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Performance Testing with JMeter 3 - Third Edition

By : Erinle

4.3 (3)

Buy this Book

Performance Testing with JMeter 3

4.3 (3)

By: Erinle

Buy this Book

Overview of this book

JMeter is a Java application designed to load and test performance for web application. JMeter extends to improve the functioning of various other static and dynamic resources. This book is a great starting point to learn about JMeter. It covers the new features introduced with JMeter 3 and enables you to dive deep into the new techniques needed for measuring your website performance. The book starts with the basics of performance testing and guides you through recording your first test scenario, before diving deeper into JMeter. You will also learn how to configure JMeter and browsers to help record test plans. Moving on, you will learn how to capture form submission in JMeter, dive into managing sessions with JMeter and see how to leverage some of the components provided by JMeter to handle web application HTTP sessions. You will also learn how JMeter can help monitor tests in real-time. Further, you will go in depth into distributed testing and see how to leverage the capabilities of JMeter to accomplish this. You will get acquainted with some tips and best practices with regard to performance testing. By the end of the book, you will have learned how to take full advantage of the real power behind Apache JMeter.

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

Performance Testing Fundamentals

The incident

The aftermath

Performance testing

Performance testing and tuning

JMeter to the rescue

Up and running with JMeter

Tracking errors during test execution

Configuring JMeter

Summary

Recording Your First Test

Configuring the JMeter HTTP(S) Test Script Recorder

Setting up your browser to use the proxy server

Anatomy of a JMeter test

Summary

Submitting Forms

Capturing simple forms

Summary

Managing Sessions

Managing sessions with cookies

Managing sessions with URL rewriting

Summary

Monitoring Tests in Real-Time

Setting up InfluxDB

Setting up Grafana

Creating an InfluxDB database for our test plan

Putting it all together

Summary

Distributed Testing

Remote testing with JMeter

Leveraging the cloud for distributed testing

Using cloud services

Summary

Helpful Tips - Part 1

Dummy Sampler

Debug Sampler

JDBC Request Sampler

Using a MongoDB Sampler

Summary

Helpful Tips - Part 2

JMeter properties and variables

JMeter functions

Using timers in your test plan

The Regular Expression tester

The JSON Path Extractor element

Handling RESTful web services

Working with the reporting dashboard

Summary

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Setting up InfluxDB

InfluxDB is a time-series data store for storing data points of events over a time period. It is fast, reliable, scalable, and more importantly, free to use. It also has an extension for JMeter, making it an ideal fit for our use case in this chapter.

InfluxDB is easy to set up and the company's website--https://www.influxdata.com/--has ample installation instructions for various platforms. We have highlighted a few of the most encountered operating systems here. Ensure that you check the mentioned link for the most up-to-date instructions, or if instructions for your target operating system are not captured here.

As of the time of writing, the latest version of InfluxDB is 1.2.4, and that is what we will be using for the rest of this chapter. The following is how InfluxDB can be installed on some of the commonly used operating systems: