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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