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