Github user maoling commented on the issue:
https://github.com/apache/zookeeper/pull/530
@timothyjward
Some inspirations can be found at the
[old-patch](https://issues.apache.org/jira/secure/attachment/12822755/ZOOKEEPER-2474-01.patch).
This patch LGTM and I had tested it. ping @anmolnar ---
