Distributed Transactions Transaction may access data at several sites. Each site has a local transaction manager Each site has a transaction coordinator Global transactions submitted to any transaction coordinator TC1 TCn transaction coordinator TM1 TMn) transaction manager computer 1 computer n Database System Concepts-7th Edition 23.3 @Silberschatz,Korth and SudarshanDatabase System Concepts - 7 23.3 ©Silberschatz, Korth and Sudarshan th Edition Distributed Transactions ▪ Transaction may access data at several sites. • Each site has a local transaction manager • Each site has a transaction coordinator ▪ Global transactions submitted to any transaction coordinator