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Date: Wed, 8 Jul 2015 18:01:05 +0000 (UTC)
From: "Purvesh Patel (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Message-ID: <JIRA.12843587.1436378423000.132963.1436378465427@Atlassian.JIRA>
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Subject: [jira] [Created] (MAPREDUCE-6429) running M/R tasks under a
 security policy
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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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