Method for clustering multiple nodes of memory database of power information system
A system memory and cluster system technology, applied in the field of multi-node clusters, can solve the problem that database I/O cannot meet the application requirements of real-time data processing, and achieve the effect of ensuring timing synchronization, integrity and consistency
Active Publication Date: 2014-07-02
STATE GRID ELECTRIC POWER RES INST +2
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[0002] Power information systems generally use traditional relational databases. Traditional relational database management systems mainly emphasize maintaining data integrity, consistency, and stability, and generally use physical disk storage. Due to disk access, internal and external storage data Delivery, buffer management, queuing, and lock delays make database I / O unable to meet the application requirements of various real-time data processing. If the entire database management system is put into memory, the I / O consumption of each transaction will become extremely high. Short, it provides strong support for high-speed data processing and storage application scenarios
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[0031] The implementation of the multi-node cluster of the memory database of the present invention will be further described below in conjunction with the accompanying drawings.
[0032] figure 1 Shown is the module structure diagram of the server. The server is composed of communication interface module, cooperative operation service, data service, scheduling management service, memory database and data archive. The communication interface module mainly completes the work of network communication and instruction analysis. The collaborative operation service mainly completes the collaboration with other nodes, including task collaboration, data collaboration, and timing collaboration. Task collaboration mainly includes the provision of the same data service, the same data persistence operation, and command execution result collaboration; data collaboration mainly completes the synchronous collaboration of the data versions of each node when the memory database is initialized...
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The invention discloses a technology for clustering multiple nodes of a memory database of a power information system. Memory database server nodes are formed by encapsulating the memory database, and can coordinatively supply database service. A uniform access service interface is used for performing external services and simultaneously managing and scheduling the coordination and operation of the memory database nodes in a cluster. According to the technology, the defects of low access speed, instable memory database and the like of the conventional relational data are effectively overcome, and a high-efficiency and stable memory database cluster is realized. By utilizing the method, three modes of mutual backup, expansion and mutual backup and expansion are supported, so that the method is suitable for scenes with different demands.
Description
technical field [0001] The invention relates to a multi-node cluster technology of a memory database, which is applied to an electric power information system. Background technique [0002] Power information systems generally use traditional relational databases. Traditional relational database management systems mainly emphasize maintaining data integrity, consistency, and stability, and generally use physical disk storage. Due to disk access, internal and external storage data Delivery, buffer management, queuing, and lock delays make database I / O unable to meet the application requirements of various real-time data processing. If the entire database management system is put into memory, the I / O consumption of each transaction will become extremely high. Short, it provides strong support for high-speed data processing and storage application scenarios. [0003] In order to ensure data security, traditional relational database management systems basically use multi-node cl...
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IPC IPC(8): G06F17/30
Inventor 唐汗青陈玉慧邱玉祥胡游君甘岚
Owner STATE GRID ELECTRIC POWER RES INST