管理域

• Of this series discussed the benefits of using condor in conjunction with the globus toolkit to provide an easy - to - use interface for job submission , monitoring , and control in a heterogeneous grid compute environment that might span administrative domains
  讨论了与globus toolkit一起使用condor的好处，这可以为在一个可能跨越多个管理域的异构网格计算环境中进行作业提交、监视和控制提供一个易于使用的接口。
• Combined with my works when participated in the software development of hyoss , the thesis specifies the whole system analysis process , which is directed by the ngoss sam and ngoss theory . the thesis specifies the user management system design process and also gives out other sub - system design processes . on the other hand , the thesis particularly describes the hyoss architecture design , the j2ee technology used in the hyoss development , the design patterns , the struts framework , the development processes in the presentation layers , business logic layer and the data persistence layer , and at last the thesis depicts the development models using ejb
  结合本人在实验室参与的hyoss宽带运营支撑系统的项目,本文重点阐述了作者在ngoss理论指导下,按照ngoss系统分析视图sam进行hyoss系统分析和系统设计的全过程,本文强调了系统分析的方法,分析了hyoss运营的商务环境,价值链模型,管理域模型,设计了基于etom模型的商务过程架构,合理划分了hyoss系统功能结构,分析了hyoss的技术实现方式,包括j2ee技术,设计模式, struts框架等。
• Also , the thesis provides a kind of optimization mechanism and the layered algorithm to customize the demultiplexing method strategy for every class of distributed object . the algorithm is provided to directly locate method , which has good space and time efficiency . when we apply these to starbus , the efficiency of starbus can be improved 30 % according to benchmark presented by us
  基于mlmd和corba计算模型提出了一个可灵活配置的多端口orb结构，支持层次管理域的部署，并讨论了流控机制的实现，基于reactor国防科学技术大学研究生院学位论文模板的扩展技术提出了一种事件类型“借用”策略的公平、自调度的流控机制算法。
• Grid systems can be classified into computational grids and data grids . computational grids involve sharing heterogeneous resources ( based on different platforms , hardware / software architectures , and computer languages ) , located in different places belonging to different administrative domains over a network using open standards . in short , it involves virtualizing computing resources
  网格系统分为计算网格和数据网格,计算网格包括共享基于不同平台、硬软件体系结构和计算语言的异构系统,这些异构系统都是分布于互联网中的不同物理位置的属于不同机构和管理域的,一句话,计算网格以开放标准提供虚拟计算资源。
• This paper stresses on discussing the architecture , access protocol and implementation mechanism based on xml and web services technologies , researches key technologies of metadata information service and data uniform access and management in database grid , designs and implements distributed mis subsystem and das subsystem , which support multi - domain management . mis can provides metadata information for the whole system , such as das and clients , it uses domain name 、 logical name and internal name of data object to uniformly name database resources in grid and implements name mapping mechanism and user view metadata information service and provides virtual organization and management of database resources . das can provide a scalable uniform data access by virtual organization and management of storage resources and multi - mode data share access mechanism , thus integrate database resources in grid and shields distribution and heterogeneity of resources and achieves transparent access . system adopts data access mechanism based on user request mapping to flexibly implement data access across multi domains , and adopts distributed data cache mechanism 、 security mechanism based gsi to provide high - performance secure data service for grid users
  本文论述了griddaen - dai系统的逻辑结构、访问协议、数据服务流程以及基于webservices 、 xml等技术的实现策略,重点研究数据库网格中的元服务、数据统一访问和管理等关键技术,设计和实现了支持多管理域的分布式元服务子系统和数据访问服务子系统。其中元服务主要为整个系统提供各种元信息支持,它采用域名、数据对象的逻辑名称、物理名称和内部名称对广域环境下的数据库数据进行了统一命名,实现了相应的名字映射机制和全局的用户数据视图服务,提供了数据库资源的虚拟组织与管理方式;数据访问服务通过提供可扩展的统一数据访问和支持多种数据共享访问模式,屏蔽了数据库资源的分布性和异构性,为用户提供了统一透明的数据服务。
• All these are crucial technologies in our project and also the central task in the thesis . for the two - hierarchy network architecture , we put forward a centralized subscriber management solution in a management realm . this solution is based on the aaa function provided by the radius server and extends new functions of location register and location tracking of the wireless hosts
  鉴于本系统采用分级路由的网络结构，移动用户的主机通过无线网点接入，无线网点之间形成骨干ip网络进行动态路由，所以，我们提出在一个管理域中使用集中式用户管理的方案：利用radius服务器，在aaa管理的基础上，将用户位置登记和跟踪管理纳入用户管理的范畴中，统一通过“用户- nas - radius服务器”的三级接入模型，实现对用户的接入管理和用户位置跟踪。
• Our algorithm makes use of the topology configuration information in routers , switches and hosts under the situation that do not generate traffic in the network in advance , to determine the interconnection between directly connected peers in a network , to produce the ip - level and link - level topology map
  本算法使用snmp协议采集管理域内各种网络设备中mib库保存的信息，采用本文提出的设备连接关系判定规则处理获取的拓扑信息，确定路由器、交换机和主机之间的连接关系，构造网络第二层和第三层的拓扑结构图。
• So the clients are no longer just browsers ; they are web services clients that interact with application services across administrative domains , and those application services can then call back to the shibboleth services of the client to obtain attributes that can be used for the access control authorization requirements
  因此，客户机不仅仅是浏览器；它们包括web服务客户机，可以与跨管理域的应用服务进行交互，这些应用服务然后可以回调客户机的shibboleth服务，从而获取可用于访问控制授权需求的属性。