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From "Rick Curtis (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1765) TableGenerator doesn't properly utilize all keys when under heavy stress.
Date Thu, 12 Aug 2010 18:24:15 GMT
TableGenerator doesn't properly utilize all keys when under heavy stress.
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                 Key: OPENJPA-1765
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1765
             Project: OpenJPA
          Issue Type: Bug
          Components: jdbc
    Affects Versions: 2.0.0
            Reporter: Rick Curtis
            Assignee: Rick Curtis


TableJDBCSeq has a locking problem where multiple threads can run on top of each other resulting
in all keys not being used for a given sequence. 

While unit testing a fix I also uncovered another theoretical start up problem where multiple
threads can try to insert the same row into the DB resulting in a duplicate key exception.

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