Technique 2: Reducing lock granularity.
技术2：减小锁的粒度。
In this case, lock granularity is very important.
在这种情况下，锁的粒度是非常重要的。
This method supports multiple granularity lock, automatic lock and automatic lock escalation.
该方法支持多粒度锁、自动加锁特性和自动锁粒度升级特性。
Then, the two granularity locks, document-lock and path-lock, are proposed to meet the actual needs, by analyzing from the perspective of the lock and the data concurrence.
接着，从锁的角度和并发度的分析，提出能够满足实际需求的两种粒度锁——文档锁和路径锁。
Then, the two granularity locks, document-lock and path-lock, are proposed to meet the actual needs, by analyzing from the perspective of the lock and the data concurrence.
接着，从锁的角度和并发度的分析，提出能够满足实际需求的两种粒度锁——文档锁和路径锁。
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