Invention Grant
US08549142B2 Replicated state machine utilizing view change protocol resilient to performance attacks
失效
利用视图更改协议的复制状态机可以适应性能攻击
- Patent Title: Replicated state machine utilizing view change protocol resilient to performance attacks
- Patent Title (中): 利用视图更改协议的复制状态机可以适应性能攻击
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Application No.: US13422258Application Date: 2012-03-16
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Publication No.: US08549142B2Publication Date: 2013-10-01
- Inventor: Stuart Goose , Jonathan Kirsch
- Applicant: Stuart Goose , Jonathan Kirsch
- Applicant Address: US NJ Iselin
- Assignee: Siemens Corporation
- Current Assignee: Siemens Corporation
- Current Assignee Address: US NJ Iselin
- Agency: F. Chau & Associates, LLC
- Agent Donald B. Paschburg
- Main IPC: G06F15/16
- IPC: G06F15/16 ; G06F12/00

Abstract:
A network of replicated servers providing a service includes a plurality of server replicas. A leader is elected from among the plurality of server replicas for coordinating ordering of operations among the plurality of server replicas. A view change protocol is executed by the plurality of server replicas after the election of the leader. Each iteration of the view change protocol corresponds to a unique view number. The server replicas are directed by the view change protocol to cooperate to order operations by exchange of information associated with particular view numbers. The information is prioritized in accordance with the view numbers. The non-leaders monitor the response time of the leader and elect a new leader when it is determined that the monitored length of time is greater than a threshold value that is dependent upon current network conditions.
Public/Granted literature
- US20120254412A1 REPLICATED STATE MACHINE UTILIZING VIEW CHANGE PROTOCOL RESILIENT TO PERFORMANCE ATTACKS Public/Granted day:2012-10-04
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