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1. 发明授权

US08505065B2 Access control policy in a weakly-coherent distributed collection 有权
标题翻译：访问控制策略在弱连贯的分布式集合中
公开(公告)号：US08505065B2
公开(公告)日：2013-08-06
申请号：US11765886
申请日：2007-06-20
申请人： Edward P. Wobber , Martin Abadi , Thomas L. Rodeheffer
发明人： Edward P. Wobber , Martin Abadi , Thomas L. Rodeheffer
IPC分类号： G06F17/00 , H04L29/06
CPC分类号： G06F17/30578 , H04L9/12 , H04L9/321 , H04L9/3268 , H04L2209/60 , H04L2209/80
摘要： A system is disclosed for creating and implementing an access control policy framework in a weakly coherent distributed collection. A collection manager may sign certificates forming equivalence classes of replicas that share a specific authority. The collection manager and/or certain privileged replicas may issue certificates that delegate authority for control of item policy and replica policy. Further certificates may be signed that create one or more items, set policy for these one or more items, and define a set of operations authorized on the one or more items. The certificates issued according to the present system for creating and implementing a control policy framework cannot be modified or simply overridden. Once a policy certificate is issued, it may only be revoked by the collection manager or by a replica having revocation authority.
摘要翻译：公开了一种用于在弱相关分布式集合中创建和实现访问控制策略框架的系统。收集管理员可以签署形成共享特定权限的副本的等价类的证书。收集管理员和/或某些特权副本可能会颁发授权来管理项目策略和副本策略的证书。可以签署创建一个或多个项目的其他证书，为这些一个或多个项目设置策略，并且定义一个或多个项目授权的一组操作。根据本制度制定的颁发和实施控制政策框架的证书不能修改或简单地覆盖。颁发政策证书后，只能由收款经理或具有撤销授权的副本撤销。

2. 发明授权

US08150802B2 Accumulating star knowledge in replicated data protocol 有权
标题翻译：在复制数据协议中积累明星知识
公开(公告)号：US08150802B2
公开(公告)日：2012-04-03
申请号：US12053632
申请日：2008-03-24
申请人： Venugopalan Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Meg Walraed-Sullivan , Edward P. Wobber
发明人： Venugopalan Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Meg Walraed-Sullivan , Edward P. Wobber
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30575
摘要： A distributed system includes full and partial replicas of a set of data items that may be inserted, modified, or deleted by any replica. Replicas may occasionally synchronize with other arbitrarily chosen replicas to learn about updates. A replica's knowledge includes one or more knowledge fragments, where each fragment indicates a set of items. A type of knowledge fragment, called a star knowledge fragment, contains versions associated with all items in the system. Star knowledge fragments are compact because the set of items stored at a replica need not be explicitly listed. Once all replicas know of all updates in the system, partial and full replicas will have the same compact star knowledge fragment.
摘要翻译：分布式系统包括可以由任何副本插入，修改或删除的一组数据项的完整和部分副本。副本可能偶尔与其他任意选择的副本进行同步，以了解更新。副本的知识包括一个或多个知识片段，其中每个片段指示一组项目。称为星型知识片段的知识片段类型包含与系统中所有项目相关联的版本。明星知识片段是紧凑的，因为存储在副本中的项目集不需要被明确列出。一旦所有副本都知道系统中的所有更新，部分和完全副本将具有相同的紧凑型星级知识片段。

3. 发明授权

US07689780B2 Adaptive granularity refinement in detecting potential data races 失效
标题翻译：检测潜在数据竞赛中的自适应粒度优化
公开(公告)号：US07689780B2
公开(公告)日：2010-03-30
申请号：US11696809
申请日：2007-04-05
申请人： Thomas L. Rodeheffer , Yuan Yu
发明人： Thomas L. Rodeheffer , Yuan Yu
IPC分类号： G06F13/00
CPC分类号： G06F9/526 , G06F2209/523
摘要： A method and apparatus are provided for detecting data races that overcome the limitations of the prior art. In some embodiments, this is accomplished by detecting a first access to an object, determining whether the first access is associated with a suspicious pattern, automatically refining a pattern detection granularity from the object to a memory location within the object if a determination is made that the first access is associated with the suspicious pattern, and reporting the data race if a second access associated with the suspicious pattern occurs at the memory location after the pattern detection granularity is refined.
摘要翻译：提供了一种用于检测克服现有技术限制的数据竞赛的方法和装置。在一些实施例中，这是通过检测对对象的第一访问，确定第一访问是否与可疑模式相关联来实现的，如果确定所述对象中的模式检测粒度被自动地从对象改进到对象内的存储器位置，则确定第一访问与可疑模式相关联，并且如果在模式检测粒度被细化之后在存储器位置发生与可疑模式相关联的第二访问，则报告数据竞争。

4. 发明申请

US20090006489A1 HIERARCHICAL SYNCHRONIZATION OF REPLICAS 审中-公开
标题翻译： REPLICAS的分层同步
公开(公告)号：US20090006489A1
公开(公告)日：2009-01-01
申请号：US11771273
申请日：2007-06-29
申请人： Venugopalan Saraswati Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Edward P. Wobber
发明人： Venugopalan Saraswati Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Edward P. Wobber
IPC分类号： G06F17/30
CPC分类号： H04L67/1095 , G06F16/1787 , G06F16/184 , G06F16/27
摘要： A hierarchical system is disclosed for synchronizing partially-replicated collections that provides guaranteed paths of information to all replicas in a collection. Each partial replica is assigned a parent replica to act as a proxy on its behalf, and with which the replica synchronizes regularly. Each parent replica is responsible for one or more child replicas. Parent replicas have filters which are either the same as, or more inclusive than, their child replicas, and parent replicas thus store and synchronize all objects that are of interest to their one or more child replicas.
摘要翻译：公开了一种分层系统，用于同步部分复制的集合，其向集合中的所有副本提供有保障的信息路径。每个部分副本被分配一个父副本以代表其代理，并且副本经常同步。每个父副本都负责一个或多个子副本。父副本具有与其子副本相同或更多的过滤器，并且父副本因此存储和同步其一个或多个子副本感兴趣的所有对象。

5. 发明授权

US5260945A Intermittent component failure manager and method for minimizing disruption of distributed computer system 失效
标题翻译：间歇性组件故障管理器和最小化分布式计算机系统中断的方法
公开(公告)号：US5260945A
公开(公告)日：1993-11-09
申请号：US721143
申请日：1991-06-26
申请人： Thomas L. Rodeheffer
发明人： Thomas L. Rodeheffer
IPC分类号： H04L12/28 , H04L12/44 , H04L12/56 , G06F11/20
CPC分类号： H04L45/00 , H04L12/28 , H04L43/0817 , H04L45/02 , H04L45/16 , H04L45/28 , H04L45/48 , H04L2012/445 , H04L41/0681 , H04L49/351 , H04L49/555
摘要： In a distributed computer system having components which may fail intermittently, a fault monitor, coupled to one component, detects whether that component is working. Whenever the fault monitor detects that the component has failed, i.e., changed from working to broken status, the status filter transmits without delay a "broken" signal. Whenever the fault monitor detects that the component has changed from broken to working status, however, the status filter transmits a "working" signal only after a recovery time interval corresponding to a computed skepticism level, and only if the component does not fail during that recovery time interval. The status filter increases the computed skepticism level, and redetermines the recovery time interval in accordance therewith, each time that the component fails after the status filter has transmitted a "working" signal. The status filter decreases the computed skepticism level, and redetermines the recovery time interval in accordance therewith, when, after the status filter has transmitted a "working" signal, the component does not fail for at least a defined interval of time.
摘要翻译：在具有可能间歇性故障的组件的分布式计算机系统中，耦合到一个组件的故障监视器检测该组件是否正在工作。每当故障监视器检测到组件发生故障，即从工作状态变为故障状态时，状态过滤器将不间断地发送“断开”信号。然而，每当故障监视器检测到组件已经从断开状态变为工作状态时，状态过滤器仅在与计算机怀疑级别相对应的恢复时间间隔之后才发送“工作”信号，并且只有在组件在该时间段内不会失败恢复时间间隔。状态过滤器增加了计算的怀疑级别，并且每当该状态过滤器发送“工作”信号之后该组件发生故障时，根据其重新确定恢复时间间隔。状态过滤器减少计算的怀疑级别，并根据其重新确定恢复时间间隔，当状态过滤器发送“工作”信号之后，组件至少在一定时间间隔内不会失败。

6. 发明授权

US09270484B2 Data center network using circuit switching 有权
标题翻译：数据中心网使用电路交换
公开(公告)号：US09270484B2
公开(公告)日：2016-02-23
申请号：US13355575
申请日：2012-01-23
申请人： Charles P. Thacker , Andreas G. Nowatzyk , Fang Yu , Thomas L. Rodeheffer
发明人： Charles P. Thacker , Andreas G. Nowatzyk , Fang Yu , Thomas L. Rodeheffer
IPC分类号： H04L12/437 , H04L12/24 , H04L12/931 , H04L12/913
CPC分类号： H04L12/437 , H04L41/0823 , H04L41/0893 , H04L41/0896 , H04L47/724 , H04L49/356
摘要： A circuit-based digital communications network is provided for a large data center environment that utilizes circuit switching in lieu of packet switching in order to lower the cost of the network and to gain performance efficiencies. A method for transmitting data in such a network comprises sending a setup request for a path for transmitting the data to a destination node and then speculatively sending the data to the destination node before the setup request is completed.
摘要翻译：基于电路的数字通信网络被提供用于大数据中心环境，其利用电路交换来代替分组交换，以降低网络的成本并获得性能效率。一种用于在这样的网络中发送数据的方法包括向目的地节点发送用于发送数据的路径的建立请求，然后在建立请求完成之前将数据推测性地发送到目的地节点。

7. 发明授权

US07685185B2 Move-in/move-out notification for partial replica synchronization 有权
标题翻译：部分复制同步的移入/移出通知
公开(公告)号：US07685185B2
公开(公告)日：2010-03-23
申请号：US11771153
申请日：2007-06-29
申请人： Venugopalan Saraswati Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Edward P. Wobber
发明人： Venugopalan Saraswati Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Edward P. Wobber
IPC分类号： G06F17/00
CPC分类号： G06F17/30575 , G06F17/30176
摘要： A system is disclosed for synchronizing partially-replicated collections using the concept of item-set knowledge and move-out notifications. Move-out notifications are provided to allow removal of changed items from replicas when the change in the item takes that item outside of the interest set of the replicas.
摘要翻译：公开了一种用于使用项目集知识和移出通知的概念同步部分复制集合的系统。提供移出通知，以便当项目的更改将该项目置于副本的兴趣集之外时，从副本中删除已更改的项目。

8. 发明申请

US20090006495A1 MOVE-IN/MOVE-OUT NOTIFICATION FOR PARTIAL REPLICA SYNCHRONIZATION 有权
标题翻译：部分替代同步的移入/移出通知
公开(公告)号：US20090006495A1
公开(公告)日：2009-01-01
申请号：US11771153
申请日：2007-06-29
申请人： Venugopalan Saraswati Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Edward P. Wobber
发明人： Venugopalan Saraswati Ramasubramanian , Thomas L. Rodeheffer , Douglas B. Terry , Edward P. Wobber
IPC分类号： G06F17/30
CPC分类号： G06F17/30575 , G06F17/30176
摘要： A system is disclosed for synchronizing partially-replicated collections using the concept of item-set knowledge and move-out notifications. Move-out notifications are provided to allow removal of changed items from replicas when the change in the item takes that item outside of the interest set of the replicas.
摘要翻译：公开了一种用于使用项目集知识和移出通知的概念同步部分复制集合的系统。提供移出通知，以便当项目的更改将该项目置于副本的兴趣集之外时，从副本中删除已更改的项目。

9. 发明申请

US20080162589A1 WEAKLY-CONSISTENT DISTRIBUTED COLLECTION COMPROMISED REPLICA RECOVERY 审中-公开
标题翻译：轻微一致的分发收集复制恢复
公开(公告)号：US20080162589A1
公开(公告)日：2008-07-03
申请号：US11618090
申请日：2006-12-29
申请人： Thomas L. Rodeheffer , Edward P. Wobber , Douglas Terry , Venugopalan Ramasubramanian Saraswati
发明人： Thomas L. Rodeheffer , Edward P. Wobber , Douglas Terry , Venugopalan Ramasubramanian Saraswati
IPC分类号： G06F17/30 , G06F12/00 , G06F17/00
CPC分类号： G06F21/6218 , G06F11/1469 , G06F11/2094 , G06F2221/2151
摘要： A system is disclosed for recovery from a compromise of a replica in a weakly-consistent distributed collection. The system employs a collection manager for revoking a compromised replica, and one or more archival replicas for storing time-stamped versions. Upon a compromise, versions tainted by the compromised replica may be expunged from the collection. Thereafter, versions determined to be unaffected by the compromise may be returned to the collection using the time-stamped versions stored in the one or more archival replicas.
摘要翻译：公开了一种系统，用于从弱一致的分布式集合中的副本的折中恢复。系统采用收集管理器撤销受损的副本，以及一个或多个归档副本，用于存储时间戳的版本。妥协之后，受损副本所污染的版本可能会从集合中清除。此后，确定不受折衷影响的版本可以使用存储在一个或多个归档副本中的时间戳版本返回到收集。

10. 发明申请

US20130188486A1 DATA CENTER NETWORK USING CIRCUIT SWITCHING 有权
标题翻译：数据中心网络使用电路切换
公开(公告)号：US20130188486A1
公开(公告)日：2013-07-25
申请号：US13355575
申请日：2012-01-23
申请人： Charles P. Thacker , Andreas G. Nowatzyk , Fang Yu , Thomas L. Rodeheffer
发明人： Charles P. Thacker , Andreas G. Nowatzyk , Fang Yu , Thomas L. Rodeheffer
IPC分类号： H04L12/50 , H04L12/26
CPC分类号： H04L12/437 , H04L41/0823 , H04L41/0893 , H04L41/0896 , H04L47/724 , H04L49/356
摘要： A circuit-based digital communications network is provided for a large data center environment that utilizes circuit switching in lieu of packet switching in order to lower the cost of the network and to gain performance efficiencies. A method for transmitting data in such a network comprises sending a setup request for a path for transmitting the data to a destination node and then speculatively sending the data to the destination node before the setup request is completed.
摘要翻译：基于电路的数字通信网络被提供用于大数据中心环境，其利用电路交换来代替分组交换，以降低网络的成本并获得性能效率。一种用于在这样的网络中发送数据的方法包括向目的地节点发送用于发送数据的路径的建立请求，然后在建立请求完成之前将数据推测性地发送到目的地节点。

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