Zookeeper and Consul have very different scopes and therefore architectures. Consul servers are very much like Zookeeper: an odd number of nodes running a conse

Zookeeper and Consul have very different scopes and therefore architectures. Consul servers are very much like Zookeeper: an odd number of nodes running a consensus protocol to provide a consistent API to a key/value store. However, Consul builds tons more on top of the servers. Consul has a first class notion of services and health checks. It has agents that run on every node to register services, perform health checks, and provide service discovery to local apps via HTTP or DNS. For every Consul feature there is probably a similar library or tool to do the same thing with Zookeeper. Consul just chose to focus on the service discovery problem and address it as a first class feature of the project. Full disclosure: I work for HashiCorp, but not on Consul.