Github user merlimat commented on the issue:
https://github.com/apache/bookkeeper/pull/141
@jvrao sorry for merging this quickly, should have waited for more
feedback.
The change here is to interrupt the Bookie GC thread immediately when
shutting down. The interruption only happens if that thread is waiting on
_something_. For the GC thread that means waiting on ZK reads.
I don't see any problem in shutting down that thread quickly, because the
GC anyway picks it up again after restart.
The other part is waiting until the thread is done doing its work. That we
are not doing even today, given that bookie GC can take minutes or hours.
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