Github user breed commented on the issue:
https://github.com/apache/zookeeper/pull/262
i think it would be much better to extend ZOOKEEPER-1277 to more
transparently do the rollover without a full leader election.
the main issue i have with shortening the epoch size is that once the epoch
hits the maximum value the ensemble is stuck, nothing can proceed, so we really
need to keep the epoch size big enough that we would never hit that condition.
i don't think a 16-bit epoch satisfies that requirement.
---
