Book Image

Apache Kafka 1.0 Cookbook

By : Alexey Zinoviev, Raúl Estrada
Book Image

Apache Kafka 1.0 Cookbook

By: Alexey Zinoviev, Raúl Estrada

Overview of this book

Apache Kafka provides a unified, high-throughput, low-latency platform to handle real-time data feeds. This book will show you how to use Kafka efficiently, and contains practical solutions to the common problems that developers and administrators usually face while working with it. This practical guide contains easy-to-follow recipes to help you set up, configure, and use Apache Kafka in the best possible manner. You will use Apache Kafka Consumers and Producers to build effective real-time streaming applications. The book covers the recently released Kafka version 1.0, the Confluent Platform and Kafka Streams. The programming aspect covered in the book will teach you how to perform important tasks such as message validation, enrichment and composition.Recipes focusing on optimizing the performance of your Kafka cluster, and integrate Kafka with a variety of third-party tools such as Apache Hadoop, Apache Spark, and Elasticsearch will help ease your day to day collaboration with Kafka greatly. Finally, we cover tasks related to monitoring and securing your Apache Kafka cluster using tools such as Ganglia and Graphite. If you're looking to become the go-to person in your organization when it comes to working with Apache Kafka, this book is the only resource you need to have.
Table of Contents (18 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Dedication
Preface

Implementing a graceful shutdown


In production, you may experience an abrupt shutdown caused by inevitable circumstances; for example, a power outage or a sudden machine reboot. But more often, there are planned shutdowns for machine maintenance or configuration changes. In these situations, the smooth shutdown of a node in the cluster is desirable, maintaining the cluster up and running without data loss.

Getting ready

For this recipe, Kafka must be installed.

How to do it...

  1. First, edit the Kafka configuration file in config/server.properties and add the following line:
controlled.shutdown.enable=true
  1. Start all the nodes
  2. With all the cluster nodes running, shut down one broker with the following command in the Kafka installation directory:
$ bin/kafka-server-stop.sh

How it works...

If the setting for a controlled shutdown is enabled, it ensures that a server shutdown happens properly as follows:

  • It writes all the logs to disk so that there are no issues with logs when you restart the broker
  • If this...