Github user enixon commented on the issue:
https://github.com/apache/zookeeper/pull/669
@eolivelli , good find with EPoll. :)
When @ivmaykov first mentioned using EPoll to me as a potential
optimization, I recommended leaving it for later so we would do the reviewers a
favor and keep the complexity of this pull request relatively low. We do think
it's the right implementation to use here, the only question is where/when to
make that contribution.---
