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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4659) Confusing output when running "hadoop version" from one hadoop installation when HADOOP_HOME points to another
Date Fri, 14 Sep 2012 17:48:07 GMT
Sandy Ryza created MAPREDUCE-4659:
-------------------------------------

             Summary: Confusing output when running "hadoop version" from one hadoop installation
when HADOOP_HOME points to another
                 Key: MAPREDUCE-4659
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4659
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: client
    Affects Versions: 2.0.1-alpha
            Reporter: Sandy Ryza


Hadoop version X is downloaded to ~/hadoop-x, and Hadoop version Y is downloaded to ~/hadoop-y.
 HADOOP_HOME is set to hadoop-x.  A user running hadoop-y/bin/hadoop might expect to be running
the hadoop-y jars, but, because of HADOOP_HOME, will actually be running hadoop-x jars.

"hadoop version" could help clear this up a little by reporting the current HADOOP_HOME.

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