Invention Application
- Patent Title: Asynchronous Garbage Collection in Database Redo Log Replay
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Application No.: US15436535Application Date: 2017-02-17
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Publication No.: US20180239676A1Publication Date: 2018-08-23
- Inventor: Thorsten Glebe , Werner Thesing , Christoph Roterring
- Applicant: SAP SE
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G06F12/02 ; G06F17/30

Abstract:
Recovery of a database system by taking the database system offline is initiated. Thereafter, recovery operations specified by a redo log of the database system are replayed. A cleanup log is generated that identifies cleanup operations occurring during the replay of the recovery operations for garbage collection. Concurrent with the startup of the database, garbage collection of the cleanup operations as specified in the database savepoint is initiated. In addition, concurrent with the replay of the recovery operations, garbage collection of the cleanup operations specified by the cleanup log is initiated. The database system is later brought online after all of the recovery operations are replayed.
Public/Granted literature
- US10795779B2 Asynchronous garbage collection in database redo log replay Public/Granted day:2020-10-06
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