This illustration shows a two-phase commit diagram. There is a database on the left labeled "SID0"; its two-phase commit engine is "OracleCommitDS" and the user is "COORDUSR". Above it to the right is a database labeled "SID1"; it contains the text "JTA database 1 OracleDS1" and its user is "COORDUSR". Immediately below this is a third database labeled "SID2"; it contains "JTA datanase 2 OracleDS2" and its user is "COORDUSR". There is an arrow from SID0 to SID1 labeled "LINK1.machine1.com", and another arrow from SID0 to SID2 labeled "LINK2.machine2.com".