计算机工程2012，Vol.38Issue(21)：40-44,5.DOI:10.3969/j.issn.1000-3428.2012.21.011
Namenode单点故障解决方案研究
Research on Namenode Single Point of Fault Solution
摘要
Abstract
Based on the analysis of the Secondary Namenode mechanism, Backup Node mechanism and Facebook Avatar mechanism, an improved scheme of Avatar is proposed to solve the Single Point of Fault(SPOF)of Namenode existing in Hadoop Distributed File System(HDFS) which is a distributed file system of Hadoop. Client request is transmitted from the master node to standby node, and the Zookeeper is used to take over failover. And then the SPOF of Namenode is solved. The correctness of this program is verified by Petri net modal in theory and the quantitative analysis of its availability is conducted by storage network fault repairing model based on finite element method. Experimental result demonstrates the advantages of this program which are nonvolatile, fast failover and automatic failover.关键词
云计算/单点故障/Hadoop分布式文件系统/高可用性/Petri网/故障恢复Key words
cloud computing/ Single Point of Fault(SPOF)/ Hadoop Distributed File System(HDFS)/ High Availability(HA)/ Petri net/ fault recovery分类
信息技术与安全科学引用本文复制引用
邓鹏,李枚毅,何诚..Namenode单点故障解决方案研究[J].计算机工程,2012,38(21):40-44,5.基金项目
国家自然科学基金资助项目(61105052) （61105052）
