Storage medium, uniqueness assurance realizing method, session management method and uniqueness assurance information setting management device

A uniqueness assurance realizing method for realizing uniqueness assurance corresponding to the connection among a plurality of communication protocols when a server load balancer selects a server for providing a service requested by a terminal device from among a plurality of servers capable of providing respective services by a plurality of communication protocols, the method comprising:

• uniqueness assurance information identification process referring to a uniqueness assurance information identification rule that defines information of a position in which identification information of the uniqueness assurance information is stored for each communication protocol and for each message, and identifying the identification information of the uniqueness assurance information existing in the message of a corresponding communication protocol;
• identification information acquisition process obtaining identification information for identifying a session generated in a server selected from among the plurality of servers by the server load balancer in response to the request when provision of the service is requested by a first communication protocol from the terminal device;
• assurance information setting process setting a corresponding relation between identification information obtained by the identification information acquisition process and a server that has generated a session corresponding to the identification information in the server load balancer as the uniqueness assurance information for the uniqueness assurance by a service of a second communication protocol;
• and
• selection process enabling the server load balancer to refer to the uniqueness assurance information set by the assurance information setting process and to select a server for providing the service from among the plurality of servers when provision of the service is requested by the second communication protocol from the terminal device;
• wherein the assurance information setting process controls timing a response to a request made using the first communication protocol is transmitted to a server that has obtained identification information used to generate uniqueness assurance information to be set in the server load balancer.

A uniqueness assurance information setting management device for managing setting of uniqueness assurance information for realizing uniqueness assurance for distributing related requests from a terminal device to a server load balancer for selecting a server for providing a service requested by the terminal device from among a plurality of servers capable of providing respective services by a plurality of communication protocols, the device comprising:

• uniqueness assurance information identification unit capable of for referring to a uniqueness assurance information identification rule that defines information of a position in which identification information of the uniqueness assurance information is stored for each communication protocol and for each message, and identifying the identification information of the uniqueness assurance information existing in the message of a corresponding communication protocol;
• an identification information acquisition unit capable of for obtaining identification information for identifying a session generated in a server selected from among the plurality of servers by the server load balancer in response to the request when provision of the service is requested by a first communication protocol from the terminal device;
• and
• an assurance information setting unit capable of for setting a corresponding relation between identification information obtained by the identification information acquisition unit and the server that has generated the session corresponding to the identification information in the server load balancer as the uniqueness assurance information for the uniqueness assurance by a service of a second communication protocol;
• wherein the assurance information setting unit controls timing a response to a request made using the first communication protocol is transmitted to a server that has obtained identification information used to generate uniqueness assurance information to be set in the server load balancer;
• wherein the uniqueness assurance information identification unit, identification information acquisition unit, and assurance information setting unit are executed by a processor of the uniqueness assurance information setting management device.