发明授权
US08498315B2 System and method of synchronizing real time clock values in arbitrary distributed systems
有权
在任意分布式系统中同步实时时钟值的系统和方法
- 专利标题： System and method of synchronizing real time clock values in arbitrary distributed systems
- 专利标题（中）： 在任意分布式系统中同步实时时钟值的系统和方法
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申请号： US13270002申请日： 2011-10-10
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公开(公告)号： US08498315B2公开(公告)日： 2013-07-30
- 发明人: Paul R. Frank , Gregory M. Thorson , Russell L. Nicol , Donglai Dai , Joseph M. Placek
- 申请人： Paul R. Frank , Gregory M. Thorson , Russell L. Nicol , Donglai Dai , Joseph M. Placek
- 申请人地址： US CA Fremont
- 专利权人： Silicon Graphics International Corp.
- 当前专利权人： Silicon Graphics International Corp.
- 当前专利权人地址： US CA Fremont
- 代理机构： Sunstein Kann Murphy & Timbers LLP
- 主分类号： H04J3/06
- IPC分类号： H04J3/06
摘要：
A system for establishing a primary master node in a computer system includes a plurality of nodes, each node configured with an update interval, a hierarchy of master nodes selected from the plurality of nodes, wherein the master nodes are configured to synchronize the plurality of nodes with a clock value by sending out its clock value when its update interval has expired, wherein each node resets its update interval when it receives the clock value, a primary master node selected from the hierarchy of master nodes based on its update interval, and at least one backup master node selected from the hierarchy of master nodes based on its update interval, the backup master node configured to become the primary master node when the plurality of nodes do not receive the clock value after a predetermined period of time has elapsed.
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