We can access the UCI machine learning repository by navigating to https://archive.ics.uci.edu/ml/. So, what is the UCI machine learning repository? UCI stands for the University of California Irvine machine learning repository, and it is a very useful resource for getting open source and free datasets for machine learning. Although PySpark's main issue or solution doesn't concern machine learning, we can use this as a chance to get big datasets that help us test out the functions of PySpark.

Let's take a look at the KDD Cup 1999 dataset, which we will download, and then we will load the whole dataset into PySpark.