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    • 5. 发明申请
    • Methods and Apparatus for Remote Monitoring
    • 远程监控方法与装置
    • US20100281154A1
    • 2010-11-04
    • US12095504
    • 2006-12-01
    • Bharat Veer BediDavid C. Conway-JonesDavid LockeAndrew James Stanford-Clark
    • Bharat Veer BediDavid C. Conway-JonesDavid LockeAndrew James Stanford-Clark
    • G06F15/16
    • G06F11/2294G06F11/3476
    • Provided are methods, apparatus and computer programs for remote monitoring of data. Log data output by an application program running on a storage-constrained apparatus is saved to local system memory—either as an in-memory data file or as output from one application piped to the input of another, or as a named pipe that passes data to a local publisher program—and then captured by the local publisher program. The local publisher program sends the data to a publish/subscribe broker, which can retain the most recent publications for analysis by one or more subscribers. This avoids the need to save large amounts of data to disk storage on the storage-constrained apparatus, and ensures that console output data and log data that is often discarded by headless, storage-constrained systems is available for analysis. The combination of the retain feature and publishing of output data in response to failure of a monitoring application ensures the availability of the data that was output just before the failure, which is generally the most useful data for problem diagnosis.
    • 提供远程监控数据的方法,设备和计算机程序。 由在存储受限设备上运行的应用程序输出的日志数据被保存到本地系统存储器 - 作为内存中数据文件,或作为从一个应用程序的输出管道传输到另一个应用程序的输入,或作为传递数据的命名管道 到本地发行商计划,然后由本地发行商计划捕获。 本地发行商程序将数据发送到发布/订阅代理,可以保留最新的出版物以供一个或多个订阅者分析。 这避免了将大量数据存储到存储受限设备上的磁盘存储的需要,并且确保通过无头存储受限系统经常丢弃的控制台输出数据和日志数据可用于分析。 响应于监控应用程序的故障,保留功能和输出数据的发布的组合确保在故障之前输出的数据的可用性,这通常是用于问题诊断的最有用的数据。
    • 7. 发明申请
    • DETERMINING THE STATUS OF A DEVICE THROUGH USE OF A PUBLISHER/SUBSCRIBER INTERFACE
    • 通过使用出版者/订阅者界面来确定设备的状态
    • US20080294732A1
    • 2008-11-27
    • US11935465
    • 2007-11-06
    • Benjamin Joseph FletcherAndrew James Stanford-Clark
    • Benjamin Joseph FletcherAndrew James Stanford-Clark
    • G06F15/16G06F17/30
    • H04L43/0811H04L43/10H04L51/043H04L67/16H04L67/24H04L67/2819
    • A publish/subscribe interface is used to enable a non-publish/subscribe first system (such as an IP network device) to obtain status information about a publish/subscribe device that cannot be pinged by the first system. The first system sends a status request to a domain name server associated with a system known to include the publish/subscribe device. The status request includes a domain name for the publish/subscribe device. Topic space maintained by a message broker in the publish/subscribe system includes status topics associated with publish/subscribe devices. The status topics contents reflect the current availability of the associated publish/subscribe device. The domain name is mapped to a status topic associated to the publish/subscribe device identified in the status request and the contents of that status topic are retrieved. If the contents have a first value, a “good” IP address is returned to the first system. If the contents have the second value, a “bad” IP address is returned. The return address is used in ping messages. If the ping operation succeeds, it is concluded the publish/subscribe device is online. If the ping operation fails, it is concluded that the publish/subscribe device is off-line.
    • 发布/订阅界面用于使非发布/订阅第一系统(例如IP网络设备)能够获得关于由第一系统无法ping通的发布/订阅设备的状态信息。 第一个系统向与已知包含发布/订阅设备的系统相关联的域名服务器发送状态请求。 状态请求包括发布/订阅设备的域名。 发布/订阅系统中由消息代理维护的主题空间包括与发布/订阅设备相关联的状态主题。 状态主题内容反映了相关发布/订阅设备的当前可用性。 域名被映射到与状态请求中标识的发布/订阅设备相关联的状态主题,并且检索该状态主题的内容。 如果内容具有第一个值,则会将第一个系统返回“良好”IP地址。 如果内容具有第二个值,则返回“坏”IP地址。 返回地址用于ping消息。 如果ping操作成功,则发布/订阅设备在线。 如果ping操作失败,则得出结论,发布/订阅设备是离线的。
    • 9. 发明授权
    • Name server computer having a load levelling facility to spread the load from client computers across a plurality of server computers
    • 名称服务器计算机具有负载均衡设施,以便通过多台服务器计算机将客户端计算机的负载分散
    • US06282569B1
    • 2001-08-28
    • US08868111
    • 1997-06-03
    • Graham Derek WallisMichael George TaylorMichael PlattAndrew James Stanford-Clark
    • Graham Derek WallisMichael George TaylorMichael PlattAndrew James Stanford-Clark
    • G06F1200
    • G06F9/505H04L29/06H04L67/1002H04L67/1008H04L67/1017
    • A name server computer and method of operating such a computer, for facilitating a connection of a program on a client computer to a server, the server consisting of a plurality of server computers with shared resources. The name server computer, the client computer, and the server computers all reside in a logical network. The name server computer receives a request from the client computer for a computer address of a server computer identified by a server computer name sent with the request, such computer address enabling a connection to be made from the client computer to that server computer via the network. A list of server computer names with their computer addresses is provided. The name server computer uses the list to convert the server computer name received from the client computer into the computer address of the server computer, and then sends the computer address to the client computer. The computer further includes decision logic for studying the server computers at predetermined intervals having regard to a predetermined test criteria, to select one of the server computers. The list is then updated by associating the computer address for the server computer selected by the decision logic with a particular server computer name contained as a generic server computer name in the list. Using this technique, when a client computer specifies the generic server computer name, it receives the computer address of the server computer identified by the decision logic.
    • 一种名称服务器计算机和操作这种计算机的方法,用于促进客户计算机上的程序与服务器的连接,该服务器由具有共享资源的多个服务器计算机组成。 名称服务器计算机,客户端计算机和服务器计算机都驻留在逻辑网络中。 名称服务器计算机从客户端计算机接收由与请求一起发送的服务器计算机名称标识的服务器计算机的计算机地址的请求,该计算机地址能够通过网络从客户端计算机到该服务器计算机进行连接 。 提供了具有计算机地址的服务器计算机名称列表。 名称服务器计算机使用列表将从客户端计算机接收的服务器计算机名称转换为服务器计算机的计算机地址,然后将计算机地址发送到客户端计算机。 计算机还包括用于在考虑到预定测试标准的情况下以预定间隔研究服务器计算机的决定逻辑,以选择服务器计算机之一。 然后通过将由决策逻辑器选择的服务器计算机的计算机地址与在列表中作为通用服务器计算机名称包含的特定服务器计算机名相关联来更新该列表。 使用这种技术,当客户端计算机指定通用服务器计算机名称时,它接收由决策逻辑标识的服务器计算机的计算机地址。