Daryn Sharp created HADOOP-8965:
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             Summary: Allow client to specify internal authentication
                 Key: HADOOP-8965
                 URL: https://issues.apache.org/jira/browse/HADOOP-8965
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: ipc
    Affects Versions: 2.0.0-alpha, 0.23.0, 1.0.0, 3.0.0
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp


The RPC client currently uses a token if present, else it falls back to 
authentication.  This creates an ambiguity in the client if SIMPLE auth is 
allowed to use tokens.  A task will continue to run if the task loses its 
tokens because it will fallback to SIMPLE auth - this would be a bug.  There 
should be a means to specify that tasks must use tokens to avoid the ambiguity.

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