Dissertation > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Design and Performance Analysis > Fault-tolerant technology

Design and Implementation of Fault-Tolarance Test Platform for Distributed File System

Author WangXueJiao
Tutor WenDongXin
School Harbin Institute of Technology
Course Computer Science and Technology
Keywords Fault injection Distributed File System Fault tolerance test System call hijacking Server failure
CLC TP302.8
Type Master's thesis
Year 2011
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With the rapid development of modern information technology , it is the capacity of the storage system , the performance requirements while also increasing emphasis on fault tolerance . As a distributed file system for storage system management core level , also no doubt need to have higher fault tolerance at the same time , the fault tolerance of a distributed file system test to ensure that the quality of the system also will become particularly important . In-depth study of traditional fault tolerance test , two shortcomings traditional distributed file system fault tolerance test , fault injection is mainly by hand , is not only a waste of time and manpower , but also increases the human error occurred probability , lead to lower test accuracy ; second is to consider only the failure of the server level , incomplete coverage . This improved automated distributed test platform is designed and implemented , will be distributed in each node of the target system fault injection tools , the workload simulation tools and system monitoring tools to integrate , test the platform host can complete test ; this platform is a multi-level fault injection , fault set to cover the server level , directory and file-level , can be injected into the server failure , and the directory file operation failed , such as the failure to improve the fault coverage . In this paper, the research project requires a distributed file system architecture , fault tolerance mechanisms , as well as traditional fault tolerance test indicators rely , in accordance with the characteristics of the target system , service continuity , foreign service delay time and service performance degradation than three indicators test target system fault tolerance . Platform tools complement each other , in the testing process , the requirements of the different fault injection tool for fault injection predictor monitoring tools will give appropriate monitoring results , the work load simulation tools can simulate the work load with the test , the tester can be provided in accordance with the monitoring result and the load operation , the final test results is given . In this paper, the development platform of the target file system tests to verify the availability of the test platform , and gives the test results and analysis .

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