Distributed data processing program, information processing apparatus, distributed database system and distributed system

摘要

PROBLEM TO BE SOLVED: To provide a distributed data processing program for improving data search efficiency, an information processing apparatus, a distributed database system, and a distribution system.SOLUTION: Database nodes 2 are connected to each other, to constitute a distributed database system, and store pairs of keys and data to be used for searching. The key is a binary character string. The database node stores data of consecutive keys included in one range (partition) in the order of character string defined in the binary character string. The data included in the partition is stored redundantly in another database node 2. The database node includes: a memory 21 for storing partition list information 212 formed by associating the partition and the database node 2; a control unit 20 which refers to the partition list information 212 to search for data, on receipt of a processing request for the data paired with one key, and processes the data.SELECTED DRAWING: Figure 2