神马品牌网长沙高铁南站 送进站:大家好请大家帮我把下面一段话翻译成中文,谢谢
来源：百度文库 编辑：神马品牌网 时间：2024/05/02 20:39:01
While the front end is simple enough, the back-end processing used to handle the request is a little complicated. When a request first reaches the UPS site, it is handled off to one of a handful of Web servers. The particular server that is selected depends on a variety of factors such as the current load on the various machines. Next, the selected server passes the request to the appropriate application server. In this case, the application is tracking. From there the application server passes the request to an IBM AS/400 computer, which is attached to the UPS tracking database. Actually, this database is the largest transaction database in the world and contains over 15 terabytes of data. The mainframe actually does the database search for the status information associated with the tracking number. Once the information is found, it is passed back up the line through the various servers to the customer’s browser.
结果是：当前端足够简单, 后端处理使用处理请求是一少许复杂的。当请求首先到达UPS 站点, 它被处理到几台网络服务器的当中一个。被选择的特殊服务器取决于各种各样的因素譬如当前的装载在各种各样的机器。其次, 选择的服务器通过请求对适当的应用服务器。在这种情况下, 应用跟踪。从那里应用服务器通过请求对IBM AS/400 计算机, 附有UPS 跟踪数据库。实际上, 这个数据库是大笔买卖数据库在世界和包含数据15 terabytes 。计算机主机实际上做数据库查寻状态信息与相关追踪号码。一旦信息被发现, 这通过备份线通过各种各样的服务器对顾客的浏览器。