jdbc rac 설정 jdbc : oracle : thin :@( DESCRIPTION =( ADDRESS_LIST =( LOAD_BALANCE = OFF )( FAILOVER = ON ) ( ADDRESS =( PROTOCOL = TCP )( HOST = tst - db1 . myco . com )( PORT = 1604 )) ( ADDRESS =( PROTOCOL = TCP )( HOST = tst - db2 . myco . com )( PORT = 1604 ))) ( CONNECT_DATA = SERVICE_NAME = mydb1 . myco . com )( SERVER = DEDICATED ))) reference http://stackoverflow.com/questions/1646630/jdbc-what-is-the-correct-jdbc-url-to-connect-to-a-rac-database 성공과 실패 사례 jdbc:oracle:thin:@1.2.3.4:1521:SID //일반적인 방법, RAC으로 구성된 경우 위와 같은 에러 발생함. jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST= (ADDRESS=(PROTOCOL=TCP)(HOST=1.2.3.4)(PORT=1521)) (ADDRESS=(PROTOCOL=TCP)(HOST=1.2.3.5)(PORT=1521)) (FAILOVER=on)(LOAD_BALANCE=on) )(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=ZCGS))) //WebLogic 설정인데 오류가 발생함. failover가 description밖으로 나와야 할거 같다. jdbc:oracle:thin:@(DESCRIPTION=(FAIL_OVER=ON)(LOAD_BALANCE=ON)(ADDRESS_LIST= (ADDRESS = (PROTOCOL = TCP) (HOST = 1