Github user kevinconaway commented on the issue:
https://github.com/apache/storm/pull/2370
I don't think consumers are parsing them directly. They _do_ get passed on
as is to the target time series reporting system so any dashboards that used
these metrics would "break" (or need to be updated).
If backwards compatibility is a concern here, my preference would just be
to send both formats, the old and the new, rather than add a feature toggle.
These particular metrics (kafkaPartition) are not as widely used / useful
as the kafkaOffset metrics so I wouldn't think it would be a large impact but
I'll defer to you on that.
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