Design a system to schedule jobs in a distributed environment.

Focus on outlining the key components of a distributed job scheduling system, including job queues, worker nodes, and a central scheduler. Discuss how to handle job prioritization, fault tolerance, and load balancing among workers. Consider scalability and how the system can adapt to varying workloads. Be prepared to address potential challenges, such as network latency and failure recovery, and propose solutions for monitoring and optimizing job execution. Finally, think about how you would implement logging and metrics to track system performance.