关键词: 麒麟，分布式加密存储系统，元数据处理，一致性

Abstract: 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. Resups show that 2PC-MP can ensure the consistency of metadata processing and also enhance its performance.

Key words: Kylin, Distributed encrypting storage system, Metadata processing, Consistency