Stephen Fritz created HDFS-4789:
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             Summary: redirectToRandomDataNode tries to get a delegation token 
without verifying security is enabled
                 Key: HDFS-4789
                 URL: https://issues.apache.org/jira/browse/HDFS-4789
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Stephen Fritz
            Priority: Minor


Saw a warning message stating "trying to get DT with no secret manager running".

The isAllowedDelegationTokenOp() check call is questionably faulty, as per 
https://issues.apache.org/jira/browse/HADOOP-9461. Since HADOOP-9461 is 
potentially incompatible, I'm adding this minor check here to limit spurious / 
scary warnings



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