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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7092) Document the logic about Delegation Token is generated and used in both HA and non-HA setup
Date Fri, 19 Sep 2014 00:54:34 GMT
Jing Zhao created HDFS-7092:
-------------------------------

             Summary: Document the logic about Delegation Token is generated and used in both
HA and non-HA setup
                 Key: HDFS-7092
                 URL: https://issues.apache.org/jira/browse/HDFS-7092
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Jing Zhao


Currently DT's generation and usage have complicated logic in HA and non-HA setup. This includes
the DT's duplication logic in HA setup, its kind and address setup, its selection logic, etc.

In the meanwhile, users can utilize the RESTful API to get DT and use DT in non-hadoop clients.
It is hard to write correct code if the logic is not well understood. Thus we should provide
better documentation describing the DT logic. 



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