Simulating no of VCores In Anypoint Studio


In this tutorial we are going to demonstrate how can we simulate the no of vcores in Anypoint studio.

Most of the time what happens is when we deploy an application in studio and test with smaller payload it run’s successfully in Local, but when deploy the same application on Cloudhub and start doing the load testing it show Out Of Memory (OOM) issues, to catch the errors in the development phase we can simulate the vcores in Anypoint studio and can catch any performance issues much prior to load testing before actual load test on environment

To demonstrate this we are going to create a mule application in Anypoint studio and convert json to CSV and deploy the application on Anypoint studio and Cloudhub and see the OOM issues encountered while sending the request


Create mule application

Simulating VCores in Anypoint Studio


Deploy application to cloudhub

Simulating VCores in Anypoint Studio


Trigger the request from postman, here we are sending the large json payload size (more than 80 MB)

Simulating VCores in Anypoint Studio


See the error below, we can see OOM and JVM issues and then application shutdown automatically

Simulating VCores in Anypoint Studio


Now we will reproduce the same issue in Anypoint studio

To simulate the issue, we need to configure the below parameters in Anypoint studio

Settings for 0.1 VCore



Go to application->Right Click->Run Configuration-> Go to Arguments->

Simulating VCores in Anypoint Studio


Click Run, application will deploy successfully on local

Simulating VCores in Anypoint Studio


While trigger the request from postman application shutdown due to out of memory errors


When we change the setting to 0.2 vcore in local or in Cloudhub and deploy the application with 0.2 vcore, application runs successfully and process the big json payload to CSV without any issues

Settings for 0.2 VCore




Application deployed on local with 0.2 vcore


Trigger the json request from postman, it processed all the records successfully

Graphical user interface, text, application, email Description automatically generated


Thank you for taking out time to read the above post. Hope you found it useful. In case of any questions, feel free to comment below. Also, if you are keen on knowing about a specific topic, happy to explore your recommendations as well.
For any latest updates or posts on our website, you can follow us on LinkedIn. Look forward to connecting with you there.

Share this:
Notify of
Inline Feedbacks
View all comments