Load Test Solution For PayrollService

Description

This dockerized solution is built using open source load testing tool k6. Project has been modularized in into different module and has been implemented in javascript. File PayrollServiceTest.js is the main script and rest of the folder are modules.

Steps to execute load test

• Update the field IP in file named EnvConfig.json under folder 'Config' with the IP address of your local machine assuming the dockerized application under test APP_PERFORMANCE_CC is running on your local as well.
• Update the field 'Vusers' in file named WorkloadConfig.json under folder 'Config' to send the desired number of concurrent mesaages for example if set to 100, same number of messages would be sent concurrently to sns service.
• To execute the test run docker-compose up command from the parent directory of solution.

Steps to validate load test

• Once the test stops it print the summary at the end in the terminal, look for field checks in the summary, ideally it should 100% in case of no failure.
• Debug mode of test is set to full, it would prints the response of all request made.
• Result of load would be logged in folder named Results for further reference.
• Validation from DB - Execute following command to get the count of events processed and avg response time it took post test : select count(*) ,avg( ((DATE_PART('day', processed_at::timestamp - occurred_at::timestamp) * 24 + DATE_PART('hour', processed_at::timestamp - occurred_at::timestamp)) * 60 + DATE_PART('minute', processed_at::timestamp - occurred_at::timestamp)) * 60 + DATE_PART('second', processed_at::timestamp - occurred_at::timestamp)) as AvgResponseTime from performance p;

Errors that can be encountered while executing the test

If error looks like this Dial tcp connection refused then there are chance wrong IP has been used, if you are connected to VPN try with differnt ips' enlisted upon running ipconfig in case of winodws and ifconfig in case of linux.