Based on the deep - going exploration of the distributed data system , the backup and the log - file technology , this article puts forwards a data restoration method on the basis of two - phase commit protocol 本文在對分布式數據庫系統深入探討的基礎上,基于備份和日志記錄技術,提出了一種基于兩階段提交協議的分布式數據庫系統的數據恢復方法。