公开(公告)号：US06925644B2

公开(公告)日：2005-08-02

申请号：US10355217

申请日：2003-01-31

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： G06F9/445 ,  G06F9/46 ,  G06F9/50 ,  G06F12/02 ,  G06F17/30 ,  H04L12/417 ,  H04L29/06

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。

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。

公开(公告)号：US06463446B1

公开(公告)日：2002-10-08

申请号：US09044933

申请日：1998-03-20

申请人： Ann M. Wollrath ,  James H. Waldo ,  Peter C. Jones ,  Kenneth C.R.C. Arnold

发明人： Ann M. Wollrath ,  James H. Waldo ,  Peter C. Jones ,  Kenneth C.R.C. Arnold

IPC分类号： G06F1730

CPC分类号： G06F17/30607 ,  G06F9/542 ,  G06F9/547 ,  G06F12/0261 ,  G06F2209/544 ,  H04L12/417 ,  H04L12/433 ,  H04L29/06 ,  H04L67/10 ,  H04L67/16 ,  H04L67/26 ,  H04L67/40 ,  H04L69/24 ,  H04L69/329 ,  Y10S707/99954

摘要： In a distributed computing system, a first process may register interest in an event occurring in another address space or physical machine in such a way as to allow the subsequent notification of the event's occurrence to contain an object that includes methods that are to be run on receipt of the notification. When the notification is received, either by the first process or by some other entity designated by the first process to be the final point of notification, the methods may be executed as specified by the first process.

公开(公告)号：US06449648B1

公开(公告)日：2002-09-10

申请号：US09691104

申请日：2000-10-19

申请人： James H. Waldo ,  John W. F. McClain

发明人： James H. Waldo ,  John W. F. McClain

IPC分类号： G06F1730

CPC分类号： G06F9/50 ,  G06F9/4411 ,  G06F9/465 ,  G06F9/5011 ,  G06F9/5061 ,  G06F9/52 ,  G06F9/542 ,  G06F12/023 ,  G06F12/0253 ,  G06F12/0261 ,  G06F17/30607 ,  G06Q10/02 ,  Y10S707/99945 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99957

摘要： In accordance with methods and systems consistent with the present invention, a lease manager is provided for managing leases between clients and other network services. To use the lease manager, a client enters into a management lease with the lease manager, specifying an amount of time during which the lease manager can manage preexisting leases between the client and network services on behalf of the client. This management includes renewing the preexisting leases with the other network services. Further, the lease manager notifies the client when a lease between the lease manager and the client is near expiration. The lease manager also notifies the client of failed attempts to renew the preexisting leases, as well as the management lease, either with a network service or with the lease manager.

摘要翻译： 根据与本发明一致的方法和系统，租赁管理器被提供用于管理客户端和其他网络服务之间的租约。 为了使用租赁经理，客户与租赁经理签订管理租赁，指定租赁经理代表客户端管理客户端和网络服务之间的预先租赁的时间。 这种管理包括将其他网络服务的预先租赁更新。 此外，租赁经理在租赁经理和客户之间的租约接近到期时通知客户。 租赁经理还通知客户失败的企图通过网络服务或租赁经理更新预先存在的租赁以及管理租赁。

公开(公告)号：US06243716B1

公开(公告)日：2001-06-05

申请号：US09377491

申请日：1999-08-20

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： 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。

公开(公告)号：US06185611B2

公开(公告)日：2001-02-06

申请号：US09044931

申请日：1998-03-20

申请人： James H. Waldo ,  Ann M. Wollrath ,  Robert W. Scheifler ,  Kenneth C. R. C. Arnold

发明人： James H. Waldo ,  Ann M. Wollrath ,  Robert W. Scheifler ,  Kenneth C. R. C. Arnold

IPC分类号： G06F15177

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。

公开(公告)号：US6016500A

公开(公告)日：2000-01-18

申请号：US44916

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： G06F12/00 ,  G06F9/445 ,  G06F9/46 ,  G06F9/50 ,  G06F12/02 ,  G06F17/30 ,  H04L12/417 ,  H04L12/433 ,  H04L29/06 ,  G06F11/00

CPC分类号： G06F12/0261 ,  G06F12/023 ,  G06F12/0253 ,  G06F17/30607 ,  G06F9/4411 ,  G06F9/465 ,  G06F9/5011 ,  G06F9/5016 ,  G06F9/5022 ,  G06F9/5055 ,  G06F9/5061 ,  G06F9/52 ,  G06F9/547 ,  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。