[jira] [Created] (HIVE-21499) should not remove the function if create command failed with AlreadyExistsException

["Rajkumar Singh (JIRA)" <ji...@apache.org>]

Rajkumar Singh created HIVE-21499:
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             Summary: should not remove the function if create command failed with AlreadyExistsException
                 Key: HIVE-21499
                 URL: https://issues.apache.org/jira/browse/HIVE-21499
             Project: Hive
          Issue Type: Bug
          Components: Hive
    Affects Versions: 3.1.0
         Environment: Hive-3.1
            Reporter: Rajkumar Singh


As a part of HIVE-20953 we are removing the function if creation for same failed with any reason, this will yield into the following situation.
1. create function failed since function already exists
2. on #1 failure hive will clear the permanent function from the registry
3. this function will be of no use until hiveserver2 restarted.



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