The Research And Design Of Java Second Buffer Server

The system of communications network geography take a province as the unit, managing the telecommunication correspondence pipeline network of the whole province. The city distributes the scope general compare widely, all correspondence equipments and the correspondence circuit is shared by the telecommunication office. Therefore, adopt the structure of customer/server. The server is responsible for managing the system resources availably. When many customers request server at the same time of same resources, it's mainly function is to optimize these resources. The customer application program provided the parts for customer exchange datas. Network and the correspondence software is the tool to deliver the datas between customer and server. All the entity datas are stored in the center backstage database of the telecommunication resources system at present, the customers execute all operations (include: Data maintenance, go together with the line, monitor, diagram maintenance, search, statistics) of data objects are all obtain directly from the database, among them the search and statistic operations are often used. The telecommunication network resources information of the whole province is stored in the database, so the information quantity is very huge. The customers include all sub telecommunication offices and telecommunication offices. When customer quantity increment will bring very big pressure for the whole system backstage database, because all the datas that need to be queried and processed come from the same server, so the system response will become slowly, even lose response. Contrapose the problem, we need to distribute those datas which are too concentrated currently. The second buffer server is designed in such thought, dividing the whole GIS datas to the sub datas according to the districts; the datas of the sub-district deposit in the different second buffer servers, the customers operate the second buffer servers directly. The center server only accepts the operation of the customer modification datas, and then...