发明授权
US08296271B1 System and method for optimizing data recovery in a parallel database
有权
用于优化并行数据库中的数据恢复的系统和方法
- 专利标题: System and method for optimizing data recovery in a parallel database
- 专利标题(中): 用于优化并行数据库中的数据恢复的系统和方法
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申请号: US11090484申请日: 2005-03-28
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公开(公告)号: US08296271B1公开(公告)日: 2012-10-23
- 发明人: Craig Patrick Richardson , James Wesley Seaman , Elizabeth Marie Charboneau
- 申请人: Craig Patrick Richardson , James Wesley Seaman , Elizabeth Marie Charboneau
- 申请人地址: US VA McLean
- 专利权人: Federal Home Loan Mortgage Corporation
- 当前专利权人: Federal Home Loan Mortgage Corporation
- 当前专利权人地址: US VA McLean
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 主分类号: G06F17/00
- IPC分类号: G06F17/00
摘要:
A method and system for data recovery in a parallel database system in which data stored in the database has been corrupted by a transaction or operation. Transaction log files corresponding to each node of the parallel database are scanned to determine an operation that caused the corruption of the stored data. Information corresponding to the corrupted data before the operation causing the corruption is then generated based on the scanned transaction log. The operation responsible for corrupting the data is then rolled back, and the corrupted data is replaced with the original data stored in the database prior to the corruption.
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