Antirez weblog A proposal for more reliable locks using Redis antirez 8 hours ago. Many people use Redis to implement distributed locks. Many believe that this is a great use case, and that Redis worked great to solve an otherwise hard to solve problem. Others believe that this is totally broken, unsafe, and wrong use case for Redis. Both are right, basically. Distributed locks are not trivial if we want them to be safe, and at the same time we demand high availability, so that Redis nodes can go down and still clients are able to acquire and release locks. At the same time a fast lock manager can solve tons of problems which are otherwise hard to solve in practice, and sometimes even a far from perfect solution is better than a very slow solution. Can we have a fast and reliable system at the same time based on Redis? This blog post is an exploration in this area. I’ll try to de...