you need zookeeper between old topology and new topology?? old topology --??watch nodeA --??zookeeper --?? new topology --?? change nodeA state--??watcher --??old topology stop pulling--??ok?? am I right??
------------------ Original ------------------ From: "Emmanuel"<[email protected]>; Date: 2015??3??17??(??????) ????3:05 To: "user"<[email protected]>; Subject: Updating a live topology Hello, Can someone explain to me how one would update a live topology? I assume one would run a new topology with the updated code, and switch off the old one, but how to make the transition in terms of the data flow? How to tell the topology to stop pulling data from the queue when the new topology is started? Or is there any guarantee that the stopped topology will finish processing the data it ingested before shutting down? I would be very grateful if someone could enlight me on this. Thanks Emmanuel
