bdoyle0182 commented on issue #4632: Activation Persister Service URL: https://github.com/apache/openwhisk/pull/4632#issuecomment-591706386 More of a question about activation storage within the invoker and acknowledgment back to the controller. So in the current state it looks like the acknowledgment message on `completed*` that's read by the controller is sent async / simultaneously on the invoker with writing the activation to couchdb or whatever the persistence store. So is there then a race condition that `completed*` gets the acknowledgment, but the activation is then never written to couchdb in the case that producing to `completed*` finishes first, then the invoker goes down before the activation is written to couchdb and the activation is therefore lost. If my understanding is correct, would this new service solve this race condition because it seems like it's just swapping out the store operation in the invoker with a produce to kafka so the ack and new activation store produce to kafka would still be happening simultaneously.
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