JMeter – Step by Step for Beginners

Step 1 : Check java is installed on your system

               java -version

How to install java on windows 
https://youtu.be/FqpmH8MVO6A?list=PLhW3qG5bs-L_qj1L5hnHvJYeFpQ_g4UuU

How to install java on mac
https://youtu.be/NSvtis2fGlA?list=PLhW3qG5bs-L_qj1L5hnHvJYeFpQ_g4UuU

Step 2 : Download Jmeter from internet
               http://jmeter.apache.org/download_jmeter.cgi

Step 3 : Unzip and keep Jmeter folder at any location

Step 4 : Start Jmeter
             Windows - jmeter/bin - jmeter.bat
             
             | Mac - open terminal - jmeter/bin - sh jmeter.sh

Step 1 - Start Jmeter

Step 2 - Create a TestPlan

Step 3 - Create a Thread Group (Users)

Step 4 - Add a Sampler (Http)

Step 5 - Add Listeners

Step 6 - To Run the Test

Assertions =  checks on the Response

1. Response Assertion

2. Duration Assertion

3. Size Assertion

4. HTML Assertion

5. XML Assertion

6. XPATH Assertion

listener = elements that gather information about the performance test

used to view results / metrics of the test

latency = time to first byte

1. View Results in Table
2. View Results Tree
3. Aggregate Report
4. Graph Results
5. Summary Report
6. Simple Data Writer

1. Tools available for recording Jmeter ui test

    - Badboy software (Windows)
    - Blazemeter - Chrome Plugin - (Windows and Mac)

2. Record a Test

3. Export as Jmeter (.jmx) Script

4. Open the script in Jmeter

5. Add listeners

6. Run and validate

Step 1 - Add mysql jdbc jar to Jmeter lib folder | Restart Jmeter

       https://dev.mysql.com/downloads/connector/j/

Step 2 - Add Thread Group

Step 3 - Add JDBC Conn Config | Provide the details of our DB

JDBC URL Format

Useful Tip:

The general format for a JDBC URL for connecting to a MySQL server is as follows, with items in square brackets ([ ]) being optional:

jdbc:mysql://[host1][:port1][,[host2][:port2]]...[/[database]] »
[?propertyName1=propertyValue1[&propertyName2=propertyValue2]...]
Here is a simple example for a connection URL:

jdbc:mysql://localhost:3306/sakila?profileSQL=true

Ref : https://dev.mysql.com/doc/connector-j/5.1/en/connector-j-reference-configuration-properties.html

Step 4 - Add JDBC Request

Step 5 - Add Listeners

Step 6 - Run and validate

Why to execute non-gui mode ?

-gui  - consumes more resources / memory
-gui - not recommended for heavy load testing
-command line - can be integrated with other systems  -Jenkins/CI …

Step 1 : Goto command line - goto jmeter - bin

Step 2 : Command : 

jmeter -n -t (location of your jmeter test script) -l (location of the result file)
   
            -n - non gui mode
            -t  - location of jmeter script
            -l  - location of result file

jmeter -h  - to get help on jmeter commands 

jmeter -?  - to get information on jmeter command options

Step 1 : Add a FTP Request Sampler

Step 2 : Add FTP connection parameters

https://www.swfwmd.state.fl.us/data/ftp/
Server: ftp.swfwmd.state.fl.us
User Name: Anonymous
(use your email address as password)

Step 3 : Test a FTP GET and validate (get file from ftp server to local system)

Step 4 : Test a FTP PUT and validate (transfer file from local to ftp server)

(FileZilla client is used in this demo for physical validation of file transfer.
You can use other FTP clients like WinSCP)

An Update:

JMeter ver 3.2 onwards -  SOAP/XML-RPC Request has been removed as part of Bug 60727. Use HTTP Request element as a replacement. 

See Building a WebService Test Plan http://jmeter.apache.org/usermanual/build-ws-test-plan.html

API = Application Programming Interface
example-
Restaurant -  table  — WAITER —  kitchen

real world example - makemytrip.com

WebServices - client  — API —  server

REST | SOAP

How to test REST API
————————————
Step 1 : Add HTTP Request Sampler
  OR
  Add SOAP/XML-RPC Request Sampler

Step 2 : Add REST API details

(http://openweathermap.org/appid)
api.openweathermap.org/data/2.5/forecast/city?id=524901&APPID=1111111111 

http://api.openweathermap.org/data/2.5/weather?q=NewDelhi&appid=5ad76b332e2fa27ea9859353e5fdd69d

api.openweathermap.org
/data/2.5/weather/
q=NewDelhi
appid=5ad76b332e2fa27ea9859353e5fdd69d

Step 3 : Run and Validate

How to test SOAP API
————————————

Step 1 : Add SOAP/XML-RPC Request Sampler

Step 2 : Add details of the Soap API Request
(http://www.webservicex.net/New/Home/ServiceDetail/56)

Step 3 : Run and Validate

to watch before this video : How to create a Database Test Plan

Step 1 : Add a Response Assertion

Step 2 : Add variable names in JDBC Request

  
Col1,Col2,Col3,Col4

Col1 Col2  Col3 Col4
===  ===   ===  ===
ID  Name  Age  Country
1  Raghav  30  India
2  Tom  40  New Zealand

Col4_2 = NewZealand
Col2_2 = Tom

Step 3 : In Response Assertion add Jmeter Variable and Pattern to Test

Step 4 : Add Listener Assertion Results

Step 5 : Run and validate

(This feature will work in jmeter 3.0 and later ver.)

Step 1 : Create Test Plan and save it (and close).

Step 2 : Open command line and change dir to jmeter/bin

Step 3 : Execute command:
  
  to create report at the end of the test
  —————————————————————
  jmeter -n -t “location of the jmeter script” -l “location of result file”
  -e -o “location of the output folder”

  create report from a standalone csv file
  ——————————————————————
  jmeter -g “location of csv file” -o “location of output folder”
  

Step 4 : Analyse HTML (Dashboard) Reports

Manage Plugins - Quick & Easy

Install new plugins
Remove old plugins
Upgrade existing plugins
Information on plugins

Step 1 : Download jmeter plugin manager jar and add to jmeter/lib/ext folder
   (Restart Jmeter)

Step 2 : Find Plugin Manager under options Menu

Step 1 : Add config element - CSV Data Set Config

Step 2 : Add details in CSV Data Set Config

Step 3 : Update value fields: ${variable_name}

Step 4 : Run and validate

functions : any method that can populate a field in any other element of a test plan

 syntax : ${__functionName}
                ${__functionName(var1, var2, …..)}

variable : container that can store a value which can be referenced by any other element within the thread. (local to a thread)
 syntax : ${variableName}

function - caseSensitive | camelCasing 

Functions:
—————
1. log  - ${__log(“message”)}
2. time - 
3. threadNum
4. intSum

Options - Jmeter Function Helper

This plugin is deprecated and should not be used. Use Concurrency Thread Group instead.
https://www.youtube.com/watch?v=_YsZn1VwZYY

What is a real-world performance test

Think Time - simulate actual user actions with timings/delays 

Pacing - controlled ramp-up and down of virtual users
      - control timing between iterations
     - achieve x iterations in y mins/sec

Step 1 - Add Plugin - Stepping Thread Group
Step 2 - Setup load with required settings
Step 3 - Run and validate

Purpose - to pause thread (v.user) for some time

   - to add delay between threads
   - to avoid over flooding the server and achieve real time          behaviour by pacing the load

 (to simulate v. user’s THINK TIME)

Constant Timer
Uniform Random Timer

Random Delay Max
Constant Delay Offset

formula:
0.X * Random Delay Max + Constant Delay Offset

X : 0-9

example:
0.X * 100 + 0

0 - 99 milli sec

(To upload files with different names to FTP)

Step 1 : add CSV Data Set Config

Step 2 : create a csv file and provide its location in CSV Data Set Config

Step 3 : parametrize FTP PUT request to take value from csv file

Step 4 : Run and Validate

Today we will learn:

HOW TO RUN A TEST FOR SPECIFIC DURATION 
Thread Group - Forever - Scheduler - Duration

HOW TO RUN PERFORMANCE TEST SEQUENTIALLY 
Test Plan - Run Thread Group Consecutively

HOW TO ADD WEBSITES SEQUENTIALLY TO A PERFORMANCE TEST
Thread Group - Forever - Scheduler - Duration + Startup Delay
_______________________________________________

HOW TO RUN A TEST FOR SPECIFIC DURATION 
Thread Group - Forever - Scheduler - Duration

Step 1 : Thread Group - make loop count = forever

Step 2 : Select Scheduler checkbox

Step 3 : Add duration (sec)

———————————————————————————

HOW TO RUN PERFORMANCE TEST SEQUENTIALLY 
Test Plan - Run Thread Group Consecutively

Step 1 : Test Plan - select Run Thread Groups consecutively

———————————————————————————

HOW TO ADD WEBSITES SEQUENTIALLY TO A PERFORMANCE TEST
Thread Group - Forever - Scheduler - Duration + Startup Delay

Step 1 : Add duration (max) to first thread group - 30 sec

Step 2 : To consecutive thread groups add delay 

example (for a 30 sec test plan):
1st Thread Group : delay = 0 sec  |  duration = max duration of the test = 30 sec

2nd Thread Group : delay = 10 sec  |  duration = max - delay = 30 - 10 = 20 sec

3rd Thread Group : delay = 20 sec  |  duration = max - delay = 30 - 20 = 10 sec

___________________________________________________________

Today we will learn:

What is Correlation
Why is it required
How to use Regular Expression Extractor

Step 1 : Create a Test Plan where you want to do dynamic referencing in JMeter

Step 2 : Add Regular Expression Extractor in the Step from where response value(s) needs to be extracted

Step 3 : Refer the extracted value (referred by Reference Name) into a subsequent step

Step 4 : Run and validate

references : http://regexr.com/

Today we will learn :

1. What are JMeter Templates
2. How to use Templates
3. How to create your own Template
____________________________________________

1 What are JMeter Templates

Reusable project scripts

User can select any template and it will generate a Test Plan with basic and necessary components
____________________________________________

2 How to use Templates

File - Templates - select a template and start building over it.
____________________________________________

3 How to create your own Template

Step 1 : save your test plan as .jmx file

Step 2 : place the .jmx inside jmeter/bin/templates

Step 3 : edit templates.xml file to add your template

Step 4 : restart JMeter and check
____________________________________________

templates.xml 

template 
isTestPlan=”true”     :    template will create a new test plan
isTestPlan=”false”    :    templat will be merged into existing test plan
name : Name of the template
fileName  : location of .jmx file
description  : description will be displayed in html 

Today we will learn :

1. What is Test Script Recorder
2. How to record your test with it

helpful tips

__________________________________________

1 What is Test Script Recorder

is a workbench element
used to record user actions on browser

__________________________________________

2 How to record with Test Script Recorder

Step 1 : Add Test Script Recorder in WorkBench
              WorkBench - Non-Test Elements - HTTP(S) Test Script Recorder

Step 2 : In a Thread Group add
              Logic Controller - Recording Controller

Step 3 : Add the values in Test Script Recorder parameters

Step 4 : Set Browser Proxy Configuration

Step 5 : Install the certificate in your browser (if required)

Step 6 : Start Recording

Step 7 : Run and validate

__________________________________________

Helpful Tips:

Use JMeter’s inbuilt Recording template
You can use the in-built template - Recording

to start quickly
to save time and effort

___________________________________________

References : http://jmeter.apache.org/usermanual/component_reference.html#HTTP(S)_Test_Script_Recorder

Today we will learn:

1. How to create test for file upload
2. How to record test for file upload
____________________________________

1  How to create test for File Upload

Step 1 : Create a Test Plan - Thread Group - HTTP Request

Step 2 :  Add values in HTTP Request sampler

Step 3 : Add File Upload details

Step 4 : Add Listeners to view results 

Step 5 : Run and Validate

____________________________________

2  How to record test for File Upload

Step 1 : Add Template - Recording

Step 2 : Provide a port number (e.g. 8181)

Step 3 : Set browser to listen to this port

Step 4 : Start Recording

Step 5 : Filter the samples you need from recorded samples

Step 6 : Run and Validate
__________________________________________

Helpful Tips:

In case you face any issues..
Check the following : 

Method is POST
Use multipart/form-data for POST Box is checked
File location | Parameter | Mime Type  are correct
Check the logs for any other error

In case you face any issues in recording the scenario...
Watch : 
https://youtu.be/amEHuq8auTU?list=PLhW3qG5bs-L-zox1h3eIL7CZh5zJmci4c

___________________________________________

References :
http://www.tinyupload.com/
http://www.freeformatter.com/mime-types-list.html

Today we will learn:

1. How to create test for file download

Step 1: Add Thread Group - HTTP Request sampler

Step 2 : Add values in HTTP Request sampler

Step 3 : Add Listeners to view results

Step 4 : Add Listener - Save Responses to a file

Step 5 : Add values to this Listener

Step 6 : Run and Validate
______________________________________

Helpful Tips

How to avoid overwriting downloaded files.
in a multi-user test

Use function : ${__threadNum} as Prefix

___________________________________________

References : 
ftp://speedtest.tele2.net/

Today we will learn

1. How to debug and fix errors
2. How to use Debug Sampler
____________________________

Step 1 : Analyse with Listener - View Results Tree

Step 2 : Analyse information in Log Viewer

Step 3 : Add Listner - Debug Sampler

____________________________

Helpful Tips

How to use Debug PostProcessor
Enable Debug for elements
Using external plugins for Debugging

___________________________________________

References:
How to use Plugin Manager:
https://youtu.be/KQfoBOK37ms?list=PLhW3qG5bs-L-zox1h3eIL7CZh5zJmci4c

Step 1 : add blazemeter plugin to chrome browser

Step 2 : start blazemeter plugin and login to blazemeter

Step 3 : Record your scenario - Stop Recording - Export .jmx

In case you find jmx option disabled export as json and use this link to convert to jmx
http://converter.blazemeter.com/

Step 4 : Import imx file in JMeter

Step 5 : Add listeners

Step 6 : Run and validate

View logs by clicking on log viewer

Can also be accessed from Options - Log Viewer
Set different log levels from options menu
ERROR
WARN
INFO
DEBUG
TRACE

Log file in jmeter/bin :
jmeter.log
log4j2.xml

Since 3.2, JMeter logging is not configured through properties file(s) such as jmeter.properties any more, but it is configured through a Apache Log4j 2 configuration file 
References : http://jmeter.apache.org/usermanual/get-started.html#logging

How to use Step by Step Debugger

Plugin Manager - Step-by-Step Debugger
Run - Step-by-Step Debugger

Step 1 : Goto jmeter bin folder

Step 2 : Open jmeter.properties file

Step 3 : Find the line 
            #jmeter.save.saveservice.timestamp_format=yyyy/MM/dd HH:mm:ss.SSS
             Uncomment and edit the format as required

Step 4 : Restart JMeter

How to use Step by Step Debugger - https://www.youtube.com/watch?v=7JI3GD0ifTw

References:
https://reqres.in/
https://codebeautify.org/jsonviewer

What is JSON Extractor
How to use JSON Extractor
How to refer multiple values
How to refer json extracted values
________________________________________________________________

1. How to set thread(users) / ramp-up period etc from command line

2. Run and validate

Useful TIPS

${__P(User,1)}

References : https://jmeter.apache.org/usermanual/functions.html
________________________________________________________________

Today we will learn:

Adding timestamp to result file names so that a new file is generated every time

Syntax:
${__time(MM-dd-yyyy-HH-mm-ss,)}

References : https://jmeter.apache.org/usermanual/functions.html

Today we will learn:

1. How to use Concurrency Thread Group
2. How to control threads

References:
Stepping Thread Group is deprecated
https://jmeter-plugins.org/wiki/SteppingThreadGroup/
https://jmeter-plugins.org/wiki/ConcurrencyThreadGroup/

Step 1 : Add JMeterPlugins-Standard lib

        https://jmeter-plugins.org/downloads/old/

Step 2 : Run your test and get jtl file

Step 3 : Use JMeterPluginsCMD.bat to generate aggregate csv result file from jtl file

syntax:

JMeterPluginsCMD.bat --generate-csv "location of csv file" --input-jtl "location of jtl file" --plugin-type AggregateReport

Use JMeterPluginsCMD tool with Plugin Type = AggregateReport

References:
https://jmeter-plugins.org/wiki/JMeterPluginsCMD/
https://jmeter-plugins.org/downloads/old/

Today we will learn:

1. How to get count of child nodes/objects from a json response
2. How to assert the count

Useful TIPS

References
Json Extractor - https://www.youtube.com/watch?v=3w0x6u4-6ng
https://reqres.in/
https://reqres.in/api/users?page=2
https://jsoneditoronline.org/
https://codebeautify.org/jsonviewer

Today we will learn:

1. How to refer values from csv file
2. How to run the test equal to the count of rows in csv file

Step 1: Create a ThreadGroup
Step 2 : Add a WhileController
Step 3 : Add a sampler (as child of WhileController)
Step 4 : Add CSV data set config (as child of WhileController)
Step 5 : Add values. Keep 
             Recycle on EOF = FALSE
             Stop Thread on EOF = FALSE
Step 6 : Refer the variable in sampler request
Step 7 : Add a listener. Run and validate

Today we will learn

1. How to refer current time stamp in JMeter
2. How to get timestamp in required format
3. How to get shifted time in required format

References : https://help.sumologic.com/Send-Data/Sources/04Reference-Information-for-Sources/Timestamps%2C-Time-Zones%2C-Time-Ranges%2C-and-Date-Formats

Today we will learn:

1. How to run specific threads in the test plan from command line

jmeter -n -t "C:UsersRaghav PalDesktopJmeterTestTest1.jmx" -l "C:UsersRaghav PalDesktopJmeterTestresult.csv" -Jusers1=2 -Jusers2=0

How to monitor server Health | 

PerfMon

Today we will learn:

1. How to add PerfMon plugin in JMeter
2. How to start PerfMon server
3. How to monitor server health with JMeter PerfMon plugin

Response

Time

Avg Time

Connect Time

Size

Bytes

Server - machine where your test application is hosted

CPU, Memory, Disk I/O, Network

10000 users

9000 users, high CPU usage

Suggest hardware infrastructure

Step 1 : Add perfmon plugin in JMeter

1. Download and add to JMeter lib and ext folder https://jmeter-plugins.org/wiki/PerfMon/

2. Plugins Manager

Step 2 : On server

Download perform server agent https://github.com/undera/perfmon-agent/blob/master/README.md

Step 3 : Start the perfmon server agent

Mac/linux - terminal > sh startAgent.sh

Windows - startAgent.bat

Check client can talk to server via port 4444

Step 4 : Create JMeter test to monitor Server Health

Step 5 : Run and Validate

_____________________________________________________

JMeter | Install on AWS Linux

Amazon AWS Linux

Step 1 : Check java is installed

Step 2 : Get JMeter

wget http://www-eu.apache.org/dist//jmeter/binaries/apache-jmeter-4.0.tgz

Step 3 : Extract jmeter

tar -xf apache-jmeter-4.0.tgz

Step 4 : Run a sample test

References

https://jmeter.apache.org/download_jmeter.cgi

_____________________________________