WARNING: Using default NODE_ID=1, which is valid only for non-clustered installations. Starting in ZooKeeper mode using NODE_ID=1. Using ZOOKEEPER_CONNECT=172.17.0.2:2181 Using configuration config/server.properties. Using KAFKA_LISTENERS=PLAINTEXT://172.17.0.4:9092 and KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://172.17.0.4:9092 Listing topics...