Better error messages for RPC clients when authentication fails
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Key: HADOOP-6589
URL: https://issues.apache.org/jira/browse/HADOOP-6589
Project: Hadoop Common
Issue Type: Improvement
Reporter: Kan Zhang
Assignee: Kan Zhang
Currently when authentication fails, RPC server simply closes the connection.
Sending certain error messages back to the client may help user debug the
problem. Of course, those error messages that are sent back shouldn't
compromise system security.
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