Abhay Kulkarni created RANGER-3280:
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             Summary: Ensure that the policy/tag versions gets correctly 
updated for every change to service/policy/tag
                 Key: RANGER-3280
                 URL: https://issues.apache.org/jira/browse/RANGER-3280
             Project: Ranger
          Issue Type: Bug
          Components: Ranger
            Reporter: Abhay Kulkarni
            Assignee: Abhay Kulkarni


Every change to service/policy/tag should be recorded by incrementing the 
policy-version (or tag-version) for the service. Policy-version(or tag-version) 
is updated in a separate transaction after the original change that caused the 
version change has been committed.  This opens up a small window where the 
policy-version may be overwritten when multiple such transactions are 
concurrently active, leading to some 'lost' updates.



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