Daryn Sharp created HADOOP-9852:
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Summary: UGI login user keytab and principal should not be static
Key: HADOOP-9852
URL: https://issues.apache.org/jira/browse/HADOOP-9852
Project: Hadoop Common
Issue Type: Sub-task
Components: security
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: Daryn Sharp
Assignee: Daryn Sharp
The static keytab and principal for the login user is problematic. The login
conf explicitly references these statics. As a result,
loginUserFromKeytabAndReturnUGI is unnecessarily synch'ed on the class to swap
out the login user's keytab and principal, login, then restore the
keytab/principal. This method's synch blocks further de-synching of other
methods.
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