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  • Book Overview & Buying JMeter Cookbook
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JMeter Cookbook

JMeter Cookbook

By : Erinle
3.6 (8)
Buy this Book
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JMeter Cookbook

JMeter Cookbook

3.6 (8)
By: Erinle
Buy this Book

Overview of this book

This book is great for you if you are a developer, quality assurance engineer, tester, or test manager who is looking to get a firmer grasp of elementary, deep, and advanced testing concepts using Apache JMeter. It’s assumed you have access to a computer and an Internet connection. No prior testing or programming experience is required, but would be helpful.
Table of Contents (11 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. JMeter Fundamentals
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1. JMeter Fundamentals
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Introduction
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Executing a test script
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Recording a script via HTTP(S) Test Script Recorder
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Recording scripts via the Chrome browser extension
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Converting HTTP web archives (HAR) to JMeter test plans
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Viewing and analyzing test results
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Feeding data into a script
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Using timers
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Managing HTTP user sessions
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Testing Single Page Applications (SPAs)
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Testing AJAX-centric applications
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2. Handling Responses
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2. Handling Responses
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Introduction
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Using Regular Expression Extractor
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Using Regular Expression Tester
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Using CSS/jQuery Extractor
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Using XPath Extractor
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Dealing with file downloads
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Handling XML responses
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Handling JSON responses
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Handling HTML responses
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Using Response Assertion
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Using Duration Assertion
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Uploading files with your scripts
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3. Building Robust Test Plans with Controllers
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3. Building Robust Test Plans with Controllers
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Introduction
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Using Transaction Controller in test plans
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Using Loop Controller in test plans
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Leveraging ForEach Controller in test plans
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Using Interleave and Random Controller in test plans
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Using Runtime Controller in test plans
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4. Testing Services
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4. Testing Services
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Introduction
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Testing REST web services
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Testing SOAP web services
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Testing FTP services
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Testing relational databases
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Testing NoSQL databases
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Testing JMS services
5
5. Diving into Distributed Testing
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5. Diving into Distributed Testing
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Introduction
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Testing applications with JMeter's master-slave setup
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Testing internal applications using JMeter and Vagrant
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Testing external facing applications using JMeter, Vagrant, and AWS
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Testing external facing applications using Flood.IO
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Testing external facing applications using BlazeMeter
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6. Extending JMeter
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6. Extending JMeter
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Introduction
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Using REST Sampler
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Using Ultimate Thread Group
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Using Throughput Shaping Timer
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Using Console Status Logger
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Using Dummy Sampler
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Developing custom JMeter plugins
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Testing WebSocket-enabled applications
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7. Building, Debugging, and Analyzing the Results of Test Plans
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7. Building, Debugging, and Analyzing the Results of Test Plans
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Introduction
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Using the View Results Tree listener
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Using the Aggregate Report listener
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Debugging with Debug Sampler
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Using Constant Throughput Timer
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Using the JSR223 postprocessor
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Analyzing Response Times Over Time
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Analyzing transactions per second
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Using User Defined Variables (UDV)
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8. Beyond the Basics
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8. Beyond the Basics
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Introduction
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Continuous Integration with JMeter
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Testing with different bandwidths
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Using the HTTP Cache Manager component
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Using script languages within test plans
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Writing Test scripts through Ruby DSL
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Understanding JMeter properties
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Monitoring servers while executing tests (using VisualVM)
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Monitoring servers while executing tests (using YourKit Profiler)
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Monitoring servers while executing tests (using New Relic)
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Performance tips to scale JMeter
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A. Installing the Supporting Software Needed for this Book
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A. Installing the Supporting Software Needed for this Book
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Introduction
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Installing JMeter
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Installing Java Development Kit (JDK)
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Installing JMeter plugins
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Installing Vagrant
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Installing VirtualBox
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Installing Maven
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Installing Git
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Obtaining AWS keys for EC2
10
Index
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Index

Monitoring servers while executing tests (using VisualVM)

When executing test scripts, it is important to monitor the server resources where the tested application is being hosted. Resources such as CPU, memory, thread count and thread pool, I/O resources, and so on are integral to the performance of an application. Monitoring these resources helps give crucial insights into where the bottlenecks lie in the tested application or hosted environment.

How to do it…

In this recipe, we will show you how to monitor application resources using VisualVM, a tool that comes bundled with standard JDK installation files. Perform the following steps:

  1. Install Maven, Git, and JDK 7 as described in the Appendix.

    Note

    The examples have been tested with JDK 7 only. At the time of writing this, they haven't been updated to work with JDK 8.

  2. Create a directory to keep the sample code. We will refer to this as CODE_SAMPLES.

  3. Open a terminal or DOS prompt and change the CODE_SAMPLES directory.

  4. Clone the application using...

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