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Real-time database subscription system and method

A database and data technology, applied in the field of data processing, can solve the problems of wasting network traffic, wasting space efficiency, increasing costs, etc., and achieve the effects of solving redundancy and storage problems, reducing time complexity, and increasing efficiency

Active Publication Date: 2015-04-22
ZHEJIANG SUPCON INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the problems of wasting network traffic, wasting space efficiency, and increasing costs in the median number subscription system in the prior art, and provides a real-time database subscription system with high efficiency and low cost

Method used

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  • Real-time database subscription system and method

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Embodiment

[0028] A real-time database subscription system in this embodiment, such as figure 1 As shown, it includes several clients 1, primary server 2, cache database 4, and backup server 2. There can be multiple backup servers. Here, one backup server is taken as an example. Both the primary server and the backup server include subscription distribution service modules with bit numbers 5. The two location number subscription distribution service modules are respectively connected to several real-time databases 6, the cache database is respectively connected to the two location number subscription distribution service modules, and several clients are respectively connected to the two location number subscriptions through the system bus on the distribution service module.

[0029] The client is used to initiate or cancel a subscription request, and stores subscription tag data.

[0030] The bit number subscription distribution service module is used to accept the data sent by the real...

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Abstract

The invention relates to a real-time database subscription system and method, and aims to solve the problems of waste of network flow, waste of spatial efficiency and increase of cost in a bit number subscription system in the prior art. The system comprises a plurality of clients, a master server and a cache database, wherein the master server comprises a plurality of real-time databases and a bit number subscription and distribution service modules; the clients are connected with the bit number subscription and distribution service modules respectively through system buses; the real-time databases are connected with the bit number subscription and distribution service modules respectively; and the bit number subscription and distribution service modules are connected with the cache database. The subscription method comprises a subscription step, an un-subscription step and a change and up-transmission step. The real-time database subscription system and method have the advantages that subscription information is placed into different slots, so that the redundancy and storage problems of the subscription information are solved, and the efficiency is increased. A multi-service-coexistence hot standby mode is adopted, so that the security is enhanced. The network and calculated amount loads are mean, and resources are fully utilized.

Description

technical field [0001] The invention relates to a data processing technology, in particular to a real-time database subscription system and method with high efficiency and low cost. Background technique [0002] In the traditional real-time database system, the tag data requested by the client is mostly used for direct query or overall subscription, and the service itself saves the entire subscription information. Direct query is inefficient and does not support change upload, which wastes network traffic; overall subscription is the method adopted by most real-time databases at present. Although it supports change upload, it is difficult to maintain subscription information when the amount of subscription information is large, and when After the subscription service is abnormal or restarted, the client needs to re-subscribe, which is a waste of time. In addition, when the master and backup are redundant, the two subscription services do not know each other, and the client s...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08G06F17/30
Inventor 袁超张生飞骆张杰曹辉
Owner ZHEJIANG SUPCON INFORMATION TECH CO LTD
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