such a short-term fix suffice until the long-term can be addressed (0.22, probably)?
If so, then there's perhaps no in point considering a more complex interim solution.

Probably

bq. Should we associate this Jira issue with the short or long-term fix? If long, then we
might make it depend on a FileSystem API change, to support progress callbacks.

Why not both?


> 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-972.4.patch,
MAPREDUCE-972.5.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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