Summary
Through the Spark UI, you can unveil the hidden dimensions of your Spark workloads, transforming them from code into orchestrated symphonies of efficiency, speed, and precision. In this chapter, we covered how to access the Spark UI and how to use it to profile and troubleshoot potential performance issues.
In this and the previous chapters, we covered all the basics you’ll need to build pipelines in Scala and Spark. In the next two chapters, we’ll put this all together and build batch and streaming processes for real-world use cases.
