发明名称 |
Method and system for controlling recovery downtime by maintaining a checkpoint value |
摘要 |
A method and system for reducing overhead associated with recovering after a failure. According to the method, a checkpoint value is maintained that indicates which records of a plurality of records have to be processed after the failure. The plurality of records contain change information that corresponds to a plurality of data blocks. A target checkpoint value is determined based on a desired number of data block reads that will be required during a redo phase of recovery. Changes contained in volatile memory are then written to nonvolatile memory to advance the checkpoint value to at least the target checkpoint value. |
申请公布号 |
US6678704(B1) |
申请公布日期 |
2004.01.13 |
申请号 |
US20010843388 |
申请日期 |
2001.04.25 |
申请人 |
ORACLE INTERNATIONAL CORPORATION |
发明人 |
BRIDGE, JR. WILLIAM H.;KLOTS BORIS;LOAIZA JUAN R.;JOSHI ASHOK |
分类号 |
G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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