I'm starting a new learning journey: Apache Spark . Rather than simply watching tutorials and memorizing Spark APIs, I want to understand what Spark is actually solving, how it works internally, and why it has become such an important tool in data engineering. So this series will be my attempt ...
Source: [Dev.to](https://dev.to/sanjeev_kumar_g03/apache-spark-for-beginners-1-why-does-spark-exist-1461)