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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4927) Part files on the output filesystem are created irrespective of whether the corresponding task has anything to write there
Date Mon, 22 Dec 2008 06:00:44 GMT
Part files on the output filesystem are created irrespective of whether the corresponding task
has anything to write there
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                 Key: HADOOP-4927
                 URL: https://issues.apache.org/jira/browse/HADOOP-4927
             Project: Hadoop Core
          Issue Type: Bug
            Reporter: Devaraj Das
             Fix For: 0.20.0


When OutputFormat.getRecordWriter is invoked, a part file is created on the output filesystem.
But the created RecordWriter is not used until the OutputCollector.collect call is made by
the task (user's code). This results in empty part files even if the OutputCollector.collect
is never invoked by the corresponding tasks.

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