Kai Zheng created HADOOP-9927:
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Summary: USER_KERBEROS_LOGIN in UGI should use Krb5LoginModule as
REQUIRED, instead of OPTIONAL
Key: HADOOP-9927
URL: https://issues.apache.org/jira/browse/HADOOP-9927
Project: Hadoop Common
Issue Type: Bug
Components: security
Reporter: Kai Zheng
Assignee: Kai Zheng
Krb5LoginModule should be used as a required login module in the JAAS chain for
user to login via ticket cache in secured/Kerberos deployment. It's probably a
work around to pass various unit tests, however it's obviously problematic and
should be fixed. It's possible when relevant UGI changes are ready and MiniKDC
can be employed to help with the tests with HADOOP-9893 being done.
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