Github user nathanmarz commented on the pull request:
https://github.com/apache/storm/pull/429#issuecomment-74036235
I retract my earlier -1. It was mentioned that this enables backpressure
for unacked topologies. Is this the case? If so, this is a great new feature of
Storm and there should be tests added testing this behavior. Namely, it should
test that:
- Spouts stop emitting when all buffers fill up
- Topology recovers on worker death and only a subset of messages are
dropped in that case
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