U.S.-Australia Cooperative Research: Partition Checkpointing and Recovery for Distributed Databases

9417907该奖项将部分资助玛格丽特·H·艾奇博士和南卫理公会大学的研究生研究助理与澳大利亚布里斯班昆士兰大学计算机系的玛丽亚·奥洛夫斯卡博士和罗伯特·科伦布博士进行合作研究的旅费、生活费和出版费。合作研究的重点将是开发新的针对分布式数据库的检查点和恢复算法。数据库检查点将数据库的状态保存在与主数据库副本分开的稳定内存中。如果主副本出现故障，可以使用日志的备份副本恢复丢失。到目前为止，南方卫理公会小组研究的检查点技术不需要事务和检查点之间的同步，还有助于在故障后部分恢复数据库。这些功能对于高吞吐量的内存数据库(MMDB)系统和分布式数据库环境都是可取的。这项合作工作的目标是研究将MMDB恢复扩展到分布式数据库的技术。要进行的具体工作将对分布式数据库环境应用分区检查点，将扩展分布式环境的提交和部分恢复算法，并将执行初步分析研究，以验证所开发的方法。***

9417907 Eich This award will partially support travel, living expenses and publication costs for Dr. Margaret H. Eich and a graduate research assistant from Southern Methodist University to conduct cooperative research with Dr. Maria Orlowska and Dr. Robert Colomb, of the Department of Computer Science at the University of Queensland in Brisbane, Australia. The collaborative research will focus on developing new checkpointing and recovery algorithms aimed at distributed databases. Database checkpointing saves the state of a database on a stable memory separate from the primary database copy. In the event of a failure of a primary copy, the loss can be restored using the backup copy of the log. Checkpointing techniques so far examined by the Southern Methodist group require no synchronization between transactions and checkpointing, and also facilitate a partial recovery of the database after failure. These features are desirable for both a high throughput Main Memory Database (MMDB) system, and also for a distributed database environment. Objectives for this cooperative work are to examine techniques for extending MMDB recovery to distributed databases. The specific work to be conducted will apply partition checkpointing to distributed database environments, will expand commit and partial recovery algorithms for distributed environments, and will perform initial analytic studies validating the developed approaches. ***