公开(公告)号：US20250036650A1

公开(公告)日：2025-01-30

申请号：US18227207

申请日：2023-07-27

Applicant: SAP SE

Inventor： Yu Gao ,  Junpeng Liu ,  Zhifeng Xu ,  Hyeong Seog Kim ,  Won Wook Hong ,  Ji Hoon Jang

IPC: G06F16/27

Abstract: Disclosed techniques and solutions can provide improved snapshot replication. Typically, an initial replica obtained using snapshot replication is periodically updated. However, the update process can unnecessarily consume computing resources if data in a source data object has not changed with respect to data in a replica data object. Disclosed techniques check to determine whether a snapshot replica is out of date before obtaining a new snapshot. The checks can be performed on manual request or on the occurrence of triggers, such as receiving a query that accesses the replica data object or according to a schedule. Information for current and prior versions of the remote data object can be compared to determine whether a replica is out of date, such as digest values of contents of the remote data object or timestamps associated with the remote data object.