Book Image

Java EE 8 High Performance

By : Romain Manni-Bucau
Book Image

Java EE 8 High Performance

By: Romain Manni-Bucau

Overview of this book

The ease with which we write applications has been increasing, but with this comes the need to address their performance. A balancing act between easily implementing complex applications and keeping their performance optimal is a present-day need. In this book, we explore how to achieve this crucial balance while developing and deploying applications with Java EE 8. The book starts by analyzing various Java EE specifications to identify those potentially affecting performance adversely. Then, we move on to monitoring techniques that enable us to identify performance bottlenecks and optimize performance metrics. Next, we look at techniques that help us achieve high performance: memory optimization, concurrency, multi-threading, scaling, and caching. We also look at fault tolerance solutions and the importance of logging. Lastly, you will learn to benchmark your application and also implement solutions for continuous performance evaluation. By the end of the book, you will have gained insights into various techniques and solutions that will help create high-performance applications in the Java EE 8 environment.
Table of Contents (12 chapters)


In a distributed system, it is very important to ensure that you know how to handle failures. Java EE applications being more and more connected to other systems, they face this challenge more and more, so it is important to know how you will deal with failover when it happens.

The first meaning of failover is, indeed, to fail over. It can be rephrased as the capability to switch to a backup system when the primary system fails. In Java EE applications, there are lots of places where this can be set up, but they are all related to external systems:

  • Databases: If a database connection fails, how to still handle the requests?
  • JMS: If a broker fails, what to do?
  • Other network API (such as SOAP or REST API): If the remote server is down, what to do?
  • WebSocket: If the target server closes the connection or fails, what to do?

In general, each time your application relies...