分布式事务的提交和恢复机制是分布式数据库研究中的一个重要方面。
The research of transaction committing and recovery mechanism is an important aspect within the distributed database research.
根据分布式数据库中事务发出不同的资源请求方式，现有的分布式数据库死锁检测算法通常针对某种资源请求模型而提出。
According to different resource request that issued by transactions, existing deadlock detection algorithms of distributed database are commonly presented for certain resource request model.
本文将详细介绍分布式事务、并发控制和资源请求模型，总结出分布式数据库系统的通用死锁条件。
In this paper, distirbuted transaction, concurrency control and resource request model are introduced in detail. The universal deadlock condition in distirbuted database system is summarized.
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