Github user revans2 commented on the issue: https://github.com/apache/storm/pull/2203 @ptgoetz I think that is a good start. Not sure if users would be upset that their bolt B.1 now looks like B_1. We might have issues though if someone has both a B.1 bolt and a B_1 bolt. It might serve them right for doing something so dumb, but could end up being a really painful situation to try and clean up. I would rather have us look into restricting names for bolts, spouts, and streams. We could just start out with a warning saying metrics might be messed up if you violate this, and later it becomes an error.
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