使用单独的文件来表示锁是一个非常古老的方法。

Using a separate file to indicate a lock is an old way of doing things.

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使用单独的文件来表示锁，是“劝告式(advisory)”锁而不是“强制(mandatory)”锁的一个例子。

Using a separate file to indicate a lock is an example of an advisory lock, not a mandatory lock.

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这表示尽管该锁拥有大量受到堵塞的请求，但总的来说它拥有很多的成功获取，因此总堵塞请求的百分比仍然很低。

This would mean that although the lock had a high number of blocked requests, overall it had a very high number of successful acquires so the percentage of overall blocked requests would be low.

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