Find the bottleneck of your system
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This document discusses load and stress testing web applications using Apache JMeter. It provides an overview of identifying bottlenecks in a system, how HTTP requests and responses work, and how to use Apache JMeter to perform load and stress tests. Key features of JMeter like installing it, creating test plans, running tests, and viewing results are described. The document also covers more advanced JMeter functions such as using variables, parsing responses, and running tests from the command line using Apache Ant.
Find the bottleneck of your system
- 1. Find the Bottleneck of Your System Load / Stress Test with JMeter StarNight
- 2. Who am I? 潘建宏 / Jian-Hong Pan (StarNight) About Me : http://about.me/StarNight 出沒在～ GitHub : starnight PTT : zack2004 plurk : StarNight Facebook : StarNight 目前繼續在種花店當個打雜園丁 ～
- 3. Outline ● The Bottleneck ● Web / HTTP(S) ○ Request / Response Header and Body ● Load / Stress Test ● Apache JMeter ○ Installation ○ UI Description ○ Test Plan ○ Read Result ○ Parsing and Variables
- 4. The Bottleneck ● The operation of a system is the cooperation between many parts. ○ Nodes(Termial, Server)：Clients, Server, DB ○ Connections(Communication) ● The whole system will reach the planned efficiency, only if each part meets the planned efficiency criteria. DB Server (Web AP) Clients Possible Bottleneck Possible Bottleneck Possible Bottleneck Possible Bottleneck Possible Bottleneck
- 5. Web / HTTP(S) ● It is the protocol between Client and Web Servers ○ W3C: HTTP Specifications and Drafts ○ IETF: RFC 2616 Hypertext Transfer Protocol / 1.1 ■ 4.2 Message Headers, 4.3 Message Body ■ 5.1.1 Method ■ 6.1.1 Status Code and Reason Phrase ● HTTPS: Use SSL certificate to encrypt HTTP Server (Web AP) Clients HTTP(S) Request HTTP(S) Response
- 6. HTTP Request Header & Body we can see Secured HTTP Request Header & Body
- 7. Even though the HTTP is encrypted, you still see the plain text in the browser
- 8. ● Composite of ○ Request-Line ■ Method sp Request-URI sp HTTP-Version ○ general-header | request-header | entity-header ○ message-body ● Method ○ OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT ● Request-URI ○ "*" | absoluteURI | abs_path | authority ● Content-Type HTTP Request (5)
- 9. HTTP Response (6) ● Composite of ○ Status-Line ■ HTTP-Version sp Status-Code sp Reason-Phrase ○ general-header | response-header | entity-header ○ message-body ● Status Code and Reason Phrase ○ 1xx: Informational ○ 2xx: Success ○ 3xx: Redirection ○ 4xx: Client Error ○ 5xx: Server Error
- 10. Load / Stress Test ● Load Test ○ Load testing examines the entire environment and database, while measuring the response time. ● Stress Test ○ Stress testing focuses on identified transactions, pushing to a level so as to break transactions or systems. DB Server (Web AP) Clients Super Node HTTP(S) Request HTTP(S) Response probe probe probe Flow Generator
- 11. Apache JMeter ● Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions. ● http://jmeter.apache.org/ ● Apache License Version 2.0 ● Getting Started (User’s Manual) Open Source is Awesome!
- 12. Installation ● Download Page: ○ http://jmeter.apache.org/download_jmeter.cgi ● Requires Java 6 or later ● Excute bin/jmeter.sh or bin/jmeter.bat ● Using JMeter behind a proxy ○ Append the arguments “--proxyHost ProxyServer -- proxyPort ProxyPort” after the ApacheJMeter.jar command in bin/jmeter.sh or bin/jmeter.bat
- 13. UI Description Test Plan related: Thread, Query Script, Header ... Workbench to make Test Plan How to run the Test Plan Global User Defined Variables Start / Stop Test Clear Test Result
- 14. Test Plan - Thread Group
- 15. Test Plan - Test Script Recorder Browser JMeter Proxy Target Client X There are only HTTP requests and Response in the World Wide Web.
- 16. Open a browser which will go through this proxy
- 17. Test Plan - HTTP Request
- 18. Test Plan - HTTP Cookie Manager Cookie - Session IETF: RFC 6265 / 8.4
- 19. Test Plan - HTTP Request Defaults Variables Default Values
- 20. Test Plan: Many other scenarios ● How to use a CSV file with JMeter ○ Many usernames and paswwords for exmaple ● Upload and Download Scenarios with Apache JMeter ○ Upload files tests ● And so on ...
- 21. Test Plan - View Results Tree
- 22. Test Plan - Summary Report
- 23. Many other listeners ...
- 24. Run the Test Plan
- 25. Read Result - View Results Tree
- 26. Read Result - Summary Report
- 27. Parsing
- 28. Extract Variables (.*?) Variables will be URL_g1, URL_g2
- 30. Verify Variables
- 31. Apache Ant ● 5 Ways To Launch a JMeter Test without Using the JMeter GUI ● JMeter Ant Task ● To have a test report in HTML form ● One may need to add Ant into the enviroment variable PATH
- 32. Use JMeter Ant addon 1. Download Apache Ant and install it 2. Add Ant’s directory into PATH 3. Use the command line: a. cd Apache JMeters’s extras directory b. ant -Dtest=Test Plan’s File Name -Dtestpath=Path of the Test Plan’s File For example: I put the test.jmx on my desktop $ cd C:UsersjhpanDesktopapache-jmeter-2.13extras $ ant -Dtest=test -Dtestpath=C:UsersjhpanDesktop
- 34. Thank you ~
Editor's Notes
- #19: Session: IETF 6265 8.4. Session Identifiers