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Posted to mapreduce-issues@hadoop.apache.org by "Purvesh Patel (JIRA)" <ji...@apache.org> on 2015/07/08 20:01:05 UTC
[jira] [Created] (MAPREDUCE-6429) running M/R tasks under a
security policy
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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