公开(公告)号：US20090327817A1

公开(公告)日：2009-12-31

申请号：US12147763

申请日：2008-06-27

申请人： Arun Kwangil Iyengar ,  Thomas Repantis

发明人： Arun Kwangil Iyengar ,  Thomas Repantis

IPC分类号： G06F17/30 ,  G06F11/07

CPC分类号： G06F17/30348 ,  G06F2201/82

摘要： Techniques for coordinating updates to replicated data are disclosed. For example, in a system comprised of a plurality of nodes, a method for maintaining consistent copies of data across said nodes comprises the following steps. A copy of an object o1 is maintained by a plurality of nodes. In response to a request r1 to update a copy of object o1, a message is sent to at least some of said plurality of nodes instructing a node receiving the message to invalidate its copy of object o1. In response to a node n1 receiving an invalidation message arising from r1 wherein n1 is processing another request r2 to update object o1, requests r1 and r2 are coordinated to prevent the requests from causing conflicting updates or invalidations.

摘要翻译： 公开了用于协调对复制数据的更新的技术。 例如，在由多个节点组成的系统中，用于在所述节点之间维持一致的数据副本的方法包括以下步骤。 对象o1的副本由多个节点维护。 响应于更新对象o1的副本的请求r1，向所述多个节点中的至少一些节点发送消息，指示接收到该消息的节点使其对象o1的副本无效。 响应于接收到由r1产生的无效消息的节点n1，其中n1正在处理另一请求r2来更新对象o1，协调请求r1和r2以防止请求引起冲突的更新或无效。

公开(公告)号：US07996360B2

公开(公告)日：2011-08-09

申请号：US12147763

申请日：2008-06-27

申请人： Arun Kwangil Iyengar ,  Thomas Repantis

发明人： Arun Kwangil Iyengar ,  Thomas Repantis

IPC分类号： G06F7/00

CPC分类号： G06F17/30348 ,  G06F2201/82

摘要： Techniques for coordinating updates to replicated data are disclosed. For example, in a system comprised of a plurality of nodes, a method for maintaining consistent copies of data across the nodes comprises the following steps. A copy of an object o1 is maintained by a plurality of nodes. In response to a request r1 to update a copy of object o1, a message is sent to at least some of the plurality of nodes instructing a node receiving the message to invalidate its copy of object o1. In response to a node n1 receiving an invalidation message arising from r1 wherein n1 is processing another request r2 to update object o1, requests r1 and r2 are coordinated to prevent the requests from causing conflicting updates or invalidations.

摘要翻译： 公开了用于协调对复制数据的更新的技术。 例如，在由多个节点组成的系统中，用于在节点之间维持一致的数据副本的方法包括以下步骤。 对象o1的副本由多个节点维护。 响应于更新对象o1的副本的请求r1，向多个节点中的至少一些节点发送消息，指示接收到该消息的节点使其对象o1的副本无效。 响应于接收到由r1产生的无效消息的节点n1，其中n1正在处理另一请求r2来更新对象o1，协调请求r1和r2以防止请求引起冲突的更新或无效。