THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!

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DFS implements posix-like user/group based access control. See http://hadoop.apache.org/common/docs/r0.20.2/hdfs_permissions_guide.html^{Image Removed}

Access control in HBase

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Hive's authorization is well documented in below links: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Authorization^{Image Removed}https://issues.apache.org/jira/browse/HIVE-78^{Image Removed}