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From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7205) Delegation token for KMS should only be got once if it already exists
Date Wed, 08 Oct 2014 03:50:34 GMT
Yi Liu created HDFS-7205:
----------------------------

             Summary: Delegation token for KMS should only be got once if it already exists
                 Key: HDFS-7205
                 URL: https://issues.apache.org/jira/browse/HDFS-7205
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: encryption
    Affects Versions: 2.6.0
            Reporter: Yi Liu
            Assignee: Yi Liu


When submit MapReduce job in security mode, we need to collect delegation tokens (i.e. delegation
token for NameNode, KMS).

{{addDelegationTokens}} may be invoked several times, currently dt for NN is got only once
if exists.  But  dt for KMS is got every time, we should fix this.



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