As an open source cloud storage scheme, HDFS is used by more and more large enterprises and researchers, and is actually applied to many cloud computing systems to deal with huge amounts of data. HDFS has many advantages, but there are some problems such as NameNode single point of failure, small file problem, hot issues, etc. For HDFS hot issues, this paper proposes a dynamic Replication mechanism of HDFS hot file based on cloud storage(HDFS-DRM). The mechanism includes a Replication of the dynamic adjustment mechanism and adding, deleting duplicate node selection mechanism in two parts, by increasing the NameNode, BlockMap parameters, it records the number of reading requests of each file in a certain period of time to decide whether to increase or decrease the number of copies. The mechanism presents a replica placement method based on stage historical information and node load and selects the appropriate node to add or delete copies of documents to improve the utilization efficiency of the data node storage space effectively. Experimental results show that, HDFS - DRM in hot files case, compared to native HDFS file system access latency is significantly reduced, HDFS-DRM can solve the hot issues successfully.
목차
Abstract 1. Introduction 2. Framework of Dynamic Replication mechanism system based on HDFS 2.1. Increasing access_log and Timer1 in NameNode 2.2. Adding a Separate Dynamic Replica Controller, its Main Functions 3. The Improvement of the BlockMap 4. The Node's Selection of Adding and Deleting Replication 4.1. The Selection of Node that Increase the Replication 4.2. The Selection of Node that Delete Replication 5. Experiment and Analysis 6. Conclusion Acknowledgement References
키워드
Cloud storageHDFShot filesdynamic Replication
저자
Mingyong Li [ College of Computer and Information Science, Chongqing Normal University, Chongqing, China ]
Yan Ma [ College of Computer and Information Science, Chongqing Normal University, Chongqing, China ]
Meilian Chen [ College of Computer and Information Science, Chongqing Normal University, Chongqing, China ]
보안공학연구지원센터(IJSIA) [Science & Engineering Research Support Center, Republic of Korea(IJSIA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Security and Its Applications
간기
격월간
pISSN
1738-9976
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Security and Its Applications Vol.9 No.8