Method and apparatus for database fault tolerance with instant transaction replication using off-the-shelf database servers and low bandwidth networks

摘要: This invention concerns providing a fault tolerant data service using multiple redundant off-the-shelf-database servers connected by low bandwidth networks. The continues operation regardless partial processing hardware failures, network operating system failures and incidental database malfunctions. A gateway automatically replicates communication packets monitors the wellness of networks supporting servers. It can quickly identify unstable connection or server, thus highly reliable to all clients. An algorithm is disclosed accomplish these tasks minimal original client data.