主机外航数据处理问题分析及解决

世界航空业的快速发展，带来中航信系统中国内国际航班数据的持续大量增加,由于数据文件的设计及算法原因，处理外航数据时需占用的DBA空间越来越大，然而系统DBA空间不能无限扩大,当DBA空间无法满足计算需求时，将导致525或Storage full错误。本文在基于原来数据结构不变的情况下．调整了数据录入算法，当某城市对对应的航班计划数据达到某个限制之后，将不再增加新的航班计划数据,即不再支持航班计划数据无限扩张，修改后系统运行正常，航班计划和路由数据受影响很小．大大减少了航信主机处理外航数据时的525及Storage full错误。

Analysis of Problem in Other Airline Data Processing on Mainframe

The rapid progress of world airlines enhanced the enlargement of host/non host airlines data in Travelsky. For the primary data structure and arithmetic, more airlines data means more DBA needed when dealing with other airlines data, while the DBA in Mainframe system can not be enlarged without limit, when DBA can be allocated less than needed 525/storage full mistakes will occur. In the article, data input arithmetic is modified base on the primary data structure, when the schedule data for one city pair reached the limit, no new schedule data will be input anymore, the schedule data will never be enlarged without limit anymore. The system run well, and few data affected, 525/storaged full mistakes are reduced obviously.