| 摘要 |
<p>PURPOSE:To provide a distributed processing system which can maintain the consistency of data even if there is a node in a down CONSTITUTION:Host computers 210, 220, and 230 which are connected with a communication line 201 have the same data 'A01' in an overlapping state. Each host stores a memory with the transmission source and destination of the data together with the data name 'A01'. When the host 230 alters the data 'A01'. the host 230 informs the host 220 being the sender of the data of the alteration. At this time, if the host 220 is in a down state, the host 230 informs all the hosts in the network of that. The host 210 which is informed recognizes itself as the transmission source for the data 'A01' to the host 220 and answers to the host 230. The host 230 receives the answer and sends the alteration report of the data 'A01' to the answering host 210.</p> |
