Brokers restart when ZK address changes

[Andrey Dyachkov <an...@gmail.com>]

Good day,
We are using AWS and it is quite common for us to terminate instances very
often, which introduces ip address change and requires to restart brokers
one by one.
Maybe there is a knowledge on how to avoid such restarts?

According to Confluent recommendations(on their web page), one should use
Elastic IPs, but it exposes our zookeeper to outside world.
From our side we looked at a zk Kafka client, which uses original zk
client, and it happens that there is an issue in the library and even
almost merged PR https://github.com/apache/zookeeper/pull/150, which will
solve the existing problem.

Thank you in advance!
-- 

With great enthusiasm,
Andrey