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Posted to hdfs-dev@hadoop.apache.org by "Yi Liu (JIRA)" <ji...@apache.org> on 2014/10/08 05:50:34 UTC

[jira] [Created] (HDFS-7205) Delegation token for KMS should only be got once if it already exists

Yi Liu created HDFS-7205:
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             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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