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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-7374) hadoop-config.sh shouldn't add tools.jar to the classpath
Date Thu, 09 Jun 2011 21:57:59 GMT
hadoop-config.sh shouldn't add tools.jar to the classpath
---------------------------------------------------------

                 Key: HADOOP-7374
                 URL: https://issues.apache.org/jira/browse/HADOOP-7374
             Project: Hadoop Common
          Issue Type: Improvement
          Components: scripts
            Reporter: Eli Collins
            Assignee: Eli Collins


bin/hadoop-config.sh (and bin/rcc) add lib/tools.jar from JAVA_HOME to the classpath. This
has been there since the initial commit of bin/hadoop, but I don't think it's needed. *Executing*
Hadoop does not depend on tools.jar (or other libraries only available in the JDK, not the
JRE) so let's not automatically add it. Marking this as an incompatible change since a job
could potentially have relied on Hadoop adding tools.jar to the CLASSPATH automatically (though
such a job would not have run on a system that did not have JAVA_HOME point to a jdk). The
build of course still requires a JDK.

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