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Method and system for cleaning synchronous data

A technology for synchronizing data and data, applied in transmission systems, electrical components, etc., can solve problems such as huge system pressure, and achieve the effect of adding extra burden, solving synchronization data cleaning, and increasing the difficulty of data acquisition.

Active Publication Date: 2014-03-12
NANJING ZHONGXING XIN SOFTWARE CO LTD
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  • Claims
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Problems solved by technology

The same synchronization is regarded as an atomic operation, and all synchronizations in this synchronization are successful, and then deleted at one time. This method will cause huge pressure on the system when encountering an abnormal situation

Method used

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  • Method and system for cleaning synchronous data

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Embodiment Construction

[0033] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0034] see figure 1 as shown, figure 1 It is a schematic diagram of a distributed system structure, including a central node and an edge node. The central node includes a business processing module, a central database, and a central synchronization module, and the edge node includes a business processing module, a node database, and a synchronization module. Externally modify the central database through the business processing module, add, modify, and delete database data.

[0035] The central node obtains the mapping relationship between the tables from the central database mapping relationship table, constructs the mapping relationship, and is used to represent the hierarchical relationship between the tables, and the mapping relationship between the central node and the edge node table name; obtains node information for fast ...

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Abstract

The present invention discloses a method and a system for clearing synchronous data. The method comprises the following steps of: transmitting a synchronization message to an edge node by a central node for data synchronization; after receiving a synchronization response message returned from the edge node, judging whether the synchronization is successful by the central node; if yes, judging the type of a data table corresponding to the returned synchronization response message; if the data table is an extensible table, further judging whether the extensible table is also a base table; if the extensible table is also the base table, summing the number of successful tables corresponding to the base table; if the extensible table is not the base table, amending a time stamp of a task-driven table and deleting the data to be cleared in the extensible table; judging whether the extensible table corresponding to the base table is completely and successfully synchronized; and if the base table is completely and successfully synchronized, amending the time stamp of the synchronization task-driven table corresponding to the base table, deleting the data to be cleared in the base table and recording the synchronization success of the base table. The present invention can better solve the problem of clearing synchronous data.

Description

technical field [0001] The invention belongs to the technical field of distributed video monitoring, and in particular relates to a method and system for cleaning synchronous data. Background technique [0002] With the rapid development of information technology and network technology, distributed databases and distributed information systems have been more and more widely used, and the problem of data synchronization between various distributed databases and application systems has also become prominent. In the field of distributed databases, the central node database records the information of all nodes, and the configuration information is sent to the edge nodes through the central node, and the edge nodes provide data query operations. [0003] The organization of the central database table of the distributed video surveillance system is as follows: [0004] data sheet [0005] base table(data, nodeid, updatetime, syncflag) [0006] Extended table(data, base table fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/1095
Inventor 郑洛
Owner NANJING ZHONGXING XIN SOFTWARE CO LTD
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