When should you use a distributed lock manager, anyway? It's a good question, and it really depends on your situation.

hey folks, been thinking about distributed systems lately. we often talk about databases, caches, and message queues, but what about distributed locks? when does the complexity of adding something like ZooKeeper or etcd for distributed locking actually pay off, versus trying to manage concurrency within individual services or relying on database locks? curious to hear your experiences and when you've found them indispensable or perhaps overkill