Patent ID: 7653729
Filing Date: 2010-01-26
Classification: H04L

Abstract:
1. An information processing system comprising: a plurality of server apparatuses each having an application to execute a Web service in response to a request from a client; and a load distribution apparatus which transmits the request from the client to one of the plurality of server apparatuses; wherein the load distribution apparatus includes: a connection log information determination unit adapted to determine whether the request from the client contains connection log information generated by the server apparatus; and a server deciding unit adapted to decide, in accordance with server designation information in the connection log information, one of the plurality of server apparatuses as a transmission destination of the request from the client, if said connection log information determination unit determines that the request from the client contains the connection log information; and wherein each server apparatus includes: a specific description determination unit adapted to determine whether the request from the client contains a specific description, wherein the specific description includes a description representing a test mode and a description designating one of the plurality of server apparatuses, the descriptions being contained in a URL; and a processing unit adapted to execute processing of the application in accordance with the request from the client and generate a response to the client; wherein if the specific description determination unit determines that the request from the client contains the specific description, the processing unit generates connection log information containing server designation information for indicating a connection to the server designated by the specific description and attaches the generated connection log information to the response to the client.