Abstract
In this paper, we design a fault-tolerant cluster management system for a cluster-based DBMS, called FTCM. To achieve it, FTCM manages the status of the nodes for a cluster-based DBMS as well as the status of the various DBMS instances at a given node. Using a graphical user interface (GUI), FTCM gives users a single virtual system image by showing the status of all of the nodes and resources for a cluster-based DBMS. In addition, we implement our FTCM by using Linux virtual server 0.81 as a load balancer and iBASE/Cluster as a cluster-based DBMS, under a cluster system with four server nodes. It is shown from our performance analysis that the sensing and recovery time of FTCM for the iBASE/Cluster is about 2 seconds while that of OCMS for Oracle DBMS is more than 20 seconds. Finally, we show that our FTCM can support nonstop service by performing its recovery procedure even in the case where all the nodes except one have failed.
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