Github user lvfangmin commented on the issue:
https://github.com/apache/zookeeper/pull/580
@anmolnar If I understand correctly, @eolivelli's work is more about making
it easier to export ZooKeeper's internal metric to external systems, while FB
is focusing on adding a lot more useful new metrics, so they don't conflict
with each other that much.
And even we need to change something to adapt the new metric framework it
should be trivial.---
