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https://issues.apache.org/jira/browse/MAPREDUCE-972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12767211#action_12767211
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Aaron Kimball commented on MAPREDUCE-972:
-----------------------------------------

Because there are other operations in the distcp job (e.g., the {{write()}} 
calls made during the actual upload) that should timeout far faster than once 
per thirty minutes in the event of an error. Using a single timeout value for 
all operations makes program execution overall considerably less efficient than 
it should be. Writes and renames in distcp can expect different running times; 
we should treat them this way.


> 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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