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From "Purvesh Patel (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6429) running M/R tasks under a security policy
Date Wed, 08 Jul 2015 18:01:05 GMT
Purvesh Patel created MAPREDUCE-6429:
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             Summary: running M/R tasks under a security policy
                 Key: MAPREDUCE-6429
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6429
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: mrv2
    Affects Versions: 2.5.0
            Reporter: Purvesh Patel
            Priority: Minor


When running M/R tasks under a security policy without the 'java.lang.reflect.ReflectPermission
suppressAccessChecks' granted to the user code, we are unable to instantiate new keys for
a WritableComparator. This patch wraps the WritableComparator#newKey in a doPrivileged block
handling non-public key constructors. Please see attached file.




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