发明申请
- 专利标题: Method and system for rollback-free failure recovery of multi-step procedures
- 专利标题(中): 多步骤程序无回退故障恢复的方法和系统
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申请号: US10659453申请日: 2003-09-10
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公开(公告)号: US20050055606A1公开(公告)日: 2005-03-10
- 发明人: Serkan Kutan , Shaun Cox
- 申请人: Serkan Kutan , Shaun Cox
- 申请人地址: US WA Redmond 98052
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond 98052
- 主分类号: G06F11/00
- IPC分类号: G06F11/00 ; G06F11/14 ; G06F11/20
摘要:
Disclosed is a rollback-free method for performing multi-step procedures in the presence of possible failure. As the procedure proceeds from its initial state through transitions to its final state, its constituent transitions are monitored for failure. If a failure is detected, then the procedure is “sidetracked” into a recovery coordination state. From the recovery coordination state, the procedure is logically taken back to its initial state and retried. In this manner, the procedure is shepherded, without rollbacks, through its transitions until it successfully reaches its final state. In a particular embodiment, a multi-step procedure is developed for moving a resource from one resource server to another. The steps of the procedure are designed so that all throughout the procedure, both of the resource servers and a directory server are kept synchronized. This allows client requests to proceed without interruption even during the resource movement.
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