Abstract: In a large-scale configuration management database (CMDB) which is built based on relationship databases, the function of relational query which is realized based on business scenes, turns out some disadvantages, it’s too complicated to construct a query and analysis statement, and it also needs a lot of time to execute. To solve these problems, the method to realize relational query function by using graph database is proposed. Making use of the consistency between the relationships of configuration items and graph data structure, the method constructs the configuration item relationships based on graph database. In order to realize the target of fast relational query, this paper designs and realizes a relational query module based on graph database, which is integrated into existing CMDB project with loose coupling. The experiment shows that the proposed method can solve the performance problem for relational query in CMDB.

Key words: large-scale, configuration management database, relational query, graph database, performance