Github user clockfly commented on the pull request:
https://github.com/apache/storm/pull/295#issuecomment-61634029
To make the whole topology responsive, the spout need to stay active to
pull data frequently from acker or system tick.
When setting "topology.sleep.spout.wait.strategy.time.ms" to 1 ms, it
should be good enough, the system load is relatively small.
What is the motivation to make it increasing?
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