Fail-safe Computer Cluster

Installation and parameterization of a high availability webserver cluster with 2 servers. System environment is SuSE Linux, Apache, MySQL, using the high-availability software HA-Linux.

• master-slave system with primary server

• permanent synchronization of affected file systems

• MySQL master-slave replication

• monitoring and alerting changes in operation status

• command line tool for a fast switch-back of the cluster when the primary server is ready for operation after failovers