Quick synchronization method for master and slave device data in cloud storage system

A cloud storage system and equipment data technology, applied in the input/output process of data processing, electrical digital data processing, instruments, etc., to achieve the effect of reducing management and maintenance costs, large management and expansion capabilities, and high query parallelism

Inactive Publication Date: 2016-04-06
LINYI UNIVERSITY
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  • Claims
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AI Technical Summary

Problems solved by technology

Improve and optimize the disadvantages of the existing operation log synchronization method, overcome the data synchronization bottleneck caused by a large number of concurrent write operations, and improve the data reliability of the cloud storage system

Method used

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  • Quick synchronization method for master and slave device data in cloud storage system

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Experimental program
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Embodiment Construction

[0012] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0013] The present invention is tested in a simulation environment where there is a distributed cluster system of 40 storage nodes, one of which is a main storage server and one is an auxiliary storage server. Then use a random algorithm to simulate the user's read and write data requests, construct a request model with Poisson distribution to generate a load pressure of 200 times / minute, then gradually increase the load pressure of the write request, and test the direct data synchronization delay between the main memory and the auxiliary memory ( milliseconds) to verify the validity of the invention by comparing the time when the method was not used with the time when the method was used. The test results are shown in Table 1:

[0014] Table 1 Data synchronization performance comparison table

[0015]

[0016] The above is only a p...

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Abstract

The invention discloses a quick synchronization method for master and slave device data in a cloud storage system; a data read-write operation log separation method is used; the technique of delayed submission of synchronization operation by local time slice is used; in order to solve the influence of fault generated by the master device on the data in delayed synchronization, the invention also provides an updating and searching method aiming at the distributed storage system. Basic technical support is provided for improving the performance and reliability of the cloud storage; high efficiency data synchronization between the master storage device and the auxiliary storage device in the cloud storage system is realized; the defect of the prior operation log synchronization method is improved and optimized; the data synchronization bottleneck resulted from a great deal of concurrent write operation; the data reliability of the cloud storage system is improved.

Description

technical field [0001] The invention relates to data reliability technology in a cloud storage system, in particular to a method for quickly synchronizing data of master and slave devices in a cloud storage system. Background technique [0002] The cloud storage system is a typical distributed storage system. The user's storage request is processed by the main memory, and the main storage device is in a working state. In order to ensure the reliability of the cloud storage system, the auxiliary storage device is always kept in the hot backup state. When the main storage device fails, the auxiliary storage replaces the main storage and switches from the hot backup state to the working state. Therefore, in the cloud storage system, the direct data between the main storage and the auxiliary storage should be kept in strict consistency, otherwise there will be a serious loss of user data loss when a failure occurs. [0003] In the existing cloud storage system, the direct data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0617G06F3/0604
Inventor 王海峰刘海涛王瑾曹云鹏
Owner LINYI UNIVERSITY
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