| 摘要 |
PROBLEM TO BE SOLVED: To provide a replication system, a master server, a replica server, a replication method, and a program, for continuing processing when a failure occurs while preventing deterioration of throughput when a replication is executed by using a cluster system. SOLUTION: A database system 2 is provided with: a master database 13; master servers 10-1 to N, and individual databases 11-1 to N. The database system 3 is provided with a replica database 21 and a replica server 20. Each master server stores an update log for processing to the master database 13 in the individual databases, and adds time information to the update log, and transmits the update log with the time information added thereto to the replica server 20. The replica server 20 merges the update log based on the time information, and generates a file for reflecting the update in the replica database 21, and executes the replication by using the file. COPYRIGHT: (C)2011,JPO&INPIT |
