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From "Vinod Kumar Vavilapalli (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3352) Separate installation of mapreduce libraries from YARN_HOME
Date Fri, 04 Nov 2011 13:03:02 GMT
Separate installation of mapreduce libraries from YARN_HOME

                 Key: MAPREDUCE-3352
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3352
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Vinod Kumar Vavilapalli

Time and again, I am running into scenarios where I just want to fix bugs in mapreduce app,
replace the mapreduce libraries without bringing down YARN daemons and/or replacing the YARN
RM/NM installation.

Today, we have separate HADOOP_MAPRED_HOME and YARN_HOME, but the installation directory is
the same. We need to separate this.

We will need this eventually anyways, as MR is strictly a user-land library, just like PIG,
HIVE etc.

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