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Method for synchronous data synchronization of distributed system

A distributed system and data synchronization technology, applied in transmission systems, electrical components, etc., can solve problems such as waste of resources, achieve the effect of synchronizing and updating data in a timely manner, reducing the amount of system resources, and avoiding the waste of network resources

Inactive Publication Date: 2016-06-01
IOL WUHAN INFORMATION TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

Synchronization by polling method is a waste of resources

Method used

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  • Method for synchronous data synchronization of distributed system
  • Method for synchronous data synchronization of distributed system
  • Method for synchronous data synchronization of distributed system

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Embodiment Construction

[0032] Without loss of generality, the system parties involved in information synchronization are simplified into the following form: one information service center and three information clients. The general form of network-based connection between the information service center, that is, the server, and the client is as follows: figure 1 shown. The specific network connection method is not considered here, as long as the server and the client can communicate in a certain way.

[0033] The basic information is the data that needs to be used during the execution of data synchronization. The environment refers to the environment in which operations on data and interactions between systems can be performed.

[0034] Taking the synchronous data stored in the information service center as a whole, divide it. It can be a full division or a partial division of the synchronization data, which is set according to specific information synchronization requirements. An example of divi...

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Abstract

The invention relates to a method for information synchronization in a distributed system. The method comprises an information service center and a plurality of clients. Synchronous data are stored in an information service center. Synchronous data are stored into the information service center and a synchronization information table is set; when data of the information service center change, a data updating message is transmitted to a target client; after one client receives one data updating message, synchronous data are updated according to data difference information, and an information synchronization completion signal is sent to the information service center after updating; and after the information service center receives the synchronization completion signal, the synchronization information table is updated and then the data synchronization task is completed. According to the invention, a method for data synchronization by initiating synchronization by one terminal and carrying out responding synchronously by a synchronization terminal is employed, so that a defect of network resource wasting existing in the existing polling synchronization way can be overcome; and the system resource quantity needed for data synchronization can be reduced. Moreover, the data synchronization updating can be carried out timely and data integrity and uniformity of the distributed system can be guaranteed.

Description

technical field [0001] The invention relates to a computer distributed software system, in particular to a method for synchronizing information in a distributed system. Background technique [0002] In computer software systems, especially distributed systems, there are situations where information needs to be synchronized between multiple systems. Commonly used information synchronization methods include polling and notification. Synchronization by polling is a waste of resources. Because the query needs to be repeated at certain intervals, the cost of polling is determined by the polling interval. Notification is an asynchronous method, and the system in which information changes occurs notifies all systems that need to be synchronized that the information has changed. It is up to the system receiving the notification to decide how to synchronize the information. Contents of the invention [0003] The technical problem to be solved by the present invention is to prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/1095
Inventor 杜南山
Owner IOL WUHAN INFORMATION TECH CO LTD
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