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1. 发明授权

US6032151A Database system employing polymorphic entry and entry matching 失效
标题翻译：数据库系统采用多态条目和条目匹配
公开(公告)号：US6032151A
公开(公告)日：2000-02-29
申请号：US971529
申请日：1997-11-17
申请人： Kenneth C. R. C. Arnold , James H. Waldo , Roger Riggs , Ann M. Wollrath , Peter Jones
发明人： Kenneth C. R. C. Arnold , James H. Waldo , Roger Riggs , Ann M. Wollrath , Peter Jones
IPC分类号： G06F9/445 , G06F17/30
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。

2. 发明授权

US06564240B2 Method, apparatus, and product for leasing of group membership in a distributed system 有权
公开(公告)号：US06564240B2
公开(公告)日：2003-05-13
申请号：US10077919
申请日：2002-02-20
申请人： James H. Waldo , Ann M. Wollrath , Robert Scheifler , Kenneth C. R. C. Arnold
发明人： James H. Waldo , Ann M. Wollrath , Robert Scheifler , Kenneth C. R. C. Arnold
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.

3. 发明授权

US06446070B1 Method and apparatus for dynamic distributed computing over a network 失效
标题翻译：通过网络进行动态分布式计算的方法和装置
公开(公告)号：US06446070B1
公开(公告)日：2002-09-03
申请号：US09030840
申请日：1998-02-26
申请人： Kenneth C. R. C. Arnold , James H. Waldo , Ann M. Wollrath , Peter C. Jones
发明人： Kenneth C. R. C. Arnold , James H. Waldo , Ann M. Wollrath , Peter C. Jones
IPC分类号： G06F900
CPC分类号： G06F9/547 , G06F9/5044 , G06F9/505 , G06F9/52 , G06F2209/549 , Y10S707/99938
摘要： A homogeneous execution environment operates within a heterogeneous client-server network. A client selects a server and transmits a procedure call with parameters. In response, the system dynamically and securely downloads code to a compute server; invokes a generic compute method; executes the code on the compute server; and returns the results to the calling client method, preserving the result on the compute server if requested. This technique is efficient in that it does not require multiple copies of code to be downloaded or compiled since server byte-codes can be executed on each of the different systems. The code can be compiled once and downloaded as needed to the various servers as byte-codes and then executed.
摘要翻译：均匀的执行环境在异构的客户端 - 服务器网络内运行。客户端选择一个服务器并发送具有参数的过程调用。作为响应，系统动态安全地将代码下载到计算服务器; 调用通用计算方法; 执行计算服务器上的代码; 并将结果返回给调用客户端方法，如果请求，则在计算服务器上保留结果。这种技术是有效的，因为不需要下载或编译多个代码副本，因为可以在每个不同的系统上执行服务器字节码。代码可以编译一次，并根据需要下载到各种服务器作为字节代码，然后执行。

4. 发明授权

US06421704B1 Method, apparatus, and product for leasing of group membership in a distributed system 失效
标题翻译：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
申请人： James H. Waldo , Ann M. Wollrath , Robert Scheifler , Kenneth C. R. C. Arnold
发明人： James H. Waldo , Ann M. Wollrath , Robert Scheifler , Kenneth C. R. C. Arnold
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。

5. 发明授权

US06263350B1 Method and system for leasing storage 失效
标题翻译：租赁存储方法和系统
公开(公告)号：US06263350B1
公开(公告)日：2001-07-17
申请号：US09044923
申请日：1998-03-20
申请人： Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold
发明人： Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold
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 method and system for leasing storage locations in a distributed processing system is provided. Consistent with this method and system, a client requests access to storage locations for a period of time (lease period) from a server, such as the file system manager. Responsive to this request, the server invokes a lease period algorithm, which considers various factors to determine a lease period during which time the client may access the storage locations. After a lease is granted, the server sends an object to the client that advises the client of the lease period and that provides the client with behavior to modify the lease, like canceling the lease or renewing the lease. The server supports concurrent leases, exact leases, and leases for various types of access. After all leases to a storage location expire, the server reclaims the storage location.
摘要翻译：提供了一种在分布式处理系统中租赁存储位置的方法和系统。与该方法和系统一致，客户机从服务器（例如文件系统管理器）请求对存储位置的访问一段时间（租赁期）。响应于该请求，服务器调用租约期算法，该算法考虑各种因素来确定客户端可以访问存储位置的租期。授予租赁后，服务器向客户端发送一个对客户建议租约期的对象，并向客户提供修改租约的行为，如取消租约或更新租约。服务器支持各种类型的访问的并发租约，确切的租赁和租赁。在所有租赁到存储位置到期后，服务器将回收存储位置。

6. 发明授权

US08713089B2 Dynamic lookup service in a distributed system 有权
标题翻译：分布式系统中的动态查找服务
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。

7. 发明授权

US06983285B2 Apparatus and method for dynamically verifying information in a distributed system 有权
公开(公告)号：US06983285B2
公开(公告)日：2006-01-03
申请号：US10141934
申请日：2002-05-10
申请人： Kenneth C. R. C. Arnold , Ann M. Wollrath , James H. Waldo
发明人： Kenneth C. R. C. Arnold , Ann M. Wollrath , James H. Waldo
IPC分类号： G06F17/30
CPC分类号： G06F9/4411 , G06F9/465 , H04L67/10 , Y10S707/955 , Y10S707/966 , Y10S707/99933 , Y10S707/99939 , Y10S707/99942 , Y10S707/99943 , Y10S707/99945 , Y10S707/99948 , Y10S707/99952
摘要： Use of a policy object for verification in a distributed system. A machine downloads a policy object containing a reference to code governing verification of data. The machine uses the reference to obtain the code and locally verify data or other information. As particular rules for the data change, the policy object may be updated to provide a reference to the code for the new rules when it is downloaded.

8. 发明授权

US06760736B2 Methods and systems for distributed failure detection and recovery using leasing techniques 有权
标题翻译：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
申请人： James H. Waldo , Ann M. Wollrath , Robert Scheifler , Kenneth C. R. C. Arnold
发明人： James H. Waldo , Ann M. Wollrath , Robert Scheifler , Kenneth C. R. C. Arnold
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。

9. 发明授权

US06519615B1 Method and system for leasing storage 有权
公开(公告)号：US06519615B1
公开(公告)日：2003-02-11
申请号：US09690472
申请日：2000-10-18
申请人： Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold
发明人： Ann M. Wollrath , James H. Waldo , Kenneth C. R. C. Arnold
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 method and system for leasing storage locations in a distributed processing system is provided. Consistent with this method and system, a client requests access to storage locations for a period of time (lease period) from a server, such as the file system manager. Responsive to this request, the server invokes a lease period algorithm, which considers various factors to determine a lease period during which time the client may access the storage locations. After a lease is granted, the server sends an object to the client that advises the client of the lease period and that provides the client with behavior to modify the lease, like canceling the lease or renewing the lease. The server supports concurrent leases, exact leases, and leases for various types of access. After all leases to a storage location expire, the server reclaims the storage location.

10. 发明授权

US06466947B2 Apparatus and method for dynamically verifying information in a distributed system 失效
公开(公告)号：US06466947B2
公开(公告)日：2002-10-15
申请号：US09044932
申请日：1998-03-20
申请人： Kenneth C. R. C. Arnold , Ann M. Wollrath , James H. Waldo
发明人： Kenneth C. R. C. Arnold , Ann M. Wollrath , James H. Waldo
IPC分类号： G06F1700
CPC分类号： G06F9/4411 , G06F9/465 , H04L67/10 , Y10S707/955 , Y10S707/966 , Y10S707/99933 , Y10S707/99939 , Y10S707/99942 , Y10S707/99943 , Y10S707/99945 , Y10S707/99948 , Y10S707/99952
摘要： Use of a policy object for verification in a distributed system. A machine downloads a policy object containing a reference to code governing verification of data. The machine uses the reference to obtain the code and locally verify data or other information. As particular rules for the data change, the policy object may be updated to provide a reference to the code for the new rules when it is downloaded.

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