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From "Christian Kunz (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1335) C++ reducers under hadoop-pipes are not started when there are no key-value pairs to be reduced
Date Mon, 07 May 2007 19:21:15 GMT
C++ reducers under hadoop-pipes are not started when there are no key-value pairs to be reduced
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                 Key: HADOOP-1335
                 URL: https://issues.apache.org/jira/browse/HADOOP-1335
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.12.3
            Reporter: Christian Kunz


Probably originally thought as a feature, Hadoop-Pipes does not start  a C++ reducer application
when there are no key-values to be processed. Unfortunately, this does not allow to have certain
common tasks performed by every reducer independent of key-value pairs. This is a requirement
for our applications.

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