Steve Loughran created HDFS-9732:
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             Summary: DelegationTokenIdentifier.toString() to include 
superclass .toString() data
                 Key: HDFS-9732
                 URL: https://issues.apache.org/jira/browse/HDFS-9732
             Project: Hadoop HDFS
          Issue Type: Improvement
    Affects Versions: 2.7.2
            Reporter: Steve Loughran


HDFS {{DelegationTokenIdentifier.toString()}} adds some diagnostics info, 
owner, sequence number. But its superclass,  
{{AbstractDelegationTokenIdentifier}} contains a lot more information, 
including token issue and expiry times.

Because  {{DelegationTokenIdentifier.toString()}} doesn't include this data,
information that is potentially useful for kerberos diagnostics is lost.



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