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From "Aaron Kimball (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1469) Sqoop should disable speculative execution in export
Date Tue, 09 Feb 2010 01:35:27 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron Kimball updated MAPREDUCE-1469:
-------------------------------------

    Attachment: MAPREDUCE-1469.patch

Patch to address this issue. No new tests required.

> Sqoop should disable speculative execution in export
> ----------------------------------------------------
>
>                 Key: MAPREDUCE-1469
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1469
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/sqoop
>            Reporter: Aaron Kimball
>            Assignee: Aaron Kimball
>         Attachments: MAPREDUCE-1469.patch
>
>
> Concurrent writers of the same output shard may cause the database to try to insert duplicate
primary keys concurrently. Not a good situation. Speculative execution should be forced off
for this operation.

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