[GitHub] [nifi] mcgilman commented on issue #3700: NIFI-6638: Empty multiple queues at once at different flow levels

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mcgilman commented on issue #3700: NIFI-6638: Empty multiple queues at once at different flow levels
URL: https://github.com/apache/nifi/pull/3700#issuecomment-531830167
 
 
   @VinceCastro Thanks for the PR! This capability is important and is something that many folks have requested. The proposed solution will perform an unbounded number of requests in order to clear all nested queues. I think we need to change this as this solution likely won't scale well with larger data flows.
   
   When the subject to the action is a process group, we should issue a single request to the backend with a flag indicating if the request is recursive. The clear queue action is an asynchronous request that the UI polls while the action completes.  When the action encompasses multiple queues we should be able to provide this context with the same asynchronous request/response model.

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