Checkpointing Strategy and Redo Point Strategy for Embedded Real-time Main Memory Databases
The failure recovery of the real-time main memory database system needs the rapid recovery in the embedded environment,checkpointing is an important recovery technique of real-time main memory database.A fuzzy checkpointing strategy based on the ART-Ⅱ(an active real-time main memory database)is suggested,and two types of redo point strategies for this checkpointing strategy are also developed.The performance test shows that this checkpointing strategy and the redo point strategies can increase the ratio of the transactions meeting the deadline and the performance of the system.