Invention Grant
- Patent Title: Logical recovery with unbundled transaction services
- Patent Title (中): 逻辑恢复与非捆绑交易服务
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Application No.: US12827941Application Date: 2010-06-30
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Publication No.: US08930321B2Publication Date: 2015-01-06
- Inventor: David Lomet , Kostas Tzoumas
- Applicant: David Lomet , Kostas Tzoumas
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agent Steve Wight; Judy Yee; Micky Minhas
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F11/14

Abstract:
This patent application relates to enhanced logical recovery techniques for redo recovery operations of a system with an unbundled storage engine. These techniques can be implemented by utilizing an enhanced logical recovery approach in which a dirty page table (DPT) is constructed based on information logged during normal execution. The unbundled storage engine can include a transaction component (TC) that is architecturally independent of a data component (DC). These techniques can enhance redo recovery operations by mitigating the resources needed to determine whether previously executed operations sent from the TC to the DC are to be repeated in response to a recovery-initiating event. This can include using the DPT to avoid fetching every data page corresponding to every previously executed operation received by the DC during recovery and/or pre-fetching data pages and/or index pages that correspond to PIDs in the DPT.
Public/Granted literature
- US20120005168A1 Logical Recovery with Unbundled Transaction Services Public/Granted day:2012-01-05
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