Github user revans2 commented on the pull request:
https://github.com/apache/incubator-storm/pull/84#issuecomment-41399424
I agree that a PB impl would be superior to the JSON, but I am thinking
about my customers who have legacy shell bolts already. I can see some of them
wanting to keep what already works in place and just add new bolts with the new
protocol until they find the time to go back and upgrade.
I am fine with having the change be done in a follow up JIRA.
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