pkuwm opened a new issue #956: Stable tests in Helix Rest
URL: https://github.com/apache/helix/issues/956
 
 
   ```
   [ERROR] Failures:
   [ERROR]   TestClusterAccessor.testGetControllerLeadershipHistory:364 
expected:<true> but was:<false>
   [ERROR]   TestJobAccessor.testDeleteJob:206 ยป Helix Fail to stop the 
workflow/queue Test...
   [INFO]
   [ERROR] Tests run: 155, Failures: 2, Errors: 0, Skipped: 15
   [INFO]
   [INFO] 
------------------------------------------------------------------------
   [INFO] BUILD FAILURE
   [INFO] 
------------------------------------------------------------------------
   [INFO] Total time:  45.469 s
   [INFO] Finished at: 2020-04-16T13:45:24-07:00
   [INFO] 
------------------------------------------------------------------------
   ```
   In TestResourceAccessor, controllers are stopped and started. This affects 
later tests run after TestResourceAccessor.  The results are random for 
different people because the ordering of tests may be different. If 
TestResourceAccessor runs before other tests, the later tests are affected. The 
reason is once controller manager stops, it is disconnected. Even if controller 
manager is started again, manager does not reconnect.
   
   Potential solution: instead of stop controller managers, we can pause the 
cluster by disabling it.

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