Github user jaltekruse commented on the pull request:
https://github.com/apache/drill/pull/495#issuecomment-216937718
We currently use multiple drillbits in the same JVM process for our unit
tests, won't this cause them to conflict with one another? I don't know if
production use cases try to run multiple Drillbits in a single JVM, but even if
this isn't a use case, a stateful API like the metrics registry seems like the
wrong thing to move more towards static shared API. While I know it is
currently static, I think the idea with these methods you were deprecating is
that we would try to move to not be accessing anything static.
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