J meter notes

 these are personal notes created for my reference 

add >> CSV Data Set Config

how to call csv value in to variable ${UserName}

Generate random number in to variable ${__Random(0,79)}

can add Loop Controller to loop a request certain time 

Use logic controller >> Trnsaction controller to group requests { if one request failed , controller shows as failed }

use logic controller >> simple controller to just organise requests

Add timer >> constant timer to create a delay in execution

Add logic controller >> IF controller to add logics ex :this will take calue of NumberOfOpenTasks and validate if it is equal to 1. if it is 1 then inside of the if controller will execute, else it will exit. 

  ${__javaScript(${NumberOfOpenTasks} == 1)}

Post processor > Boundry extractor to extract values from response

in the request header values use Header manager. 

if has form parameters add inside request body parameters , else use data body for things like json

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get jmeter updates to influx db 

1) install influx DB by executing the command in power shell command.

2) run the service by : C:\influxdb2\influxdb2_windows_amd64> .\influxd.exe

3) access server by http://localhost:8086/

4) Create a new bucket 

5) Download and install Grafana , it start automatically 

6) it runs in http://localhost:3000/login

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Open Jmater Project

7 ) Add Back End Listner 

8 ) 

Add Parameter : influxdbUrl = http://localhost:8086/api/v2/write?org=local&bucket=Jmeter

Add Parameter {bucket token} : influxdbToken = nrGmU8pPHW_GvkOxQu4OqYEcmQDpzBCt7x1y_w98WigaN7x5tSmSv9JsP6C5y2QtaLBGZbyA8tiqbxTIIaTlMg

Influx DB Organization name 

Generate a token for a bucket.

9) execute jmeter script and validate if data come to influx db 

10) Log in to Graphana  > Influx DB 

Configure DB 

Graphana >> Home >> Explore >> Sample Query > [Show buckets ( check bucket exists) ]

Select Simple query

link : https://www.youtube.com/watch?v=uIyapm2boe0 

>> Better way to create flux query in Graphana ( get flux query from influx query designer ) 

https://www.youtube.com/watch?v=uIyapm2boe0

Open flux data exploer > Design parameters you want > click Script Editor

Copy the flux code 

Open Graphana >> Dashboards >> New Dashboard 

Add Vishuwalization >> Select the DB 

Paste Flux Query copied above 

Apply 

Edit Graph and you can change title , Line colors etc

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About Sandamal

Software Tester / Quality Analyst From Sri Lanka. Interest in Learning and Sharing new knowledge in Software Testing.You can contact me via LinkedIn OR FaceBook.