分布式短事务系统中提交协议的研究

分布式短事务系统具有事务简短、请求频繁的特点。现有的分布式提交协议多面向复杂的长事务应用场景，难以满足短事务处理的需求。针对分布式短事务系统的特点，提出一种新型的分布式事务提交方法。该方法在事务参与者之间建立互用日志，并通过询问协议进行交互，获得事务进展情况，从而减少了强制写日志次数和通信次数，优化了故障处理过程。与其他分布式提交协议和系统比较，本协议可以有效地提高事务效率，并具有更高的日志可用性。

Research on Commit Method in Distributed Short Transaction Systems

Transactions in distributed short transaction system are usually short and asked frectuently. Most of the exiting distributed commit protocols arc designed for the complex long transaction system, therefore they can not meet the needs of short transactions. In this paper, an improved schema for distributed short transaction systems was proposed.By backuping logs and querying among participants, we can efficiently reduce the number of log-written, communicadons during the transaction and optimizing the failure processing. Compared with other distributed commit protocols and systems,this protocol can effectively improve the efficiency of services,and has a very high log availability.