面向完井的读写时间戳乐观并发控制协议研究

Research on Optimistic Concurrency Control Protocol Based on Read-write Timestamp for Well Completion

针对完井业务的移动计算环境下具有频繁断接性、资源有限性、网络通信不对称性等问题导致的移动事务处理是效率低的问题,结合完井业务的数据操作多为查询的特点,提出了基于完井的读写时间戳的乐观并发控制协议。该协议对BOCC的应用环境进行了延伸,使val-write的临界区限制得以消除。同时,基于对各种冲突的分析,解决了性能过耗、频繁重启等问题,提高了处理并发事物的效率。通过在完井运行信息移动服务平台实验,以及实验结果的分析,验证了该协议的有效性。

In this paper,the problems that mobile transaction processing has low efficiency due to frequent disconnection,limited resources and asymmetric network communication in the mobile computing environment of completion business are considered.Combining the data operation of the completion business with the query features,the paper proposes an optimistic concurrency control protocol based on the read-write timestamp for well completion.This protocol extends the application environment of BOCC and eliminates the critical area limitation of val-write.At the same time,based on the analysis of various conflicts,it solves the problems of over-performance and frequent restart,and improves the handling of concurrency effectiveness.The validity of this protocol is verified by experimenting with the Mobile Service Completion Information Platform and analyzing the experimental results.