penguincoder/uncomplicated_mutex
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Andrew Coleman 2014-12-22 16:00:35 -06:00
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@ -3,7 +3,7 @@ Uncomplicated Mutex
A transactional mutex based in Redis for Ruby. It works across processes, threads, and machines provided you can all access the same Redis server.
This is subtely different from two related projects here on Github: kenn/redis-mutex and dv/redis-semaphore
This is subtely different from two related projects here on Github: https://github.com/kenn/redis-mutex and https://github.com/dv/redis-semaphore
RedisMutex uses a polling interval and raises an exception on lock timeout. RedisSemaphore uses `blpop` to wait until a value is pushed into a list. I have noticed several issues with the two approaches. I have had jobs continue to run for days with RedisSemaphore due to random and unknown failures. RedisMutex raises an exception, and in my situation, I do not need an exception, I would prefer to assume that the previous job has failed and that execution should continue.