anchor.diff:  2017-09-21 07:15:55,440 - INFO  [main:NIOServerCnxnFactory@89] - binding to port 0.0.0.0/0.0.0.0:2181
   ----
   
  -The last line is important and reports that Zookeeper is ready and listening on port 2181. The terminal will continue to show additional output as Zookeeper generates it.
  +The last line is important and reports that ZooKeeper is ready and listening on port 2181. The terminal will continue to show additional output as ZooKeeper generates it.
   
   [[start-kafka]]
   === Start Kafka
  
positive.code: 
  == Starting simple with Debezium
  
  For simple evaluation and experimentation, this tutorial will walk you through starting a single instance of each service in a separate container on your local machine. Zookeeper and Kafka both store data locally inside the container, and normal usage requires mounting directories on the host machines as volumes so that when the containers stop the persisted data will remain. We're skipping that in this tutorial, although the documentation for our https://hub.docker.com/r/debezium/[Docker images] describes how to do that. This means that when a container is removed, all persisted data will be lost. That's actually ideal for our experiment, since nothing will be left on your computer when we're finished, and you can run this experiment many times without having to clean anything up in between.
  
  Running multiple services locally can be confusing, so we're going to use a separate terminal to run each container in the foreground. This way all of the output of a container will be displayed in the terminal used to run it.
  
  
negative.code: 
  == Running Debezium with Docker
  
  Running Debezium involves three major services: http://zookeeper.apache.org[ZooKeeper], Kafka, and Debezium's connector service. This tutorial walks you through starting a single instance of these services using http://docker.com[Docker] and https://hub.docker.com/u/debezium/[Debezium's Docker images]. Production environments, on the other hand, require running multiple instances of each service to provide the performance, reliability, replication, and fault tolerance. This can be done with a platform like https://www.openshift.com[OpenShift] and http://kubernetes.io[Kubernetes] that manages multiple Docker containers running on multiple hosts and machines, but often you'll want to link:/docs/install/[install on dedicated hardware].
  
  == Starting Docker
  
  