Github user asdf2014 commented on the issue:
https://github.com/apache/zookeeper/pull/262
Hi, @phunt . Indeed, the `FastLeaderElection` algorithm is very efficient.
Most of the leader election situation would finished in hundreds milliseconds.
However, some real-time stream frameworks suck as Apache Kafka and Apache Storm
etc, could make lots of pressures into Zookeeper cluster when they carry on too
many business data or processing logic. So maybe, the leader election will be
triggered very frequently and the process becomes time consuming.
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