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What is Distributed Lock Server
原标题:

What is Distributed Lock Service (or Server)? When it needs to be used?

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Often called a Distributed Lock Manager, it s a way for distributed applications to control access to shared resources. A typical example would be a cluster of computers that present what seems to be a single unified file system, even though behind the scenes they are sharing a collection of file systems. Machines in the cluster would need a (distributed) lock in order to make changes to a file, to prevent race conditions.

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