CAJ | 학술논문

在麒麟分布式加密存储系统中,分布式元数据处理在系统发生异常时会出现不一致的情况.为了解决这一问题,提出了元数据处理一致性协议2PC-MP.该协议引入事务序号,保证日志记录和消息交互的一致性;增加悬挂队列,避免参与者进程因网络异常而阻塞;增加回退队列,解决用户登录session失效后无法回退的问题;通过分布式日志保证系统故障后的快速恢复.结果表明,2PC-MP协议能够保证元数据处理的一致性和提高系统的性能.
재기린분포식가밀존저계통중,분포식원수거처리재계통발생이상시회출현불일치적정황.위료해결저일문제,제출료원수거처리일치성협의2PC-MP.해협의인입사무서호,보증일지기록화소식교호적일치성;증가현괘대렬,피면삼여자진정인망락이상이조새;증가회퇴대렬,해결용호등록session실효후무법회퇴적문제;통과분포식일지보증계통고장후적쾌속회복.결과표명,2PC-MP협의능구보증원수거처리적일치성화제고계통적성능.
In Kylin Distributed Encrypting Storage System,data inconsistency may occur during distributed metadata processing under system exception.To solve this problem,the consistency protocol 2PC-MP was presented.In this protocol,transaction number is introduced to ensure the consistency of log records and message interaction,append queue is added to prevent process blocking under network exception,redeem queue is added to allow failed operation to roll back when the user's session gets invalid,and distributed logging technology brings a fast recovery after system failure.Results show that 2PC-MP can ensure the consistency of metadata processing and also enhance its performance.