Patent ID: 11892922
Assignee: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. The method according to claim 6, further comprising:
receiving a deletion instruction; and
when the deletion instruction is used to instruct to delete a master application server, deleting the master application server, controlling the backup application server to delete locally recorded configuration information of the master application server, and controlling to switch a device role of the backup application server to a master application server when the recorded backup application server state is a backup active state; wherein the backup active state is used to indicate that a backup application server works normally;
when the deletion instruction is used to instruct to delete a backup application server, deleting the backup application server and controlling the master application server to delete locally recorded configuration information of the backup application server.