Mixed tax administration data security protecting method based on erasure code and multi-copy

Abstract

The invention discloses a mixed tax administration data security protecting method based on erasure code and multi-copy. The method comprises the following steps: while the tax administration data of a tax administration data distributed storage system is normal, starting the multi-copy and erasure code storage mode storage flow of the tax administration data; and while the tax administration data of the tax administration data distributed storage system is failure, starting the tax administration data fault-tolerance processing flow. The method is capable of executing the sub-mode storage by using the tax administration data features of different times, distributing the erasure coding task to different nodes, using the mode of copy first and erasure code second, comprehensively improving the security of the whole tax administration data and the data recovery performance, improving the coding performance of the whole system, and guaranteeing the data security before finishing the erasure coding.

Description

technical field [0001] The invention relates to the technical field of computer data management, in particular to a security protection method for hybrid tax big data based on erasure codes and multiple copies. Background technique [0002] With the economic globalization and the continuous in-depth development of my country's economy, the number of taxpayers in my country has grown rapidly and the types of taxes have become more abundant. Facing the increasingly large tax data, distributed storage is a mainstream storage solution with high cost performance and scalability. For tax data, its data security in a distributed storage environment is a key point worth studying. A distributed storage system contains a large number of nodes, and node failure or external intrusion may lead to incomplete data. In order to avoid data loss, a fault tolerance method based on redundant data is usually adopted. There are two main types of redundant fault tolerance: one is multi-copy fault...

AI Technical Summary

Problems solved by technology

But multi-copy fault tolerance also has a very prominent disadvantage: high storage overhead

However, the disadvantage of erasure codes is that the performance of data reconstruction is low, especially in distributed storage. Since data reconstruction requires multiple nodes to cooperate with each other, it will inevitably lead to a large amount of network resource consumption and computing resource consumption.

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