| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which, in a conventional batch processing system targeting a large amount of data, it takes time to transfer batch processing target data stored in a DB to a batch processing cluster at a time, so that the whole batch processing time becomes long.SOLUTION: Therefore, the present invention employs a method for allowing a batch management system to extract update information on data stored in a database server a plurality of times during a batch execution cycle, to store and manage update data in a period from the last update processing to the current update processing on the basis of the update information, and to sequentially transfer the update data to a distributed file system. |
