公开(公告)号：US11645263B2

公开(公告)日：2023-05-09

申请号：US17454407

申请日：2021-11-10

Applicant: Coupang Corp.

Inventor： Zhan Chen ,  Zhiyong Huang ,  Bin Dong ,  Chuanchuan Han ,  Junzhao Zhang

IPC: G06F16/23 ,  G06F11/14 ,  G06F11/20 ,  G06F16/25 ,  G06F11/00 ,  G06F16/21 ,  G06F11/34

CPC classification number: G06F16/2358 ,  G06F11/008 ,  G06F11/1425 ,  G06F11/2025 ,  G06F11/3409 ,  G06F16/21 ,  G06F16/256

Abstract: Systems and methods for managing a highly available distributed database comprising: a memory storing instructions; and one or more processors configured to execute the instructions to: determine that a source node, in a distributed database comprising the source node and one or more replica nodes, is not available; select a most-updated replica node from the one or more replica nodes; switch a role of the most-updated replica node to source; update a data store to label the source node as unavailable and the selected replica node as being a promoted source node; send a notification to a user device to update a database topology based on the updated data store; determine whether the user device has updated the database topology; and upon determining the user device has not updated the database topology, continue to send the notification to the user device until the user device has updated the database topology.