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1. 发明授权

US06571278B1 Computer data sharing system and method for maintaining replica consistency 失效
标题翻译：计算机数据共享系统和维护副本一致性的方法
公开(公告)号：US06571278B1
公开(公告)日：2003-05-27
申请号：US09425559
申请日：1999-10-22
申请人： Yasushi Negishi , Mohan Ahuja , Kazuya Tago
发明人： Yasushi Negishi , Mohan Ahuja , Kazuya Tago
IPC分类号： G06F15167
CPC分类号： H04L67/325 , H04L29/06 , H04L69/329 , Y10S707/99952 , Y10S707/99953
摘要： To improve communication efficiency during the updating of a replica, and to reduce the amount of memory required for the updating of a replica. The present invention is a computer for maintaining consistency of replica contents by interchanging data modification with another computer. The computer includes: a replica including shared data; a receiver for receiving, from another computer, a modification request for data included in the replica; and a controller for controlling, regardless of a receiving order of the modification request, for each receipt of the modification request, a timing of update execution for the replica in accordance with the received modification request by using information included in the modification request. The timing of replica updating in accordance with the received modification requests can be determined, regardless of the order in which the modification requests are received, that is, the order of the transmission from other computers. Therefore, communication efficiency can be improved and the amount of required memory can be reduced.
摘要翻译：在更新副本期间提高通信效率，并减少更新副本所需的内存量。本发明是一种计算机，用于通过与另一计算机交换数据修改来保持副本内容的一致性。计算机包括：包含共享数据的副本; 用于从另一计算机接收对所述副本中包括的数据的修改请求的接收器; 以及控制器，用于通过使用包括在修改请求中的信息，根据接收到的修改请求，控制对接收到修改请求的每次接收修改请求的接收顺序，而不管接收到修改请求的顺序。可以确定根据接收的修改请求的复制更新的定时，而不管接收到修改请求的顺序，即从其他计算机发送的顺序。因此，可以提高通信效率，并且可以减少所需存储器的数量。

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