https://www.cloudera.com/blog/technical/hardening-apache-zookeeper-security-sasl-quorum-peer-mutual-authentication-and-authorization.html
In this blog post, we will first review how ZooKeeper servers work together, and clarify the concepts such as quorum, leader election, and SASL which will help...
apache zookeepermutual authenticationhardeningsecuritysasl