Patent ID: 11954121
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A non-transitory computer readable medium storing one or more instructions that cause a computer to operate as a selection device, that selects a response condition of a database system in which data is duplicated and stored in a plurality of nodes, and holds a write time and a read time of each of the plurality of nodes, to execute:
selecting a first response condition for sending back a completion response in response to a data write request on a basis of the write time of each of the plurality of nodes such that a response time for the data write request to the database system becomes shorter than a requirement value of the write time requested to the database system and a number of nodes in which writing has been completed increases;
selecting a second response condition for sending back a completion response in response to a data read request on a basis of the first response condition and the read time of each of the plurality of nodes such that a response time for the data read request to the database system becomes shorter than a requirement value of the read time requested to the database system;
instruct the database system to send back a completion response in response to a data write request according to the first response condition; and
instruct the database system to send back data in response to a data read request according to the second response condition.