Github user dbahir commented on the pull request: https://github.com/apache/phoenix/commit/b5be8d85bfd05aeb3ea17b1c734eda06d914f516#commitcomment-18834022 My bad regarding the synchronization, you are correct. Did you get to look at the comment regarding the user login ? Can you allow another to login with a different principal? Would taht cause a security issue? If we create one driver(One) with user A and then create another driver(Two) with user B the info in the UGI now is that of user B. So there can be a situation where driver One will be using credentials of user B.
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