Kafka is a beast when it comes to handling data streams at scale. But when your Kafka setup grows into a massive cluster, keeping it running smooth? Yeah, that can feel like trying to tame a tornado. Imagine hundreds, maybe thousands, of brokers, topics, and partitions—all moving data at lightning speed. The moment one thing slows down, you’re staring at bottlenecks that could trip up your whole system. It’s not pretty.