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From "Omer Trajman (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1368) Vertica adapter doesn't use explicity transactions or report progress
Date Sun, 10 Jan 2010 01:05:54 GMT
Vertica adapter doesn't use explicity transactions or report progress
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                 Key: MAPREDUCE-1368
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1368
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 0.21.0
            Reporter: Omer Trajman
            Assignee: Omer Trajman
             Fix For: 0.21.0


The vertica adapter doesn't use explicit transactions, so speculative tasks can result in
duplicate loads.  The JDBC driver supports it so the fix is pretty minor. Also the JDBC driver
commits synchronously and the adapter needs to report progress even if it takes longer than
the timeout.

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