| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain an automatic version-up of a process in a cooperation with new and old processes without a suspension of a system. SOLUTION: In a logistical system, processes 14 to 20 are connected to a message bus 12 through a buffer 22 so that a bus manager 28 send a message sent from each process to addressed processes. When a new process 15 is installed, a start-up of the new process 15 is written into a buffer 22a shared with the new and old processes. When the old process reads a message of the process 15, the old process performs only to those messages read before the message of the process 15, and then suspends processing of the old process, when the new process reads the message, the new process starts performing from those messages read after the message.</p> |
