Infrastructure at Exabyte Scale -- Kafka, HDFS, and LinkedIn's Data Backbone

LinkedIn is the birthplace of Apache Kafka -- now processing over 7 trillion messages per day across 100+ internal clusters. The company operates its own global data centers while augmenting with Azure, manages exabyte-scale HDFS clusters, and has pioneered open-source infrastructure that powers much of the modern internet. This module explores LinkedIn's infrastructure at scale, its open-source legacy, and how this knowledge helps candidates in system design interviews and the "Why LinkedIn?" conversation.