Ever wondered how multiple processes can safely share resources without stepping on each other's toes? In this episode, we'll talk about Redis's distributed lock and discover how it ensures mutual exclusion for shared resources across a network of Redis servers, allowing only one process at a time to gain access. We’ll delve into its safety and liveness properties that guarantee reliable lock management, even amidst failures. Join us as we unpack potential challenges like network partitions and discuss solutions that improve the Redlock algorithm's resilience.