[GitHub] [helix] pkuwm commented on issue #526: Need a better way to verify (wait) if the partition assignment converged or not.

[GitBox <gi...@apache.org>]

pkuwm commented on issue #526: Need a better way to verify (wait) if the partition assignment converged or not.
URL: https://github.com/apache/helix/issues/526#issuecomment-614966963
 
 
   Note down an idea: verifier listens on a Znode, when controller completes calculation, it sends a message or updates the Znode so verifier knows controllers completes calculation.
   
   @jiajunwang's concern: 
   About why it's still not a complete idea, consider the following scenario:
   event A processed in controller
   test case trigger some changes
   controller notify for event A processed
   test case proceed prematurely (event B has not been processed yet)
   
   Maybe we can create one Znode for each event, and verifier needs to check if the message/znode data is what it's looking for to proceed?

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