Johan Gustavsson created HADOOP-15477:
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             Summary: Make unjar in RunJar overrideable
                 Key: HADOOP-15477
                 URL: https://issues.apache.org/jira/browse/HADOOP-15477
             Project: Hadoop Common
          Issue Type: Improvement
    Affects Versions: 3.0.2, 2.7.6, 2.9.1, 2.8.3
            Reporter: Johan Gustavsson


Currently Hadoop's RunJar will unjar the jar provided and look for any jars 
inside and add them to the classpath. Since most deployments doesn't use jar in 
jar, but rather uberjars this could be rather time consuming at times and can 
cause issues related to over consumptionĀ of inodes, for something that is in 
many cases is not used.

For that purpose there should be an env variable to disable this behavior.



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