The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10795779 B1

Date of Patent:

Oct. 06, 2020

Filed:

Feb. 17, 2017

Asynchronous garbage collection in database redo log replay

Applicant:

Sap SE, Walldorf, DE;

Inventors:

Thorsten Glebe, Leimen, DE;

Werner Thesing, Lauteral, DE;

Christoph Roterring, Sinsheim, DE;

Assignee:

SAP SE, Walldorf, DE;

Attorney:

Jones Day

Primary Examiner:

Hung T Vy

Int. Cl.

CPC ...

G06F 11/14 (2006.01); G06F 12/02 (2006.01); G06F 11/20 (2006.01);

U.S. Cl.

CPC ...

G06F 11/1469 (2013.01); G06F 11/1471 (2013.01); G06F 11/2038 (2013.01); G06F 11/2094 (2013.01); G06F 11/2097 (2013.01); G06F 12/0253 (2013.01); G06F 2212/1041 (2013.01); G06F 2212/1044 (2013.01); G06F 2212/702 (2013.01);

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.

Find Patent Forward Citations