Make Hadoop authentication filter display some content when authentication fails
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Key: HADOOP-7617
URL: https://issues.apache.org/jira/browse/HADOOP-7617
Project: Hadoop Common
Issue Type: Improvement
Components: security
Affects Versions: 0.24.0
Reporter: Aaron T. Myers
Fix For: 0.24.0
Currently if one enables the built-in SPNEGO authentication filter on Hadoop
and authentication fails, a 401 is returned with a blank page. We should
respond with some, potentially customizable, content which says why the failure
occurred and what the user might need to do to fix it.
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