Explore a critical backend engineering issue in this 19-minute video that delves into a system-halting bug caused by exhausted TCP source ports. Learn about the system architecture, observe the bug's behavior, and follow along with backend troubleshooting techniques. Discover the root cause of the problem and gain insights into ephemeral ports on loopback interfaces. Enhance your understanding of TCP connections, port management, and effective backend engineering practices to prevent similar issues in your own systems.