[jira] [Created] (NIFI-9751) Poll as needed during system-tests to ensure expected server state

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

Paul Grey created NIFI-9751:
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             Summary: Poll as needed during system-tests to ensure expected server state
                 Key: NIFI-9751
                 URL: https://issues.apache.org/jira/browse/NIFI-9751
             Project: Apache NiFi
          Issue Type: Improvement
            Reporter: Paul Grey
            Assignee: Paul Grey


Certain system tests fail intermittently due to timing issues.  

One common problem observed involved the asynchronous nature of component updates.  A component was updated and a command immediately followed.  Under some conditions (github system-test workflow), command B was received before command A had been fully processed.

Another issue was that polling was sometimes needed after an API call to verify that the state change occurred.  A component "Stop", for example, might usually be processed immediately, supplying the expected state change in the API call response.  Occasionally, this might not occur, thus requiring polling to verify the state change.




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