公开(公告)号：US20180032408A1

公开(公告)日：2018-02-01

申请号：US15220044

申请日：2016-07-26

Applicant: SAP SE

Inventor： Anant AGARWAL ,  Mahendra Chavan ,  Nandan Marathe ,  Dipesh Pandit

IPC: G06F11/14 ,  G06F17/30

CPC classification number: G06F11/1464 ,  G06F11/1469 ,  G06F17/30289 ,  G06F17/30557 ,  G06F17/30589

Abstract: Synchronized backup and recovery of heterogeneous DBMSs is described herein. An embodiment operates by receiving, by at least one processor, a request for a data backup process at a first server; creating, by at least one processor, a pipe between processes of the first sever and the data backup process; performing, by at least one processor, the data backup process according to an execution command sent from a second server; and sending, by at least one processor, a result of the data backup process from the second server to the first server when the data backup process has terminated.

公开(公告)号：US20230176974A1

公开(公告)日：2023-06-08

申请号：US18085459

申请日：2022-12-20

Applicant: SAP SE

Inventor： Sagar SHEDGE ,  Nishant SHARMA ,  Nawab ALAM ,  Mohammed ABOUZOUR ,  Gunes ALUC ,  Anant AGARWAL

IPC: G06F12/0862 ,  G06F12/0891 ,  G06F13/16 ,  G06F12/123 ,  G06F12/0882 ,  G06F12/0808

CPC classification number: G06F12/0862 ,  G06F12/0891 ,  G06F13/1673 ,  G06F12/123 ,  G06F12/0882 ,  G06F12/0808

Abstract: Disclosed herein are system, method, and computer program product embodiments for utilizing an extended cache to access an object store efficiently. An embodiment operates by executing a database transaction, thereby causing pages to be written from a buffer cache to an extended cache and to an object store. The embodiment determines a transaction type of the database transaction. The transaction type can a read-only transaction or an update transaction. The embodiment determines a phase of the database transaction based on the determined transaction type. The phase can be an execution phase or a commit phase. The embodiment then applies a caching policy to the extended cache for the evicted pages based on the determined transaction type of the database transaction and the determined phase of the database transaction.

公开(公告)号：US20220138056A1

公开(公告)日：2022-05-05

申请号：US17575879

申请日：2022-01-14

Applicant: SAP SE

Inventor： Simhachala Sasikanth GOTTAPU ,  Yahong WANG ,  Nandan MARATHE ,  Anant AGARWAL

IPC: G06F11/14 ,  G06F11/20 ,  G06F16/27

Abstract: Disclosed herein are system, method, and computer program product embodiments for non-blocking backup for tertiary initialization in a log replay only node. An embodiment operates by performing a standard log replay on a secondary server and briefly suspending the standard log replay in response to tertiary initialization. Further, the secondary server may determine backup block information and perform a page-aligned backup process from the secondary server to a tertiary server. Additionally, the secondary server may determine log replay block information, and perform a modified log replay concurrently with the backup process based on the backup block information.