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From "Aaron Kimball (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1469) Sqoop should disable speculative execution in export
Date Tue, 09 Feb 2010 01:33:27 GMT
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/streaming
            Reporter: Aaron Kimball
            Assignee: Aaron Kimball


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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