Xiaoyu Yao created HADOOP-17578:
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Summary: Improve UGI debug log to help troubleshoot TokenCache
related issues
Key: HADOOP-17578
URL: https://issues.apache.org/jira/browse/HADOOP-17578
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 3.2.0
Reporter: Xiaoyu Yao
Assignee: Xiaoyu Yao
We have seen some issues around TokenCache getDelegationToken failures even
though the UGI already has a valid token. The tricky part is the token map is
keyed by the canonical service name, which can be different from the actual
service field in the token, e.g. KMS token in HA case. The current UGI log
dumps all the tokens but not the keys of the token map. This ticket is opened
to include the complete token map information in the debug log.
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