Kai Zheng created HADOOP-9947:
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Summary: Remove Kerberos specific login implementation out of UGI
into separate class
Key: HADOOP-9947
URL: https://issues.apache.org/jira/browse/HADOOP-9947
Project: Hadoop Common
Issue Type: Improvement
Components: security
Reporter: Kai Zheng
Assignee: Kai Zheng
As part of effort in HADOOP-9926 and HADOOP-9797, this particularly focuses on
removing Kerberos specific login implementations from UGI into separate classes
based on the new login framework. In this way, keytab login, ticket cache login
and etc will be taken care of in much modular approach, meanwhile it will
simplify the UGI class greatly. As good side effect of it, this change will
also get rid of the relevant statics like keytab, principal etc in UGI as such
variables will be maintained in separate class. The change should be
compatible, it refactors and improves the implementation, keeping the public
API.
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