Github user revans2 commented on the pull request:
https://github.com/apache/storm/pull/986#issuecomment-169452092
CI seems to be failing with a trident kafka test hanging.
The code appears to provide a best effort replay, but that is neither at
least once nor at most once, so it is likely to cause issues for some
topologies that don't expect this a-typical behavior. I am not an expert on
the kafka API, but it looks like auto.commit.enable is inherently incompatible
with what storm wants from a well behaved spout.
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