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Load balancing management system of large-power-network real-time database system

A load balancing and management system technology, applied in the direction of electrical digital data processing, special data processing applications, transmission systems, etc., can solve problems such as inability to support load balancing, and achieve the effect of improving data operation performance, high concurrent response, and enriching applications

Active Publication Date: 2013-05-08
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, directly applying distributed parallel real-time databases to power systems cannot support load balancing

Method used

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  • Load balancing management system of large-power-network real-time database system
  • Load balancing management system of large-power-network real-time database system

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Embodiment Construction

[0037] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] The load balancing management system proposed in this embodiment realizes load balancing from both static and dynamic aspects, and the process is as follows:

[0039] This embodiment provides a load balancing management system for a real-time database system oriented to a large power grid. The real-time database system is N parallel database systems, and the table files of each database system are divided into M sub-tables and stored in Q sub-tables. On the data node, N, M, and Q are positive integers.

[0040] The load balancing management system includes a table file splitting module, a storage module, a heartbeat module, a metadata management module, and a load balancing judgment module;

[0041] The table file splitting module is used to split the table file according to the number of nodes and the size of th...

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Abstract

The invention discloses a load balancing management system of a large-power-network real-time database system. The real-time database system is a parallel database system, and table files of the real-time database system are divided into M sub-tables and are stored on Q data nodes. The load balancing management system comprises a table file division module, a storage module, a heartbeat module, a metadata management module and a load balancing judgment module. The table file division module is used for dividing the table files according to the number of the nodes and sizes of the table files, the storage module is used for storing the divided table files into the data nodes, the heartbeat module is used for communicating the data nodes with management nodes, the metadata management module is used for managing the correspondence of the sub-tables and the data nodes, and the load balancing judgment module is used for judging whether the load of the system is balanced. The load balancing management system of the large-power-network real-time database system not only guarantees high concurrency and response of the parallel real-time database, but also guarantees load balancing of nodes in the cluster and load balancing of each database table file.

Description

technical field [0001] The invention belongs to the technical field of power system control, and in particular relates to a load balancing management system for a real-time database system facing a large power grid. Background technique [0002] In the existing power dispatching technical support system, a real-time database is used to store and manage real-time data such as remote measurement and remote signaling. With the development of the power grid, the amount of real-time measurement data continues to increase, and the efficiency and storage bottlenecks of the real-time database used in the existing dispatch automation system are becoming more and more obvious. [0003] In order to solve the above problems, distributed parallel real-time database came into being. The distributed parallel real-time database is composed of multiple nodes, which provide services at the same time and provide very powerful support for high concurrent access. [0004] However, directly app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G06F17/30
Inventor 孙其强李立新狄方春黄文英任晓辉林静怀江凡谢巧云花静闫湖黄运豪季知祥袁荣昌李大鹏王威
Owner CHINA ELECTRIC POWER RES INST
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