Sicherstellung von Datenbankstationswiederherstellungskonsistenz

Details

Veröffentlichungs-Nr.

EP2657859

Aktenzeichen

EP13002137

Anmeldetag

23. April 2013

Veröffentlichung

22. Februar 2017

Erteilung

22. Februar 2017

Rechtsraum

EP

IPC

G06F17/00G06F11/00G06F17/30

Abstract

A plurality of transactions are executed in a data storage application. Thereafter, log entries are sequentially stored according to the plurality of transactions in at least one log. Each log segment has a first globally unique identifier (GUID) uniquely identifying the log segment and includes a second GUID uniquely identifying an immediately preceding log segment in the sequence. In addition, the current position in the at least one log is stored along with the current log segment GUID together with data pages during data backup. Subsequently, a position in the at least one log from which to initiate replay of the log segments and a GUID for a corresponding log segment at the determined position at database recovery time is determined based on information stored during data backup. Replay of the log segments is then initiated starting at the determined position. Related apparatus, systems, techniques and articles are also described.

Anmelder

Firmen

SAP SE
SAP AG

Land

🇩🇪 Deutschland

Fachgebiete