US 12,443,624 B2
Data processing method, system, device, computer program product, and storage medium
Zechao Zhuang, Hangzhou (CN)
Assigned to HANGZHOU ALICLOUD FEITIAN INFORMATION TECHNOLOGY CO., LTD., Hangzhou (CN)
Appl. No. 18/573,942
Filed by HANGZHOU ALICLOUD FEITIAN INFORMATION TECHNOLOGY CO., LTD., Hangzhou (CN)
PCT Filed Jun. 30, 2022, PCT No. PCT/SG2022/050457
§ 371(c)(1), (2) Date Dec. 22, 2023,
PCT Pub. No. WO2023/277819, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 202110751374.7 (CN), filed on Jul. 2, 2021.
Prior Publication US 2024/0289352 A1, Aug. 29, 2024
Int. Cl. G06F 16/27 (2019.01); G06F 16/23 (2019.01); G06F 16/2458 (2019.01)
CPC G06F 16/275 (2019.01) [G06F 16/2358 (2019.01); G06F 16/2474 (2019.01)] 13 Claims
OG exemplary drawing
 
1. A data processing method, the method comprising, by a read-write node of a database system:
generating a temporary copy page when a data page does not satisfy a condition for writing into a disk; wherein the copy page comprises: a first sequence identifier of a log corresponding to modification of the data page at a first time, a second sequence identifier of a log corresponding to modification of the data page at a second time, and data information of the data page after a plurality of modifications over a period from the first time to the second time, the first time being earlier than the second time, and the second sequence identifier in the copy page being fixed without variation;
executing an operation of updating the first sequence identifier corresponding to the data page in the disk to the second sequence identifier in the copy page when the copy page satisfies the condition for writing into the disk, and
replacing the data page in the disk with the copy page to complete a data information update operation; and
wherein the data information update operation comprises an operation of replacing data information comprised in the data page in the disk with the data information comprised in the copy page.