公开(公告)号：US06449733B1

公开(公告)日：2002-09-10

申请号：US09206504

申请日：1998-12-07

申请人： Wendy B. Bartlett ,  Jan O. Granberg ,  Colleen A. Lingley ,  Roger C. Parkison ,  Gary S. Smith ,  Neil A. Trickey

发明人： Wendy B. Bartlett ,  Jan O. Granberg ,  Colleen A. Lingley ,  Roger C. Parkison ,  Gary S. Smith ,  Neil A. Trickey

IPC分类号： H02H305

CPC分类号： G06F11/1482 ,  G06F11/2038

摘要： In a multiple processing system or cluster, a pair of processes, assuming the role of a primary process and a backup process to the primary process, are replaced on-line by stopping the backup process; creating the replacement backup process; checking to ensure compatibility between the primary and replacement backup processes so that communication between them is possible and information sent by the primary process to the replacement will be correctly received and handled; providing the replacement backup process with that state of the primary process needed in order to take over the function and operation of the primary process; switching roles so that the replacement backup process now takes over the function and operation of the primary, and the primary becomes the backup; and repeating the steps of creating, checking, providing and switching, to conclude with a newly-installed replacement primary process and a replacement backup process, completing the on-line replacement of the process pair.

摘要翻译： 在多处理系统或集群中，假设主进程和备份进程作用于主进程的一对进程将通过停止备份进程进行在线替换; 创建替换备份过程; 检查以确保主备份过程和备用备份过程之间的兼容性，以便它们之间的通信成为可能，并且主进程发送到更换的信息将被正确接收和处理; 为替代备份过程提供必要的主流程状态，以便接管主进程的功能和操作; 交换角色，以便替换备份进程现在接管主服务器的功能和操作，主备备份进程备份; 并重复创建，检查，提供和切换的步骤，以新安装的替换主流程和替换备份流程结束，完成流程对的在线替换。