PROBLEM TO BE SOLVED: To provide an information processing system capable of uniquely specifying log information of jobs executed in different networks. An information processing system having one or more information processing apparatuses, which is connected to the same network as a log information management unit that manages log information and a log information management unit, The first job execution unit 106, which adds the unique identification information issued by the log information management unit to the log information and sends it to the log information management unit, is connected to a network different from the log information management unit, and is executed. A second job execution unit 50 that adds unique identification information issued by the log information management unit to the log information of the job and sends it to the log information management unit. The log information management unit, when receiving the request for issuing the identification information from the first job execution unit or the second job execution unit, issues the identification information to the first job execution unit or the second job execution unit. [Selection diagram] Fig. 13
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