Algorithm Research & Explore
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1441-1447

Low recovery-overhead erasure codes based on multi-hierarchical check

Deng Wenjiea,b
Hong Tieyuana,b
Tang Dana,b
Wang Xiea,b
a. School of Software Engineering, b. Sichuan Province Informationization Application Support Software Engineering Technology Research Center, Chengdu University of Information Technology, Chengdu 610225, China

Abstract

With the practical application of erasure codes in distributed storage systems, erasure codes provide better storage efficiency for storage systems, but when nodes are lost, more network transmission bandwidth overhead compared with traditional replica technology becomes a key factor causing system performance bottlenecks. In order to solve the impact of high bandwidth overhead of MDS coding on system performance, a new type of coding scheme, packet coding, is applied in distributed storage systems. Compared with traditional MDS coding, it can effectively reduce the amount of data transmission during node repairing, thus reducing the network bandwidth demand. This paper proposed a HLRC(hierarchical local repair codes) based on the hierarchical expansion of Pyramid codes. HLRC introduced a hierarchical coding model compared to LRC, which constructed the original data blocks as a coding matrix, and coded according to the hierarchical levels to generate local checksum blocks with different ranges of data blocks. Each hierarchy contained a different number of data blocks, which ensured low repair cost and high storage efficiency when repairing nodes. HLRC had additional checksum block redundancy compared to Pyramid codes, which reduced the recovery overhead in the event of checksum block errors and multi-node errors. Experimental results in a Ceph-based distributed storage system show that HLRC can reduce single-node repair overhead by up to 48.56% and multi-node repair overhead by up to 25% compared to Pyramid codes and other packet codes.

Foundation Support

四川省科技厅重点研发项目(2022YFG0037,2022YFG0033)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.08.0399
Publish at: Application Research of Computers Printed Article, Vol. 41, 2024 No. 5
Section: Algorithm Research & Explore
Pages: 1441-1447
Serial Number: 1001-3695(2024)05-023-1441-07

Publish History

[2023-11-14] Accepted Paper
[2024-05-05] Printed Article

Cite This Article

邓文杰, 洪铁原, 唐聃, 等. 一种基于多层次校验的低恢复成本纠删码 [J]. 计算机应用研究, 2024, 41 (5): 1441-1447. (Deng Wenjie, Hong Tieyuan, Tang Dan, et al. Low recovery-overhead erasure codes based on multi-hierarchical check [J]. Application Research of Computers, 2024, 41 (5): 1441-1447. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.


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