A Partition Fuzzy Checkpointing Strategy for Real-Time Main Memory Databases

Liao Guoqiong; Liu Yunsheng; Xiao Yingyuan

Journal of Computer Research and Development > 2006 > 43(7): 1291-1296.

Liao Guoqiong, Liu Yunsheng, Xiao Yingyuan. A Partition Fuzzy Checkpointing Strategy for Real-Time Main Memory Databases[J]. Journal of Computer Research and Development, 2006, 43(7): 1291-1296.

Citation:

Liao Guoqiong, Liu Yunsheng, Xiao Yingyuan. A Partition Fuzzy Checkpointing Strategy for Real-Time Main Memory Databases[J]. Journal of Computer Research and Development, 2006, 43(7): 1291-1296.

Citation:

Liao Guoqiong, Liu Yunsheng, Xiao Yingyuan. A Partition Fuzzy Checkpointing Strategy for Real-Time Main Memory Databases[J]. Journal of Computer Research and Development, 2006, 43(7): 1291-1296.

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A Partition Fuzzy Checkpointing Strategy for Real-Time Main Memory Databases

1(School of Computer Science & Technology, Huazhong University of Science & Technology, Wuhan 430074) 2(Corporation Technology, Siemens Limited China, Beijing 100102)

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Published Date: July 14, 2006

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Abstract

Abstract

Checkpointing is one of the important recovery techniques of real-time main memory database systems (RTMMDBS). Through analyzing the data characteristics in RTMMDBS, a method to calculate data checkpointing priorities is presented, which takes the timing constraints of both data and transactions into consideration. A partition fuzzy checkpionting strategy based on data segment checkpointing priority—PFCS-SCP is suggested, and the correctness of PFCE-SCP is also discussed. It is shown through performance testing that PFCS-SCP strategy can decrease the missing ratio of transactions in RTMMDBS.
- real-time database,
- main memory databases,
- database recovery,
- fuzzy checkpointing

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