[jira] [Created] (RANGER-3045) Admin UI 2.1 user search performance degradation

["Daniil (Jira)" <ji...@apache.org>]

Daniil created RANGER-3045:
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             Summary: Admin UI 2.1 user search performance degradation
                 Key: RANGER-3045
                 URL: https://issues.apache.org/jira/browse/RANGER-3045
             Project: Ranger
          Issue Type: Bug
          Components: admin
    Affects Versions: 2.1.0
         Environment: Ranger 2.1.0 or 2.1.1-snapshot
Hosting VM: 4 cpu, 16 gb ram
Java params: -Xmx7g -Xms1g
Database located on the dedicated host
            Reporter: Daniil


Hello.
I see huge performance degradation in 2.1 in admin UI regarding user search.
When I go to the usertab or trying to add users to policies, interface just hangs for some time (up to couple minutes).

!image-2020-10-19-10-41-26-501.png!

and at the same time one of the CPU cores consumes up to 100%:

!image-2020-10-19-10-33-03-264.png!

Before I've build Ranger based on 454537a95494477312b592256cd38878d004a167 commit, and it worked just fine on more than 10k synced LDAP users. 
Now I'm experiencing problems even on much smaller number of entities, using the same hardware configuration.

Please advice how to proceed. I would like to try features of new versions. Thank you.



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