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From "Kevin Wilfong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-4090) Use of hive.exec.script.allow.partial.consumption can produce partial results
Date Wed, 27 Feb 2013 23:09:12 GMT
Kevin Wilfong created HIVE-4090:
-----------------------------------

             Summary: Use of hive.exec.script.allow.partial.consumption can produce partial
results
                 Key: HIVE-4090
                 URL: https://issues.apache.org/jira/browse/HIVE-4090
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.11.0
            Reporter: Kevin Wilfong


When users execute use a transform script with the config hive.exec.script.allow.partial.consumption
set to true, it may produce partial results.

When this config is set the script may close it's input pipe before its parent operator has
finished passing it rows.  In the catch block for this exception, the setDone method is called
marking the operator as done.  However, there's a separate thread running to process rows
passed from the script back to Hive via stdout.  If this thread is not done processing rows,
any rows it forwards after the setDone method is called will not be passed to its children.
 This leads to partial results.

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