集群中所有节点对数据的并发访问，以及某些分布式文件系统所内置的高可用性，是它们成为集群环境理想选择的两方面原因。
Concurrent access to data from all nodes in a cluster and the high availability built into some distributed file systems are a couple of reasons why they are ideal for a cluster environment.
通过将分布式计算资源组合到单一的系统“图像”中，网格计算生成了可以使用户访问所需数据和资源的虚拟机算计。
By combining distributed computing resources into a single system "image," grid computing creates a virtual computer from which users can access data and resources as required.
您此时可能想到使用文件锁或其他特定于操作系统的技巧，以在分布式环境中同步对文件的访问。
You might have some ideas about using file locking or other operating system-specific tricks to synchronize access to a file in a distributed environment.
在分布式系统上，mqm组提供了对系统上所有mq资源的管理访问权限。
On distributed systems, the MQM group provides administrative access to all mq resources on a system.
它是一个分布式的内存缓存系统，Facebook(包含其他很多网站)用它作为Web服务器和MySQL服务器之间的缓存层(因为数据库访问相对比较慢)。
It's a distributed memory caching system which Facebook (and a ton of other sites) use as a caching layer between the web servers and MySQL servers (since database access is relatively slow).
WebSphereeXtremeScale提供易于访问的插件，使用分布式动态内存网格替换动态(side)缓存的in - process - memory和磁盘系统。
WebSphere eXtreme Scale provides an easy-to-use plug-in to replace the dynamic (side) cache's in-process-memory and disk system with a distributed dynamic in-memory grid.
Web站点的访问者开了一个新的帐户，在此之后必须在两个不同的分布式旧系统中创建：用于帐户管理的ERP数据库和用于客户支持的CRM数据库。
A web site visitor opens a new account, which must then be created in two different distributed legacy systems: an ERP database for accounting, and a CRM database for customer support.
本文主要讨论如何利用现代密码技术实现分布式系统中的安全访问控制。
It is mainly discusses that how to use modern cryptographic technology to achieve secure access control in distributed systems.
访问控制机制是分布式工作流系统安全策略中的核心内容。
Access control mechanism is an increasingly important content in security policy of distributed workflow management system.
针对不可靠军事通信应用系统中网络数据库访问效率低的问题，提出一种基于分布式组件的数据库访问模型。
According to low efficiency in network database accessing in unreliable military communication system, this paper proposes the database access model based on distributed component.
基于SPKI技术提出了组播分布式访问控制系统MDAC，并提出了基于二叉授权委托树的委托证书路径(DCP)查找算法。
Based on SPKI technology, proposing multicast distributed access control system: MDAC, as wall as, proposing a delegation certificate path (DCP) searching algorithm based on binary tree.
分散式系统在数据库领域中称为分布式系统，这种系统能处理不同的数据采集、存储和访问方一式。
A decentralized system-known in the database world as a distributed system can be highly responsive to differences in data gathering, storage, and access.
分布式加密存储系统面临的另一个重要问题是用户数据分布以及分布数据的透明访问。
File data distribution and transparent access to the distributed data is another important issue faced by distributed encrypting storage systems.
在分布式网络系统中，为了实现系统协调一致的工作，必须要有相应的同步互斥算法来保证临界资源的互斥访问和操作。
To work coordinately in a distributed network system, a synchronization algorithm must be introduced to assure mutual exclusive access and operation on the critical resource.
将资源作为对象来解决分布式虚拟环境系统的信息服务和资源定位，提供对分布在不同机器上的各种不同资源动态信息的有效、可靠访问。
An information service and resource discovery mechanism are proposed for DVE system, providing efficient and reliable access to dynamic information about diverse and distributed state of resources.
在大型分布式对象存储系统中，元数据服务系统是一个潜在的访问瓶颈。
In the large-scale distributed object-based storage system, the metadata service system is a latent visit bottleneck.
讲述了分布式控制系统中用于提供设备访问服务的设备服务器软件的实现方法。
This article describes the device server software used to provide device access service in distributed control system.
分布式对象构造技术是实现分布式数据库系统的基础，而数据库访问技术是开发分布式数据库系统的关键。
Distributed object construction technique is the foundation to achieve distributed database system function, and the technique of accessing database is the key to achieve distributed database system.
当策略发生改变后，模型中各子系统根据管理指令进行自身的策略改变，使整个分布式系统中的RBAC访问控制策略达到一致。
When the policy changes, the subsystems change its own access control policy by Administrative Commands, then make the RBAC Administration in Distributed systems consistent.
文中介绍了该方案在分布式文件系统中文件分布式访问的应用。
The application of files distributed access on distributed file system is also introduced.
在分布式存储系统中，元数据服务系统是一个潜在的访问瓶颈。
Metadata server system is a latent visit bottleneck in distributed storage system.
本文主要研究分布式虚拟环境中与访问代理相关的技术问题，以及武器装备信息存储系统的设计方法与实现技术。
In this thesis, the technology about Access broker is studied and the Weapon Information Storage System is designed and implemented.
目录服务作为一种日益引起业内重视的新型数据存储技术，它的数据存储方式、分布式的构造方式以及数据访问方式与分布式数据库系统有很大区别。
Directory Service is a data-storage technology, which is completely different with DBS, especially in the mode of data-storage, the structure of distributing and the mode of visiting data.
系统中采用了信任链机制、基于角色的访问控制模型、两级日志、可信认证等技术，同时给出了可信在分布式计算机系统中的实现技术和途径。
In this system, many new techniques are adopted, for example, mechanism of the chain of trust, role-based access control model, two-level of logs, trusted authorization and so on.
这些模型适合分布式交互式应用系统，并能提高系统的访问控制效率。
These models are suitable for distributed and interactive applications, and improve control efficiency.
该模型解决了传统的基于角色访问控制中的动态适应性差和最小权限约束假象的问题，用于分布式工作流管理系统，提高了安全性、实用性。
This model overcomes the weaknesses of the bad dynamic adaption and the fake constraint of the least privilege. It can enhance the security and practicability of the distributed workflow system.
互斥问题是分布式系统设计时的关键问题，它保证并发进程正确的访问临界资源。
Mutual exclusion is an important problem in distributed system It guarantees concurrent processes access critical resources correctly.
描述了面向对象系统的数据模型，研究了信息流和信息传输，并以此为基础给出了基于自主访问控制策略的分布式对象系统的信息流控制方法。
To keep independent object-oriented system secure from Trojan horse, there exists already a restrictive policy that blends information flow control with discretionary access control.
与传统的分布式系统不同的是，开放系统中资源是公共可访问的，系统的用户不再是特定群体。
Differing from traditional distributed systems, open systems possess resources accessible for public instead of only for a specifical group.
与传统的分布式系统不同的是，开放系统中资源是公共可访问的，系统的用户不再是特定群体。
Differing from traditional distributed systems, open systems possess resources accessible for public instead of only for a specifical group.
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