分布式服务层：在本层中，目标是指定为JMXManager组件提供的接口。
Distributed Services Level: In this level, the aim is to specify the interfaces that provide for JMX Manager components.
图3显示了该方法的优势，即在大型机上提供服务的虚拟化和聚合，而不是在分布式层具有单个esb实例。
Figure 3 shows the benefit of this approach by providing virtualization and aggregation of services on the mainframe, versus having a single ESB instance on the distributed tier.
第一层负责发现活动网络，轮询服务和设备是否出故障，以及截获或处理来自设备、服务或更高层分布式代理的异步事件。
It is responsible for active network discovery, polling for device outages and services, and intercepting or processing asynchronous events from devices, services, or higher level distributed agents.
分布式软件服务安全模型支持消息层授权。
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).
对分布式拒绝服务攻击的防护，传统的方法是采用路由访问控制列表过滤的防护方法，无法识别虚假地址和针对应用层的攻击，而且容易造成服务器无法向外部提供正常的服务。
The traditional detect method of adopting acl for DOS can not identify the attack aiming at the fake address and application layer, and easily made the server cannot apply the normal service for user.
本文为视频点播系统设计了一个分布式结合集群式数据共享的两层服务、三层存储的层次体系结构。
We design a distributed and data-shared hierarchical architecture which has two service levels and three storage levels.
超文本传输协议(HTTP)是一种为分布式，合作式，多媒体信息系统服务，面向应用层的协议。
The Hypertext Transfer protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems.
超文本传输协议(HTTP)是一种为分布式，合作式，多媒体信息系统服务，面向应用层的协议。
The Hypertext Transfer protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems.
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