Zookeeper used for synchronisation and coordination of the services within distributed systems on the Microservice Architecture. It helps the system to be robust over fault tolerance and highly resilient with its key features such as leader election, failover, and recovery. It's easy to implement as it's built on top of Java. Review collected by and hosted on G2.com.

It is limited in handling the cross clusters and it's not highly scalable. Also, the main problem is it's having many dependencies which will be hard to maintain for the client service. Review collected by and hosted on G2.com.