Spout prematurely acks, even failed Bolt tuples
问题 I'm using the Python Storm library streamparse (which utilizes pystorm underneath). I've had problems calling a Spouts fail() method in the boilerplate wordcount project. According to the pystorm quickstart docs and numerous things I've read, calling fail(tuple) in a Bolt should elicit a failure in the originating Spout. However, even with the few modifications I've made, I always get a Spout ack() right when it leaves the Spout. Is this the correct behavior, or do I need to change a setting