Adaptive allocation method and device and adaptive replica consistency method

Abstract

The invention provides an adaptive allocation method and device and an adaptive replica consistency method. According to the adaptive allocation method, file heat of a file to be allocated at each time point can be calculated in real time, and the file heat degree value and a preset threshold at each time point can be judged; if the file heat degree value is larger than the threshold, the frequency, which is accessed by a user, of the file to be allocated is high, and in order to guarantee the user access efficiency, a replica strong consistency algorithm is allocated for the file to be allocated; if the file heat is smaller than the threshold, the frequency, which is accessed by the user, of the file to be allocated is low, and in order to avoid the waste of system resources, a replica eventual consistency algorithm is allocated for the file to be allocated. The aims of adaptively allocating proper replica consistency algorithms for different files, saving the network bandwidth and improving the overall performance can be fulfilled, and the problems that the system resources are wasted or the user access efficiency is low because only one replica consistency algorithm is used in all the files in the conventional distributed system are solved.

Description

technical field [0001] The invention relates to the field of distributed systems, in particular to an adaptive allocation method and device, and an adaptive copy consistency method. Background technique [0002] There are many types of files in a distributed system, which include various data needed by users. Users will access or modify files when needed, so that files can adapt to user needs. In order to ensure the reliability of files during use The same file will store several backup files, and the backup file is called a copy of the original file in the distributed system. When the original file is damaged, the user can still access the copy, thus ensuring that the data in the original file is not lost. will be lost. [0003] When the user updates the original file, the user will only update the original file. In order to keep the copy consistent with the original file, the strong consistency algorithm of the copy and the final consistency algorithm of the copy are used...

AI Technical Summary

Problems solved by technology

If the copy strong consistency algorithm is used in the distributed system, then the system will perform the copy strong consistency algorithm for all file updates. For the files that users access less, the strong consistency algorithm will waste system resources. If the system is the final Consistency algorithm, for files accessed by users more often, it will reduce the access efficiency of files

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