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1. 发明授权

US08346909B2 Method for supporting transaction and parallel application workloads across multiple domains based on service level agreements 失效
标题翻译：基于服务级别协议支持跨多个域的事务和并行应用程序工作负载的方法
公开(公告)号：US08346909B2
公开(公告)日：2013-01-01
申请号：US10763135
申请日：2004-01-22
申请人： Asit Dan , Daniel Manuel Dias , Richard Pervin King , Avraham Leff , James Thomas Rayfield , Noshir Cavas Wadia
发明人： Asit Dan , Daniel Manuel Dias , Richard Pervin King , Avraham Leff , James Thomas Rayfield , Noshir Cavas Wadia
IPC分类号： G06F15/173
CPC分类号： G06F9/5083 , H04L41/5009 , H04L67/1008 , H04L67/1025 , H04L67/325
摘要： An on-demand manager provides an improved distributed data processing system for facilitating dynamic allocation of computing resources among multiple domains based on a current workload and service level agreements. Based on a service level agreement, the on-demand manager monitors and predicts the load on the system. If the current or predicted load cannot be handled with the current system configuration, the on-demand manager determines additional resources needed to handle the workload. If the service level agreement violations cannot be handled by reconfiguring resources at a domain, the on-demand manager sends a resource request to other domains. These other domains analyze their own commitments and may accept the resource request, reject the request, or counter-propose with an offer of resources and a corresponding service level agreement. Once the requesting domain has acquired resources, workload load balancers are reconfigured to allocate some of the workload from the requesting site to the acquired remote resources.
摘要翻译：按需管理器提供改进的分布式数据处理系统，用于基于当前工作负载和服务级别协议来促进多个域之间的计算资源的动态分配。根据服务级别协议，按需管理器监视和预测系统上的负载。如果当前或预测的负载不能用当前系统配置来处理，则按需管理器确定处理工作负载所需的额外资源。如果通过在域上重新配置资源不能处理服务级别协议违规，则按需管理器向其他域发送资源请求。这些其他领域分析自己的承诺，并可以接受资源请求，拒绝请求或反提出资源提议和相应的服务级别协议。一旦请求域已经获得资源，工作负载平衡器被重新配置以将一些工作负载从请求站点分配给所获取的远程资源。

2. 发明授权

US5805785A Method for monitoring and recovery of subsystems in a distributed/clustered system 失效
标题翻译：在分布式/集群系统中监视和恢复子系统的方法
公开(公告)号：US5805785A
公开(公告)日：1998-09-08
申请号：US606765
申请日：1996-02-27
申请人： Daniel Manuel Dias , Richard Pervin King , Avraham Leff
发明人： Daniel Manuel Dias , Richard Pervin King , Avraham Leff
IPC分类号： G06F11/14 , G06F11/00
CPC分类号： G06F11/1438
摘要： A system and method for a general and extensible infrastructure providing monitoring and recovery of interdependent systems in a distributed/clustered system is disclosed. Subsystems, built without provision for high availability, are incorporated into the infrastructure without modification to core subsystem function. The infrastructure is comprised of one or more computing nodes connected by one or more interconnection networks, and running one or more distributed subsystems. The infrastructure monitors the computing nodes using one or more heartbeat and membership protocols, and monitors the said distributed subsystems by subsystem-specific monitors. Events detected by monitors are sent to event handlers. Event handlers process events by filtering them through activities such as event correlation, removal of duplicates, and rollup. Filtered events are given by Event Managers to Recovery Drivers which determine the recovery program corresponding to the event, and executing the recovery program or set of recovery actions by coordination among the recovery managers. Given failures of said event handlers or recovery managers, the infrastructure performs the additional steps of: coordinating among remaining event handlers and recovery managers to handle completion or termination of ongoing recovery actions, discovering the current state of the system by resetting the said monitors, and handling any new failure events that may have occurred in the interim.
摘要翻译：公开了一种用于在分布式/集群系统中提供相互依赖系统的监视和恢复的通用和可扩展基础设施的系统和方法。没有为高可用性提供配置的子系统被并入基础设施，而不改变核心子系统功能。基础设施由一个或多个由一个或多个互连网络连接的计算节点组成，并运行一个或多个分布式子系统。基础设施使用一个或多个心跳和成员资格协议监视计算节点，并通过子系统监视器来监视所述分布式子系统。监视器检测到的事件将发送到事件处理程序。事件处理程序通过过滤事件来处理事件，例如事件关联，删除重复项和汇总。已过滤的事件由事件管理器提供给恢复驱动程序，其确定与事件相对应的恢复程序，以及通过恢复管理器之间的协调来执行恢复程序或一组恢复操作。鉴于所述事件处理程序或恢复管理器的故障，基础架构执行以下附加步骤：在剩余事件处理程序和恢复管理器之间进行协调以处理正在进行的恢复操作的完成或终止，通过重置所述监视器来发现系统的当前状态，以及处理可能在过渡期间发生的任何新的故障事件。

3. 发明授权

US08880549B2 Concurrent database access by production and prototype applications 有权
标题翻译：通过生产和原型应用程序并发数据库访问
公开(公告)号：US08880549B2
公开(公告)日：2014-11-04
申请号：US12615252
申请日：2009-11-09
申请人： Avraham Leff , James T. Rayfield
发明人： Avraham Leff , James T. Rayfield
IPC分类号： G06F7/00 , G06F17/00 , G06F17/30
CPC分类号： G06F17/3056
摘要： A database manager, computer program product and methods for managing a database utilized by multiple applications. In one embodiment, the database manager performs a database record change to database records by a first application. The database manager branches the database records such that the database record change is visible to the first application and is not visible to one or more other applications accessing the database. The database manager can merge database record changes made by the other applications such that database schema changes made by the other applications are visible to the first application.
摘要翻译：数据库管理器，用于管理由多个应用程序使用的数据库的计算机程序产品和方法。在一个实施例中，数据库管理器通过第一应用执行对数据库记录的数据库记录更改。数据库管理器分支数据库记录，使得数据库记录更改对于第一个应用程序可见，对于访问数据库的一个或多个其他应用程序不可见。数据库管理器可以合并其他应用程序所做的数据库记录更改，使其他应用程序所做的数据库模式更改对第一个应用程序可见。

4. 发明授权

US08250112B2 Constructing declarative componentized applications 失效
标题翻译：构造声明化组件化应用程序
公开(公告)号：US08250112B2
公开(公告)日：2012-08-21
申请号：US12486252
申请日：2009-06-17
申请人： Avraham Leff , James Thomas Rayfield
发明人： Avraham Leff , James Thomas Rayfield
IPC分类号： G06F17/00
CPC分类号： G06F8/38
摘要： Techniques for constructing a software application are provided. A data model of the application is represented as a relational model. Control logic of the application is defined to specify each of a plurality of operations of the application as a mapping from a current state of the application data model and one or more current application inputs to a new state of the application data model and one or more application outputs, described by one or more relational algebra operations selected from the group consisting of a relation-complement operation, a disjunction operation and a conjunction operation.
摘要翻译：提供了构建软件应用程序的技术。应用程序的数据模型表示为关系模型。应用程序的控制逻辑被定义为将应用程序的多个操作中的每一个指定为从应用数据模型的当前状态和一个或多个当前应用输入到应用数据模型的新状态和一个或多个应用输出，由从关系互补操作，分离操作和连接操作组成的组中选择的一个或多个关系代数操作描述。

5. 发明申请

US20120191761A1 CONSTRUCTING DECLARATIVE COMPONENTIZED APPLICATIONS 有权
标题翻译：构建声明相关的应用程序
公开(公告)号：US20120191761A1
公开(公告)日：2012-07-26
申请号：US13431538
申请日：2012-03-27
申请人： Avraham Leff , James Thomas Rayfield
发明人： Avraham Leff , James Thomas Rayfield
IPC分类号： G06F7/00
CPC分类号： G06F8/38
摘要： Techniques for constructing a software application are provided. A data model of the application is represented as a relational model. Control logic of the application is defined to specify each of a plurality of operations of the application as a mapping from a current state of the application data model and one or more current application inputs to a new state of the application data model and one or more application outputs, described by one or more relational algebra operations selected from the group consisting of a relation-complement operation, a disjunction operation and a conjunction operation.
摘要翻译：提供了构建软件应用程序的技术。应用程序的数据模型表示为关系模型。应用程序的控制逻辑被定义为将应用程序的多个操作中的每一个指定为从应用数据模型的当前状态和一个或多个当前应用输入到应用数据模型的新状态和一个或多个应用输出，由从关系互补操作，分离操作和连接操作组成的组中选择的一个或多个关系代数操作描述。

6. 发明申请

US20070185920A1 Method and system combining state replication and operational-replay synchronization 有权
标题翻译：方法和系统结合状态复制和操作重放同步
公开(公告)号：US20070185920A1
公开(公告)日：2007-08-09
申请号：US11337393
申请日：2006-01-23
申请人： Paul Castro , Ravindranath Konuru , Avraham Leff , James Rayfield , Danny Yeh
发明人： Paul Castro , Ravindranath Konuru , Avraham Leff , James Rayfield , Danny Yeh
IPC分类号： G06F17/30
CPC分类号： G06F17/30578 , Y10S707/99952
摘要： A system, method and computer program product for synchronizing replicas of shared data structures associated with one or more computer systems. The method comprises: evaluating a metric for performing a replica synchronization operation on a first computer system according to a first synchronization method; evaluating the metric for performing a replica synchronization operation on the first computer system according to a second synchronization method; and, selecting, at synchronization time, based on the evaluated metric, whether to use the first or second synchronization methods, and communicating a command to a second computer system to replicate a shared data structure based on the selected synchronization method.
摘要翻译：一种用于同步与一个或多个计算机系统相关联的共享数据结构的副本的系统，方法和计算机程序产品。该方法包括：根据第一同步方法评估在第一计算机系统上执行复制同步操作的度量; 根据第二同步方法评估在所述第一计算机系统上执行副本同步操作的度量; 以及在同步时间，基于所评估的度量来选择是使用所述第一还是第二同步方法，以及基于所选择的同步方法将命令传送到第二计算机系统以复制共享数据结构。

7. 发明授权

US07827135B2 Method and apparatus for relaxed transactional isolation in a client-server caching architecture 有权
标题翻译：客户端 - 服务器缓存架构中轻松的事务隔离的方法和设备
公开(公告)号：US07827135B2
公开(公告)日：2010-11-02
申请号：US10334320
申请日：2002-12-31
申请人： Avraham Leff , James Thomas Rayfield
发明人： Avraham Leff , James Thomas Rayfield
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30351 , Y10S707/955
摘要： Techniques are provided which enable relaxed transactional isolation and optimistic concurrency control in a distributed client-server architecture, and which address the problems of server overloading and network delays known to exist in conventional distributed client-server architectures. In particular, the invention preferably provides client-side caching techniques which advantageously serve to reduce server overloading and effects of network delay.
摘要翻译：提供了技术，其实现了在分布式客户机 - 服务器架构中的轻松的事务隔离和乐观并发控制，并且解决了传统分布式客户端 - 服务器体系结构中已知存在的服务器重载和网络延迟的问题。具体地，本发明优选地提供有利地用于减少服务器超载和网络延迟的影响的客户端缓存技术。

8. 发明申请

US20090254584A1 Methods and Apparatus for Constructing Declarative Componentized Applications 失效
标题翻译：构建声明组件化应用程序的方法和装置
公开(公告)号：US20090254584A1
公开(公告)日：2009-10-08
申请号：US12486252
申请日：2009-06-17
申请人： Avraham Leff , James Thomas Rayfield
发明人： Avraham Leff , James Thomas Rayfield
IPC分类号： G06F17/30
CPC分类号： G06F8/38
摘要： Techniques for constructing a software application are provided. A data model of the application is represented as a relational model. Control logic of the application is defined to specify each of a plurality of operations of the application as a mapping from a current state of the application data model and one or more current application inputs to a new state of the application data model and one or more application outputs, described by one or more relational algebra operations selected from the group consisting of a relation-complement operation, a disjunction operation and a conjunction operation.
摘要翻译：提供了构建软件应用程序的技术。应用程序的数据模型表示为关系模型。应用程序的控制逻辑被定义为将应用程序的多个操作中的每一个指定为从应用数据模型的当前状态和一个或多个当前应用输入到应用数据模型的新状态和一个或多个应用输出，由从关系互补操作，分离操作和连接操作组成的组中选择的一个或多个关系代数操作描述。

9. 发明申请

US20090228440A1 SYSTEM AND METHOD FOR FILTERING DATABASE RESULTS USING DYNAMIC COMPOSITE QUERIES 有权
标题翻译：使用动态复合查询过滤数据库结果的系统和方法
公开(公告)号：US20090228440A1
公开(公告)日：2009-09-10
申请号：US12044395
申请日：2008-03-07
申请人： Avraham Leff , James T. Rayfield , Timo J. Salo , Brandon J.W. Smith
发明人： Avraham Leff , James T. Rayfield , Timo J. Salo , Brandon J.W. Smith
IPC分类号： G06F7/06
CPC分类号： G06F17/30424 , G06F21/6227
摘要： A method, system and computer program product for retrieving data records to a client computer. An identifier of a base query is received from the client computer. The base query is configured to select a set of data records from a database that the client computer has permission to access. A modifying clause is also received from the client computer. The modifying clause comprises a directive restricting the set of data records to a subset of data records. The modifying clause may optionally comprise an expression for sorting. A combined query is generated from the base query and the modifying clause. The query is configured to return the subset of data records. The combined query is further configured to sort the subset of data records based on the value of the expression if the expression is present. The combined query is executed at the database.
摘要翻译：一种用于将数据记录检索到客户端计算机的方法，系统和计算机程序产品。从客户端计算机接收到基本查询的标识符。基本查询配置为从客户端计算机具有访问权限的数据库中选择一组数据记录。还从客户端计算机接收修改子句。修改子句包括将数据记录集合限制到数据记录的子集的指令。修改子句可以可选地包括用于排序的表达式。从基本查询和modify子句生成组合查询。该查询被配置为返回数据记录的子集。组合查询还被配置为如果表达式存在，则基于表达式的值对数据记录的子集进行排序。组合查询在数据库中执行。

10. 发明申请

US20080126376A1 ENABLING MULTI-VIEW APPLICATIONS BASED ON A RELATIONAL STATE MACHINE PARADIGM 审中-公开
标题翻译：基于相关状态机器参数实现多视图应用
公开(公告)号：US20080126376A1
公开(公告)日：2008-05-29
申请号：US11534299
申请日：2006-09-22
申请人： Avraham Leff , James T. Rayfield
发明人： Avraham Leff , James T. Rayfield
IPC分类号： G06F7/00
CPC分类号： G06F8/35 , G06F8/65
摘要： A method and apparatus for constructing a software application with a plurality of screens. Operations performed in the method include representing a data model of the computer application as a relational model, providing a first screen of the computer application representing a current state of the data model, using relational algebra to define control logic of the computer application as a mapping from the current state of the data model and zero or more current application inputs to a new state of the data model and zero or more application outputs, using relational algebra to specify the selection of a second screen as a function of the current state of the data model and zero or more current application inputs, and generating computer executable code displaying the first screen and the second screen on a display.
摘要翻译：一种用于构建具有多个屏幕的软件应用程序的方法和装置。在该方法中执行的操作包括将计算机应用的数据模型表示为关系模型，使用关系代数将计算机应用的控制逻辑定义为映射，提供表示数据模型的当前状态的计算机应用的第一屏幕从数据模型的当前状态和零个或多个当前应用输入到数据模型的新状态和零个或多个应用输出，使用关系代数来指定作为第二屏幕的当前状态的函数的第二屏幕的选择数据模型和零个或多个当前应用输入，以及在显示器上生成显示第一屏幕和第二屏幕的计算机可执行代码。

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