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The algorithm of file backup and distribution dynamic adjustment in Telecom data Warehouse based on cloud platform

Source: Internet
Author: User
Keywords Adjust algorithm file backup
Tags access analyzing backup based cloud cloud platform configuration consumption
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The algorithm of file backup and distribution dynamic adjustment in Telecom data Warehouse based on cloud platform

Yang Miaomiao Li Fai Liu Jinghu

Hadoop leverages a unified backup mechanism to ensure data availability and fault tolerance. However, for important blocks of files, you can only set the number of replicas by modifying the configuration file. By analyzing the access situation of data Warehouse files in telecom industry, this paper proposes a dynamic adjustment algorithm (BPDA) for file backup and storage to improve the data locality, so as to reduce the I/O and network consumption caused by data transmission, and to improve query efficiency. The optimal backup number and backup location of each file are obtained by using the multiple replica consistency hashing algorithm, probability sampling and competitive weakening algorithm. Experimental results show that the proposed algorithm can improve query correlation efficiency.


The algorithm of file backup and distribution dynamic adjustment in Telecom data Warehouse based on cloud platform

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