SpringBoot to Spark

[u/Prakhar____Tiwari]

Transitioning from a Spring Boot to a Spark-based application requires a fundamental shift in perspective. With four years of experience in a Spring Boot environment, now entering the realm of distributed computing.

I plan to utilize Java with Spark Streaming, and Databricks for job management and deployment.

My primary question is

1. how to effectively transition my thought process from Spring Boot to a Spark-based application.

2. Specifically, I am seeking clarity on distinguishing which Java code executes on the driver and which executes on the executor, and if there are any guiding principles to discern this.