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Which distributed lock service would you use?
Requirements are:
I'm not interested in answers like "it can be done over a database", or "it can be done over JavaSpaces" - I know. I'm interested in a ready, out-of-the-box, proven implementation.
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Distributed locks provide mutually exclusive access to shared resources in a distributed environment. Distributed locks are used to improve the efficiency of services or implement the absolute mutual exclusion of accesses.
A distributed lock manager (DLM) runs in every machine in a cluster, with an identical copy of a cluster-wide lock database. In this way a DLM provides software applications which are distributed across a cluster on multiple machines with a means to synchronize their accesses to shared resources.
This is a node. js implementation of the redlock algorithm for distributed redis locks. It provides strong guarantees in both single-redis and multi-redis environments, and provides fault tolerance through use of multiple independent redis instances or clusters.
Distributed locks in Java are locks that can work with not only multiple threads running on the same machine, but also threads running on clients on different machines in a distributed system.
A newer kid on the block is hazelcast. I've been playing with it and it is amazingly simple to use and configure.
As far as I can see there shouldn't be any conflict between Gigaspaces and hazelcast as hazelcast doesn't have any dependencies i.e. no jgroups.jar etc
Hazelcast:
java.util.concurrency.locks.Lock
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