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公开(公告)号：US10587676B2
公开(公告)日：2020-03-10
申请号：US16014872
申请日：2018-06-21
IPC分类号： H04L29/08 , H04L29/06 , H04N21/218
摘要： A computer implemented method includes storing data in a server, selecting a block of data from the stored data, storing the selected block of data in a cache memory of the server, and transmitting a block availability signal to a client, the block availability signal including an identifier of the selected block of data and indicating that the selected block of data is stored in the cache memory and is available to be accessed by the client.
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公开(公告)号：US10027752B2
公开(公告)日：2018-07-17
申请号：US15687127
申请日：2017-08-25
发明人： Daniel N. Bauer , Luis Garcés-Erice , Urs Hunkeler
摘要： Embodiments of the invention provide a method, system, and computer program product for selecting a server as a selected server for performing a specified function in a distributed computing system. In one embodiment, the method comprises identifying a group of servers in the system; and choosing as the selected server the server that has been in the system the longest. In one embodiment, each of the servers in the group has a respective contention period, during which the server sends a contention message, and the selected server is chosen using these contention messages. The servers in the group may have imperfect clock synchronization. In this case, the contention periods of the servers is kept greater than the maximum difference between the server clocks. The invention may be used to select a name server, or to select a server for another service.
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公开(公告)号：US20170187798A1
公开(公告)日：2017-06-29
申请号：US15455743
申请日：2017-03-10
发明人： Luis Garcés-Erice
IPC分类号： H04L29/08
CPC分类号： H04L67/1046 , G06F15/163 , G06F15/173 , G06Q30/02 , H04L67/1053 , H04L67/16 , H04W4/08 , H04W8/186
摘要： A method, system and computer program product are disclosed for maintaining a membership view of a distributed computing system comprising a multitude of members, wherein each of said members sends out a message indicating that said each of the members is available in the system. In one embodiment, the method comprises maintaining a first list of at least some of the members in the distributed system; and over a period of time, when one of the members sends out the message indicating that said one of the members is available in the distributed system, adding said one of the members to a second list. At defined times, the first list is replaced with the second list. In an embodiment, the method further comprises at said defined times, starting a new, empty second list.
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公开(公告)号：US20170353547A1
公开(公告)日：2017-12-07
申请号：US15685218
申请日：2017-08-24
发明人： Luis Garcés-Erice
IPC分类号： H04L29/08 , G06F15/173 , G06F15/163 , G06Q30/02 , H04W8/18 , H04W4/08
摘要： A method, system and computer program product are disclosed for maintaining a membership view of a distributed computing system comprising a multitude of members, wherein each of said members sends out a message indicating that said each of the members is available in the system. In one embodiment, the method comprises maintaining a first list of at least some of the members in the distributed system; and over a period of time, when one of the members sends out the message indicating that said one of the members is available in the distributed system, adding said one of the members to a second list. At defined times, the first list is replaced with the second list. In an embodiment, the method further comprises at said defined times, starting a new, empty second list.
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公开(公告)号：US09596304B2
公开(公告)日：2017-03-14
申请号：US15131549
申请日：2016-04-18
发明人： Daniel N. Bauer , Luis Garcés-Erice , Urs Hunkeler
CPC分类号： H04L67/1095 , G06Q10/06 , H04L41/0886 , H04L63/10 , H04L67/1008
摘要： Embodiments of the invention provide a method, system, and computer program product for selecting a server as a selected server for performing a specified function in a distributed computing system. In one embodiment, the method comprises identifying a group of servers in the system; and choosing as the selected server the server that has been in the system the longest. In one embodiment, each of the servers in the group has a respective contention period, during which the server sends a contention message, and the selected server is chosen using these contention messages. The servers in the group may have imperfect clock synchronization. In this case, the contention periods of the servers is kept greater than the maximum difference between the server clocks. The invention may be used to select a name server, or to select a server for another service.
摘要翻译： 本发明的实施例提供了一种用于选择服务器作为在分布式计算系统中执行指定功能的选定服务器的方法，系统和计算机程序产品。 在一个实施例中，该方法包括识别系统中的一组服务器; 并选择系统中最长的服务器作为所选服务器。 在一个实施例中，组中的每个服务器具有相应的竞争时段，服务器在此期间发送争用消息，并且使用这些争用消息选择所选择的服务器。 组中的服务器可能具有不完美的时钟同步。 在这种情况下，服务器的争用周期保持大于服务器时钟之间的最大差异。 本发明可以用于选择名称服务器，或者为另一服务选择服务器。
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公开(公告)号：US20160359967A1
公开(公告)日：2016-12-08
申请号：US15239326
申请日：2016-08-17
发明人： Luis Garcés-Erice
IPC分类号： H04L29/08
CPC分类号： H04L67/1046 , G06F15/163 , G06F15/173 , G06Q30/02 , H04L67/1053 , H04L67/16 , H04W4/08 , H04W8/186
摘要： A method, system and computer program product are disclosed for maintaining a membership view of a distributed computing system comprising a multitude of members, wherein each of said members sends out a message indicating that said each of the members is available in the system. In one embodiment, the method comprises maintaining a first list of at least some of the members in the distributed system; and over a period of time, when one of the members sends out the message indicating that said one of the members is available in the distributed system, adding said one of the members to a second list. At defined times, the first list is replaced with the second list. In an embodiment, the method further comprises at said defined times, starting a new, empty second list.
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公开(公告)号：US10567496B2
公开(公告)日：2020-02-18
申请号：US15685218
申请日：2017-08-24
发明人： Luis Garcés-Erice
IPC分类号： G06F15/16 , H04L29/08 , H04W4/08 , G06Q30/02 , H04W8/18 , G06F15/173 , G06F15/163
摘要： A method, system and computer program product are disclosed for maintaining a membership view of a distributed computing system comprising a multitude of members, wherein each of said members sends out a message indicating that said each of the members is available in the system. In one embodiment, the method comprises maintaining a first list of at least some of the members in the distributed system; and over a period of time, when one of the members sends out the message indicating that said one of the members is available in the distributed system, adding said one of the members to a second list. At defined times, the first list is replaced with the second list. In an embodiment, the method further comprises at said defined times, starting a new, empty second list.
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公开(公告)号：US20170187802A1
公开(公告)日：2017-06-29
申请号：US15455257
申请日：2017-03-10
发明人： Daniel N. Bauer , Luis Garcés-Erice , Urs Hunkeler
IPC分类号： H04L29/08
CPC分类号： H04L67/1095 , G06Q10/06 , H04L41/0886 , H04L63/10 , H04L67/1008
摘要： Embodiments of the invention provide a method, system, and computer program product for selecting a server as a selected server for performing a specified function in a distributed computing system. In one embodiment, the method comprises identifying a group of servers in the system; and choosing as the selected server the server that has been in the system the longest. In one embodiment, each of the servers in the group has a respective contention period, during which the server sends a contention message, and the selected server is chosen using these contention messages. The servers in the group may have imperfect clock synchronization. In this case, the contention periods of the servers is kept greater than the maximum difference between the server clocks. The invention may be used to select a name server, or to select a server for another service.
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公开(公告)号：US20160234308A1
公开(公告)日：2016-08-11
申请号：US15131549
申请日：2016-04-18
发明人： Daniel N. Bauer , Luis Garcés-Erice , Urs Hunkeler
IPC分类号： H04L29/08
CPC分类号： H04L67/1095 , G06Q10/06 , H04L41/0886 , H04L63/10 , H04L67/1008
摘要： Embodiments of the invention provide a method, system, and computer program product for selecting a server as a selected server for performing a specified function in a distributed computing system. In one embodiment, the method comprises identifying a group of servers in the system; and choosing as the selected server the server that has been in the system the longest. In one embodiment, each of the servers in the group has a respective contention period, during which the server sends a contention message, and the selected server is chosen using these contention messages. The servers in the group may have imperfect clock synchronization. In this case, the contention periods of the servers is kept greater than the maximum difference between the server clocks. The invention may be used to select a name server, or to select a server for another service.
摘要翻译： 本发明的实施例提供了一种用于选择服务器作为在分布式计算系统中执行指定功能的选定服务器的方法，系统和计算机程序产品。 在一个实施例中，该方法包括识别系统中的一组服务器; 并选择系统中最长的服务器作为所选服务器。 在一个实施例中，组中的每个服务器具有相应的竞争时段，服务器在此期间发送争用消息，并且使用这些争用消息选择所选择的服务器。 组中的服务器可能具有不完美的时钟同步。 在这种情况下，服务器的争用周期保持大于服务器时钟之间的最大差异。 本发明可以用于选择名称服务器，或者为另一服务选择服务器。
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公开(公告)号：US11489911B2
公开(公告)日：2022-11-01
申请号：US16776723
申请日：2020-01-30
IPC分类号： H04L67/06 , H04L67/1097 , H04L65/75 , H04N21/218 , H04L65/70
摘要： A server system includes a database for storing data, a memory device for storing data selected from the data in the database, and a processing device that selects data from the database, stores the selected data in the memory device, and transmits over a communication network an availability signal to a client, the availability signal including an identifier of the selected data and indicating that the selected data is stored in the memory device and is available to be accessed by the client.
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