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1. 发明授权

US5933639A System and method for debugging distributed programs 失效
标题翻译：用于调试分布式程序的系统和方法
公开(公告)号：US5933639A
公开(公告)日：1999-08-03
申请号：US650926
申请日：1996-05-17
申请人： Michael Stephen Meier , Kevan Lee Miller , Donald Philip Pazel , Josyula Ramachandra Rao , James Robert Russell
发明人： Michael Stephen Meier , Kevan Lee Miller , Donald Philip Pazel , Josyula Ramachandra Rao , James Robert Russell
IPC分类号： G06F11/36 , G06F15/20
CPC分类号： G06F11/362
摘要： This invention provides a small and efficient set of primitives for debugging a distributed application that runs on a plurality of processors connected by a common network. These primitives permit a user to debug a distributed application in a manner similar to debugging a non-distributed application. The invention allows a user to step into and return from a remote procedure call in exactly the same manner as a local procedure call. The invention also allow a user to set breakpoints in a server for specific clients and to specify conditions under which a particular remote call from a client should trap in a server. These capabilities greatly simplify the process of debugging distributed applications such as client-server programs.
摘要翻译：本发明提供了一种用于调试在由公共网络连接的多个处理器上运行的分布式应用的小而有效的原语集合。这些原语允许用户以类似于调试非分布式应用程序的方式调试分布式应用程序。本发明允许用户以与本地过程调用完全相同的方式进入远程过程调用并返回。本发明还允许用户为特定客户端设置服务器中的断点，并且指定来自客户端的特定远程呼叫应该陷入服务器的条件。这些功能大大简化了调试分布式应用程序（如客户端 - 服务器程序）的过程。

2. 发明授权

US06425016B1 System and method for providing collaborative replicated objects for synchronous distributed groupware applications 失效
标题翻译：用于为同步分布式组件应用程序提供协作复制对象的系统和方法
公开(公告)号：US06425016B1
公开(公告)日：2002-07-23
申请号：US08863782
申请日：1997-05-27
申请人： Guruduth Somasekhara Banavar , Kevan Lee Miller , Atul Prakash , Robert Evan Strom , Michael James Ward
发明人： Guruduth Somasekhara Banavar , Kevan Lee Miller , Atul Prakash , Robert Evan Strom , Michael James Ward
IPC分类号： G06F900
CPC分类号： G06Q10/00
摘要： A system and method featuring a collection of model objects which hold data to be shared, and supporting interfaces to read and write the data, to create and destroy collaboration relationships and to attach “view objects” containing application code which will be automatically notified of value changes. Each user environment is provided with a model object control entity, referred to herein as a Collaboration Manager, which creates model objects, executes transactions, and creates association objects related to the collaboration. A concurrency control mechanism records the reads and updates of the data and of collaboration relationships within a single transaction site and guarantees that they are applied atomically and consistently to both the local and to all remote replica objects of the collaboration.
摘要翻译：一种系统和方法，其特征在于包含要共享的数据的模型对象的集合，以及支持用于读取和写入数据的接口，以创建和销毁协作关系并附加包含将被自动通知值的应用代码的“视图对象” 变化。为每个用户环境提供了一个模型对象控制实体，这里称为协作管理器，其创建模型对象，执行事务以及创建与该协作相关的关联对象。并发控制机制将单个事务站点内的数据和协作关系的读取和更新记录在一起，并保证将它们原子地和一致地应用于协作的本地和所有远程副本对象。

3. 发明授权

US07050432B1 Message logging for reliable multicasting across a routing network 失效
标题翻译：通过路由网络进行可靠组播的消息记录
公开(公告)号：US07050432B1
公开(公告)日：2006-05-23
申请号：US09281421
申请日：1999-03-30
申请人： Guruduth Somasekhara Banavar , Tushar Deepak Chandra , Kevan Lee Miller , Robert Evan Strom , Daniel Charles Sturman , Michael James Ward
发明人： Guruduth Somasekhara Banavar , Tushar Deepak Chandra , Kevan Lee Miller , Robert Evan Strom , Daniel Charles Sturman , Michael James Ward
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/1868 , H04L12/1895 , H04L67/26 , H04L67/327
摘要： A technique for reliably multicasting a message within a router network is provided. At least one special router in the network has associated persistent storage for logging a message being routed to one or more clients. When a message is received at this logger node, the logger places the message in persistent storage and sends a logging acknowledgment back to those routers to which the message was originally routed, as well as back towards the source of the message. The logger acknowledgment includes the message id, the logger id, and a logging number. When the logger acknowledgment is received by a router, it looks up the routing information from the original message, and sends the acknowledgment to those neighboring routers to which the original message was sent, excluding the link from which the logger acknowledgment was received. If the original message corresponding to the logger acknowledgment was buffered at this router waiting to be delivered, the message is then delivered to its client nodes. Processes for recovering from node or link failure within the router network, and for at most once delivery of messages, at least once delivery of messages, and exactly once delivery of messages are also provided.
摘要翻译：提供了一种在路由器网络内可靠地组播消息的技术。网络中至少有一个特殊路由器具有关联的持久存储器，用于记录被路由到一个或多个客户端的消息。当在此记录器节点接收到消息时，记录器将消息放置在持久存储器中，并将记录确认发送回消息最初路由到的那些路由器，并返回消息的源。记录器确认包括消息标识，记录器ID和日志记录号。当路由器接收到记录器确认时，它将从原始消息中查找路由信息，并将确认发送给发送原始消息的相邻路由器，不包括接收到记录器确认的链路。如果与该记录器确认相对应的原始消息在等待传送的路由器中被缓冲，则该消息被传送到其客户机节点。还提供了用于从路由器网络内的节点或链路故障恢复的过程，以及至少一次传送消息，至少一次传送消息，以及一次传送消息。

4. 发明授权

US06988270B2 System and method for providing collaborative replicated objects for synchronous distributed groupware application 失效
标题翻译：为同步分布式组件应用程序提供协同复制对象的系统和方法
公开(公告)号：US06988270B2
公开(公告)日：2006-01-17
申请号：US10134228
申请日：2002-04-26
申请人： Guruduth Somasekhara Banavar , Kevan Lee Miller , Atul Prakash , Robert Evan Strom , Michael James Ward
发明人： Guruduth Somasekhara Banavar , Kevan Lee Miller , Atul Prakash , Robert Evan Strom , Michael James Ward
IPC分类号： G06F9/46
CPC分类号： G06Q10/00
摘要： A system and method featuring a collection of model objects which hold data to be shared, and supporting interfaces to read and write the data, to create and destroy collaboration relationships and to attach “view objects” containing application code which will be automatically notified of value changes. Each user environment is provided with a model object control entity, referred to herein as a Collaboration Manager, which creates model objects, executes transactions, and creates association objects related to the collaboration. A concurrency control mechanism records the reads and updates of the data and of collaboration relationships within a single transaction site and guarantees that they are applied atomically and consistently to both the local and to all remote replica objects of the collaboration.
摘要翻译：一种系统和方法，其特征在于包含要共享的数据的模型对象的集合，以及支持用于读取和写入数据的接口，以创建和销毁协作关系并附加包含将被自动通知值的应用代码的“视图对象” 变化。为每个用户环境提供了一个模型对象控制实体，这里称为协作管理器，其创建模型对象，执行事务以及创建与该协作相关的关联对象。并发控制机制将单个事务站点内的数据和协作关系的读取和更新记录在一起，并保证将它们原子地和一致地应用于协作的本地和所有远程副本对象。

5. 发明授权

US06952829B1 Dynamically adapting between pessimistic and optimistic notifications to replicated objects 失效
标题翻译：动态地适应悲观和乐观通知的复制对象
公开(公告)号：US06952829B1
公开(公告)日：2005-10-04
申请号：US09106166
申请日：1998-06-29
申请人： Guruduth Somasekhara Banavar , Kevan Lee Miller , Michael James Ward
发明人： Guruduth Somasekhara Banavar , Kevan Lee Miller , Michael James Ward
IPC分类号： G06F3/00 , H04L29/08
CPC分类号： H04L67/1095
摘要： An adaptive view mechanism can dynamically adapt to changing conditions and provide the benefits of both optimistic and pessimistic notifications. This can, for example, provide a consistent and jitter-free GUI to display the state of distributed replicated data objects in the presence of concurrency control conflicts and losses. In a Model-View-Controller architecture of building distributed collaborative applications where model objects are replicated at distributed sites, adaptive views can dynamically switch between behaving like pessimistic views and like optimistic views. When the number of concurrent updates is low, the adaptive views can be made to operate in an optimistic mode—providing good responsiveness to users. However, during those periods of heavy activity, when the number of concurrent updates becomes high, the adaptive view can be made to operate in a pessimistic manner—providing more reliable response to users. For each adaptive view, a programmer can specify a policy object that can monitor the prevailing conflict rate and loss rate as if the adaptive view were behaving optimistically. Using these rates, the policy object can apply arbitrary application logic or thresholds to determine whether it is beneficial for the adaptive view to behave optimistically or pessimistically. The policy object can then request the adaptive view to dynamically adapt its behavior to the appropriate manner. In general however, the dynamic switching can be based on any application specific request to switch modes. Distributed sites that have replicated copies of the same model object can view the replica heterogeneously, that is, pessimistically, optimistically, or adaptively, according to the user's requirements.
摘要翻译：适应性观察机制可以动态地适应不断变化的条件，并提供乐观和悲观通知的好处。例如，这可以提供一致且无抖动的GUI来在存在并发控制冲突和损失的情况下显示分布式复制数据对象的状态。在构建分布式协作应用程序的模型 - 视图 - 控制器体系结构中，其中模型对象在分布式站点进行复制，自适应视图可以在行为像悲观视图之间动态切换，并且像乐观视图一样。当并发更新次数低时，可以使自适应视图以乐观模式运行，从而为用户提供良好的响应。然而，在这些繁重活动期间，当并发更新次数变高时，可以使自适应视图以悲观的方式运行 - 为用户提供更可靠的响应。对于每个自适应视图，程序员可以指定一个策略对象，该对象可以监视当前的冲突率和丢失率，就好像自适应视图行为乐观一样。使用这些速率，策略对象可以应用任意应用程序逻辑或阈值来确定自适应视图是否有利于行为乐观或悲观。然后，策略对象可以请求自适应视图以适当的方式动态地调整其行为。然而，一般来说，动态切换可以基于任何特定于切换模式的特定请求。具有相同模型对象的复制副本的分布式站点可以根据用户的要求，不同地，即悲观地，乐观地或自适应地查看副本。

6. 发明授权

US06907011B1 Quiescent reconfiguration of a routing network 失效
标题翻译：路由网络的静态重配置
公开(公告)号：US06907011B1
公开(公告)日：2005-06-14
申请号：US09282101
申请日：1999-03-30
申请人： Kevan Lee Miller , Robert Evan Strom , Daniel Charles Sturman , Michael James Ward
发明人： Kevan Lee Miller , Robert Evan Strom , Daniel Charles Sturman , Michael James Ward
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , H04L12/56
CPC分类号： H04L45/02 , H04L45/306
摘要： Reconfiguration of a continuously available routing network of a publish/subscribe system is achieved by quiescing data messages and control messages within the routing network to preserve first-in first-out ordering thereof, and then, reconfiguring the quiesced routing network. This reconfiguration technique is particularly applicable to a routing network having at least one special node comprising one of a logger node or a sequencer node, wherein the logger node is used to store a message to persistent storage within the routing network prior to delivery of the message to one or more clients, and the sequencer sequences a message with other messages received by the network prior to delivery thereof for ordered delivery of the messages to one or more clients of the network.
摘要翻译：发布/订阅系统的连续可用的路由网络的重新配置通过使数据消息静态并且在路由网络内控制消息来实现，以保持先入先出的排序，然后重新配置静态路由网络。这种重新配置技术特别适用于具有包括记录器节点或定序器节点之一的至少一个特殊节点的路由网络，其中记录器节点用于在传送消息之前将消息存储到路由网络内的持久存储器到一个或多个客户端，并且定序器在发送之前对网络接收到的其他消息进行排序，以将消息有序传送到网络的一个或多个客户端。

7. 发明授权

US06760340B1 Message sequencing for ordered multicasting of a message across a routing network 失效
标题翻译：通过路由网络对消息进行有序组播的消息排序
公开(公告)号：US06760340B1
公开(公告)日：2004-07-06
申请号：US09280530
申请日：1999-03-30
申请人： Guruduth Somasekhara Banavar , Tushar Deepak Chandra , Kevan Lee Miller , Robert Evan Strom , Daniel Charles Sturman , Michael James Ward
发明人： Guruduth Somasekhara Banavar , Tushar Deepak Chandra , Kevan Lee Miller , Robert Evan Strom , Daniel Charles Sturman , Michael James Ward
IPC分类号： H04L1228
CPC分类号： H04L12/1881 , H04L12/1868
摘要： A technique for reliably multicasting a message within a router network in a sequenced order with other messages is provided. At least one special router in the network has associated persistent storage for sequencing a message being routed to one or more clients. When a message is received at this sequencer node, the sequencer places a sequence number for the message in persistent storage and sends a sequencing acknowledgment back to those routers to which the message was originally routed, as well as back towards the source of the message. The sequencer acknowledgment includes the message id, and the sequencing number. When the sequencer acknowledgment is received by a router, it looks up the routing information from the original message, and sends the acknowledgment to those neighboring routers to which the original message was sent, excluding the link from which the sequencer acknowledgment was received. If the original message corresponding to the sequencer acknowledgment was buffered at this router waiting to be delivered, the message is then delivered to its client nodes.
摘要翻译：提供了一种以其他消息的顺序可靠地组播路由器网络内的消息的技术。网络中至少有一个特殊路由器具有关联的持久存储器，用于对正在路由到一个或多个客户端的消息进行排序。当在该定序器节点处接收到消息时，定序器将消息的序列号放置在持久存储器中，并将排序确认发送回消息最初路由到的那些路由器，以及返回到消息的源。定序器确认包括消息标识和序列号。当定序器确认由路由器接收时，它从原始消息中查找路由信息，并将确认发送给发送了原始消息的相邻路由器，不包括接收定序器确认的链路。如果在等待传递的路由器上缓冲对应于定序器确认的原始消息，则将该消息传递给其客户机节点。

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