| 摘要 |
PURPOSE:To assure the continuity of the process, by collecting the data to a queuing system and then copying them every time the process of the on-line system comes to a checking point. CONSTITUTION:When the execution of a process 301 is over, the state of the own memory state concerning the process 301 is collected to a queuing system and then copied. Then a checking point 1 is written into the own and queuing systems respectively. After this, a process 302 is executed and then the state of the own memory state concerning the process 302 is collected to the queuing system and copied. Then a checking point 2 is written into checking point storage tables 305 and 306 of the own and queuing systems respectively. When processing is carried out in such a way, for example, if an on-line system has a breakdown under execution of the process 302, the queuing system can be started again at and after the process 302 since the results of processes up to the process 301 are copied at the queuing system by 401. |
