Information warehouse federation in subscription/release system and data synchronization method

A warehouse and federation technology, applied in transmission systems, electrical digital data processing, special data processing applications, etc., can solve problems such as inappropriateness, and achieve the effects of improving robustness, network load balance, and facilitating the federation environment

Inactive Publication Date: 2012-10-10
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method provides asynchronous updates between databases instead of synchronous updates, which may not read the latest data, so it is not suitable for distributed database systems that require real-time data synchronization

Method used

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  • Information warehouse federation in subscription/release system and data synchronization method
  • Information warehouse federation in subscription/release system and data synchronization method
  • Information warehouse federation in subscription/release system and data synchronization method

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] The technical idea of ​​the present invention is to seek a real-time data synchronization technology between information warehouses with simple structure, small network bandwidth occupation and strong engineering implementability without affecting the application program in the subscription / publishing system. This technology can aim at the characteristics of the subscription / publishing system, component information warehouse federation, and force the synchronization requests of multiple federation members in the federation to be executed serially in sequence, so as to ensure the correct completion of the federation synchronization process and improve the robustness of the entire subscription / publishing system , stability and fault tolerance.

[0042] combine figure 1 , the structure of the information warehouse (102) in the information ...

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Abstract

The invention provides an information warehouse federation in a subscription / release system and a data synchronization method. The information warehouse federation comprises a plurality of information warehouses identical in structure and equal in level. Each information warehouse comprises a data storage module, a synchronous processing module and a public service module. Other information warehouses in the federation can be notified of data in one information warehouse needing to be updated in a message-based manner by means of collaboration among the modules; the other information warehouses correspondingly update after receiving the updating message and return processed results to a message transmission source; and the message transmission source updates the self data after receiving feedback messages. The information warehouse federation and the data synchronization method have the advantages that the data synchronization method which is effective, rapid and easy to implement is provided for synchronization of real-time data among the information warehouses in the subscription / release system low in data size and updating frequency, robustness, stability and fault tolerance of the system are improved, and consistency of the data among the information warehouses forming the federation in the subscription / release system is guaranteed.

Description

technical field [0001] The invention relates to a distributed computer system, in particular to a federation of information warehouses in a subscription / publishing system and a method for synchronizing data among these federation members. Background technique [0002] The data synchronization of federated members of the information warehouse in the subscription / publishing system belongs to the category of data synchronization technology in the distributed system. At present, data synchronization in distributed systems mainly includes the following synchronization technologies: [0003] 1. Business Control Act [0004] 1.1. Traditional business control method [0005] In a distributed database system, a "transaction" is a series of indivisible operation sequences that transform the database from one consistent state to another. Due to the concurrent execution of global transactions and local transactions, data copies may be inconsistent . The traditional transaction contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G06F17/30
Inventor 张万松徐悦竹印桂生杨帆石天放董红斌王红滨
Owner HARBIN ENG UNIV
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