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Method for file deletion and recovery against system failures in database management system
Method for file deletion and recovery against system failures in database management system
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机译:数据库管理系统中针对系统故障的文件删除和恢复方法
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摘要
A method for file deletion and recovery against system failures in a database management system comprising steps of deleting files listed in a pending action list during a transaction commit process, writing a non-atomic file deletion as an atomic operation into a log and recovering uncompleted file deletion during restart recovery by using the log is disclosed. When system failures occur during file deletion in a database management system, resources of which releasing is interrupted by failures are released perfectly through recovery step, so it is advantageous in that coherency of data is maintained and efficiency of storage device arises.
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