kafka-workshop

Exercise: Exploring Zookeeper

This exercise is to give you time to explore the very depths of a Kafka cluster, i.e. Zookeeper.

Zookeeper is used as a runtime configuration database by Kafka brokers given the following features:

• File system-like tree structure with znodes and optional metadata attached
• Ephemeral znodes

Duration: 30 mins

TIP Use bit.ly/kafka-exercise-admin-02 to access this exercise.

Procedure

1. Use zookeeper-shell to connect to the Zookeeper instance
   • ./bin/zookeeper-shell.sh :2181
2. Use help to learn about available commands
3. Use ls and get commands to explore the Kafka znodes
   • ls /brokers/ids
   • get /brokers/ids/0
   • get /controller

NOTE: zookeeper-shell comes with no support for command history and so consider the official Apache Zookeeper’s zkCli for a better command-line experience (and command history).

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