Condition retrieval data storage method, condition retrieval database cluster system, dispatcher, and program

摘要

PROBLEM TO BE SOLVED: To provide a condition retrieval data storage method, a condition retrieval database cluster system, a dispatcher and a program, which enable retrieval based on an element of a value while suppressing the total amount of data to be stored.SOLUTION: When storing data of an original file in each server, a dispatcher of a condition retrieval database cluster system creates a disassembly file for each of a key and a value included in the original file, determines positions of the servers by applying discontinuous and continuous hash functions to a value of the key, and allows each of the determined servers to store the data of the original file. In addition, the dispatcher determines a position of the server by applying a discontinuous or continuous hash function to an element of the value, and allows the server to store the element of the value, and the value of the key of the original file.