A distributed data center system protocol is provided which includes providing
a client having a failure detector, a primary data center, and a backup data center
operatively interconnected. A transaction operation is provided from the client
to the primary database server in the primary data center and the backup database
server for execution. If the client detects a failure or suspects a failure of
the primary database server, the transaction operation is provided to the backup
database server, which becomes the new primary database server. The database server
executing the transaction operation returns the executed transaction operation
to the client. If the primary data center suffers a disaster, the backup data center
takes over control.
