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1.发明授权Methods and systems for distributed failure detection and recovery using leasing techniques 有权使用租赁技术进行分布式故障检测和恢复的方法和系统公开(公告)号：US06760736B2
公开(公告)日：2004-07-06
申请号：US09739744
申请日：2000-12-20
IPC分类号： G06F1730
CPC分类号： G06F12/0261 , G06F9/4411 , G06F9/465 , G06F9/5011 , G06F9/5016 , G06F9/5022 , G06F9/5055 , G06F9/5061 , G06F9/52 , G06F9/547 , G06F12/023 , G06F12/0253 , G06F17/30607 , H04L12/417 , H04L12/433 , H04L29/06 , H04L69/24 , Y10S707/99933 , Y10S707/99944 , Y10S707/99952 , Y10S707/99953 , Y10S707/99957
摘要： A system for using a lease to detect a failure and to perform failure recovery is provided in using this system, a client requests a lease from a server to utilize a resource managed by the server for a period of time. Responsive to the request, the server grants the lease, and the client continually requests renewal of the lease. If the client fails to renew the lease, the server detects that an error has occurred to the client. Similarly, if the server fails to respond to a renew request, the client detects that an error has occurred to the server. As part of the lease establishment, the client and server exchange failure-recovery routines that each invokes if the other experiences a failure.
摘要翻译： 在使用该系统时，提供了使用租赁来检测故障并执行故障恢复的系统，客户端请求服务器租用一段时间内由服务器管理的资源。 响应请求，服务器授予租约，客户端不断要求续租。 如果客户端无法续订租约，则服务器检测到客户端发生错误。 类似地，如果服务器无法响应更新请求，客户端会检测到服务器发生错误。 作为租赁建立的一部分，客户端和服务器交换故障恢复例程，如果其他用户遇到故障，它们将调用。
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公开(公告)号：US06564240B2
公开(公告)日：2003-05-13
申请号：US10077919
申请日：2002-02-20
IPC分类号： G06F900
CPC分类号： G06F9/5011 , G06F9/4411 , G06F9/465 , G06F9/52 , G06F9/547 , G06F12/0253 , G06F12/0261 , G06F17/30607 , H04L12/417 , H04L29/06 , H04L69/24 , Y10S707/99953 , Y10S707/99957
摘要： A system for leasing a group membership in a distributed processing system is provided. In accordance with this system, a remote object requests from an activation group a membership in the activation group for a period of time. Responsive to this request, the activation group determines an appropriate lease period during which time the remote object becomes a member of the activation group and runs in the same address space as other objects of the activation group.
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3.发明授权Method, apparatus, and product for leasing of group membership in a distributed system 失效在分布式系统中租用集团成员资格的方法，设备和产品公开(公告)号：US06421704B1
公开(公告)日：2002-07-16
申请号：US09044834
申请日：1998-03-20
IPC分类号： G06F900
CPC分类号： G06F9/5011 , G06F9/4411 , G06F9/465 , G06F9/52 , G06F9/547 , G06F12/0253 , G06F12/0261 , G06F17/30607 , H04L12/417 , H04L29/06 , H04L69/24 , Y10S707/99953 , Y10S707/99957
摘要： A system for leasing a group membership in a distributed processing system is provided. In accordance with this system, a remote object requests from an activation group a membership in the activation group for a period of time. Responsive to this request, the activation group determines an appropriate lease period during which time the remote object becomes a member of the activation group and runs in the same address space as other objects of the activation group.
摘要翻译： 提供了一种用于在分布式处理系统中租用组成员身份的系统。 根据该系统，远程对象从激活组请求激活组中的成员资格一段时间。 响应于此请求，激活组确定在该时间内远程对象成为激活组的成员并在与激活组的其他对象相同的地址空间中运行的适当租期。
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4.发明授权Downloadable smart proxies for performing processing associated with a remote procedure call in a distributed system 失效用于执行与分布式系统中的远程过程调用相关联的处理的可下载的智能代理公开(公告)号：US06393497B1
公开(公告)日：2002-05-21
申请号：US09044930
申请日：1998-03-20
IPC分类号： G06F1300
摘要： Use of a smart proxy as a wrapper around a stub in a distributed system. Instead of receiving a stub as a result of a remote procedure call, a caller receives a smart proxy including the stub as an embedded object. The smart proxy performs predefined processing associated with a remote procedure call, the processing possibly occurring before, during, or after a response to the call.
摘要翻译： 使用智能代理作为分布式系统中存根周围的包装。 作为远程过程调用的结果而不是接收存根，呼叫者接收包括作为嵌入对象的存根的智能代理。 智能代理执行与远程过程调用相关联的预定义处理，该处理可能发生在对呼叫的响应之前，期间或之后。
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公开(公告)号：US09183066B2
公开(公告)日：2015-11-10
申请号：US10138424
申请日：2002-05-06
摘要： Use of a smart proxy as a wrapper around a stub in a distributed system. Instead of receiving a stub as a result of a remote procedure call, a caller receives a smart proxy including the stub as an embedded object. The smart proxy performs predefined processing associated with a remote procedure call, the processing possibly occurring before, during, or after a response to the call.
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6.发明授权Method, apparatus, and product for leasing of group membership in a distributed system 失效在分布式系统中租用集团成员资格的方法，设备和产品公开(公告)号：US06925644B2
公开(公告)日：2005-08-02
申请号：US10355217
申请日：2003-01-31
CPC分类号： G06F9/5011 , G06F9/4411 , G06F9/465 , G06F9/52 , G06F9/547 , G06F12/0253 , G06F12/0261 , G06F17/30607 , H04L12/417 , H04L29/06 , H04L69/24 , Y10S707/99953 , Y10S707/99957
摘要： A system for leasing a group membership in a distributed processing system is provided. In accordance with this system, a remote object requests from an activation group a membership in the activation group for a period of time. Responsive to this request, the activation group determines an appropriate lease period during which time the remote object becomes a member of the activation group and runs in the same address space as other objects of the activation group.
摘要翻译： 提供了一种用于在分布式处理系统中租用组成员身份的系统。 根据该系统，远程对象从激活组请求激活组中的成员资格一段时间。 响应于此请求，激活组确定在该时间内远程对象成为激活组的成员并在与激活组的其他对象相同的地址空间中运行的适当租期。
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7.发明授权Apparatus and method for providing downloadable code for use in communicating with a device in a distributed system 失效用于提供可下载代码以用于与分布式系统中的设备进行通信的装置和方法公开(公告)号：US06560656B1
公开(公告)日：2003-05-06
申请号：US09044939
申请日：1998-03-20
申请人： Bryan O'Sullivan , Robert Scheifler , Peter C. Jones , Ann M. Wollrath , Kenneth C. R. C. Arnold , James H. Waldo
发明人： Bryan O'Sullivan , Robert Scheifler , Peter C. Jones , Ann M. Wollrath , Kenneth C. R. C. Arnold , James H. Waldo
IPC分类号： G06F1516
CPC分类号： G06F17/30607 , G06F9/4416 , G06F9/465 , H04L12/433 , H04L63/10
摘要： Downloading code for communicating with a device that joins a network. When the device joins the network, it transmits a multicast packet including a reference to code for use in communicating with the device. Receivers in the network use the reference to download the code for constructing objects to communicate with the device, and the receivers respond with a reference to a lookup service in the network. Using the reference from the receivers, the device registers with the lookup service.
摘要翻译： 下载与加入网络的设备进行通信的代码。 当设备加入网络时，它发送包括用于与设备进行通信的代码的引用的多播分组。 网络中的接收者使用引用来下载用于构建与设备进行通信的对象的代码，并且接收器通过对网络中的查找服务的引用进行响应。 使用接收器的引用，设备会向查找服务注册。
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8.发明授权Methods and systems for distributed failure detection and recovery using leasing 有权使用租赁分布式故障检测和恢复的方法和系统公开(公告)号：US06243716B1
公开(公告)日：2001-06-05
申请号：US09377491
申请日：1999-08-20
IPC分类号： G06F1500
CPC分类号： G06F12/0261 , G06F9/4411 , G06F9/465 , G06F9/5011 , G06F9/5016 , G06F9/5022 , G06F9/5055 , G06F9/5061 , G06F9/52 , G06F9/547 , G06F12/023 , G06F12/0253 , G06F17/30607 , H04L12/417 , H04L12/433 , H04L29/06 , H04L69/24 , Y10S707/99933 , Y10S707/99944 , Y10S707/99952 , Y10S707/99953 , Y10S707/99957
摘要： A system for using a lease to detect a failure and to perform failure recovery is provided. In using this system, a client requests a lease from a server to utilize a resource managed by the server for a period of time. Responsive to the request, the server grants the lease, and the client continually requests renewal of the lease. If the client fails to renew the lease, the server detects that an error has occurred to the client. Similarly, if the server fails to respond to a renew request, the client detects that an error has occurred to the server. As part of the lease establishment, the client and server exchange failure-recovery routines that each invokes if the other experiences a failure.
摘要翻译： 提供了一种使用租约来检测故障并执行故障恢复的系统。 在使用该系统时，客户端请求从服务器租用一段时间内由服务器管理的资源。 响应请求，服务器授予租约，客户端不断要求续租。 如果客户端无法续订租约，则服务器检测到客户端发生错误。 类似地，如果服务器无法响应更新请求，客户端会检测到服务器发生错误。 作为租赁建立的一部分，客户端和服务器交换故障恢复例程，如果其他用户遇到故障，它们将调用。
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公开(公告)号：US6032151A
公开(公告)日：2000-02-29
申请号：US971529
申请日：1997-11-17
CPC分类号： G06F17/30607 , G06F9/4411 , Y10S707/99933 , Y10S707/99943 , Y10S707/99944
摘要： A database system wherein one or more entry databases store a plurality of entries. Each entry is of a given type that defines the fields of the entry. Each of the fields contains or identifies an object with associated attributes or data. The type of each entry may further define behavior in the form of methods the entry is configured to implement. An entry type which is a subtype of another inherits all of the fields and behavior of its supertype, and contains additional fields and/or defines new/modified behavior. Entries may be expressed in a Java.TM. class of the Java.TM. programming language. The database system may further employ a search engine which allows queries to be made upon entries in the database. In one implementation, the queries include a read operation, a take operation, and a notify operation. Each query request includes a command indicating the type of operation, and a template which is an entry object having some or all of its fields set to specified values that must be matched exactly. Other fields of the template entry may be specified as wildcards, whose values do not matter. The search engine may further be configured to create an index for entries having characteristics which are commonly specified by queries. Thus, the search engine may detect a pattern of usage and create an index which points to entries having attributes which are commonly specified by received templates. In this manner, expedient entry searching may be accommodated.
摘要翻译： 数据库系统，其中一个或多个条目数据库存储多个条目。 每个条目都是给定类型，用于定义条目的字段。 每个字段包含或标识具有关联属性或数据的对象。 每个条目的类型可以进一步以条目被配置为实现的方式的形式定义行为。 作为另一个子类型的条目类型继承其超类型的所有字段和行为，并包含其他字段和/或定义新的/修改的行为。 条目可以在Java TM编程语言的Java TM类中表示。 数据库系统还可以采用允许在数据库中的条目进行查询的搜索引擎。 在一个实现中，查询包括读操作，执行操作和通知操作。 每个查询请求包括指示操作类型的命令，以及作为条目对象的模板，其中的一些或所有字段被设置为必须精确匹配的指定值。 模板条目的其他字段可以指定为通配符，其值无关紧要。 搜索引擎还可以被配置为为具有通常由查询指定的特征的条目创建索引。 因此，搜索引擎可以检测使用模式并创建指向具有由接收的模板通常指定的属性的条目的索引。 以这种方式，可以适应有利的条目搜索。
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公开(公告)号：US08713089B2
公开(公告)日：2014-04-29
申请号：US10408365
申请日：2003-04-08
申请人： Brian T. Murphy , Robert W. Scheifler , Zane Pan , James H. Waldo , Ann M. Wollrath , Kenneth C. R. C. Arnold
发明人： Brian T. Murphy , Robert W. Scheifler , Zane Pan , James H. Waldo , Ann M. Wollrath , Kenneth C. R. C. Arnold
IPC分类号： G06F15/16 , G06F15/173
CPC分类号： H04L67/16 , G06F9/465 , G06F9/505 , G06F9/5055 , G06F9/52 , G06F9/542 , G06F9/547 , G06F9/548 , G06F12/0261 , G06F17/30607 , G06F21/54 , G06F2209/462 , G06F2209/5015 , H04L12/2803 , H04L12/2805 , H04L12/2807 , H04L12/2809 , H04L12/40032 , H04L12/40169 , H04L12/403 , H04L12/417 , H04L29/06 , H04L67/10 , H04L67/26 , H04L67/2804 , H04L67/2842 , H04L67/40 , H04L67/42 , H04L69/24 , H04L69/329
摘要： An improved lookup service is provided that allows for the dynamic addition and deletion of services. This lookup service allows for the addition and deletion of services automatically, without user intervention. As a result, clients of the lookup service may continue using the lookup service and its associated services while the updates occur. Additionally, the lookup service provides a notification mechanism that can be used by clients to receive a notification when the lookup service is updated. By receiving such a notification, clients can avoid attempting to access a service that is no longer available and can make use of new services as soon as they are added to the lookup service.
摘要翻译： 提供了一种改进的查找服务，允许动态添加和删除服务。 此查找服务允许自动添加和删除服务，无需用户干预。 结果，查找服务的客户端可以在更新发生时继续使用查找服务及其相关联的服务。 另外，查找服务提供通知机制，客户端可以在更新查找服务时接收通知。 通过接收到这样的通知，客户端可以避免尝试访问不再可用的服务，并且一旦添加到查找服务就可以使用新服务。
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