Github user HeartSaVioR commented on the pull request:
https://github.com/apache/storm/pull/532#issuecomment-110219954
@itaifrenkel
I see your point.
Spout can skip sending nextTuple to subprocess so that we can save
stdout/stdin traffic and Spout doesn't block or sleep and continue to handle
ack / fail.
Two points still exist,
1. When Spout can skip sending nextTuple?
2. Who is better to decide it? ShellSpout? Or subprocess?
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