In this chapter, you learned in detail about the various configuration options of ZooKeeper that are an essential part of using and operating ZooKeeper. You also learned the various best practices of using ZooKeeper, followed by methods of monitoring and managing ZooKeeper servers in real time. Knowing the various knobs of ZooKeeper configuration is very important for production deployment and can help prevent many problems, which might be hard to debug later.
In the next chapter, you will learn about Curator, which is a high-level framework for Apache ZooKeeper. Curator is a set of wrapper libraries built on top of ZooKeeper with a lot of enhanced features and capabilities. Originally developed by Netflix, Curator is now an Apache project and is very popular among ZooKeeper users.