Title:
データベースシステムおよびデータ処理方法
Document Type and Number:
Japanese Patent JP6404892
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To restrict a delay of data reflection from a master to a slave within a prescribed target delay time when executing a heavy query of a data update type.SOLUTION: A master server device has a master side storage part, a master side request conversion part, a master side instruction execution part, and a master side replication execution part. A slave server device has a slave side storage part and a slave side replication execution part. The master side replication execution part transfers replication data of a query for which the master side request conversion part determines that the query is a normal query after completion of execution of the query by the master side instruction execution part, and transfers replication data of a query for which the master side request conversion part determines that the query is a heave query regardless of completion of execution of the query by the master side instruction execution part to the slave server device side.SELECTED DRAWING: Figure 1
Inventors:
Hirose Shigeo
Kanamatsu Mototaka
Katayama Taiga
Kanamatsu Mototaka
Katayama Taiga
Application Number:
JP2016245873A
Publication Date:
October 17, 2018
Filing Date:
December 19, 2016
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G06F12/00
Domestic Patent References:
| JP2013218635A | ||||
| JP2003122509A | ||||
| JP2014191497A |
Foreign References:
| WO2016117322A1 |
Attorney, Agent or Firm:
Shiga International Patent Office