Github user revans2 commented on the issue:
https://github.com/apache/zookeeper/pull/157
@rakeshadr If it makes you feel any better we have been running with an
older version of this patch in production for a while. We have used it as part
of a rolling upgrade at least 10 times in production where if it were not there
we would have had some very painful outages.
I have also manually tested it at least 50 times shooting the leader under
load (10,000 operations/second) on a 3.4 GB DB, watching it recover, and then
validating the integrity of the DB to be sure we didn't get any corruption.
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