RMAN-06136: ORACLE error from auxiliary database: ORA-17629

RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of Duplicate Db command at 12/27/2018 16:03:36 RMAN-05501: aborting duplication of target database RMAN-03015: error occurred in stored script Memory Script RMAN-06136: ORACLE error from auxiliary database: ORA-17629: Cannot connect to the remote database server ORA-17627: ORA-12154: TNS:could not resolve the connect identifier specified ORA-17629: Cannot connect to the remote database server 问题原因：tnsnames.ora中只配了prod1的字符串。 解决办法：主备库同时在tnsnames.ora加入prod1和prod2. PROD1=   (DESCRIPTION =     (ADDRESS = (PROTOCOL = TCP)(HOST = hx01.example.com)(PORT = 1521))     (CONNECT_DATA =       (SERVER = DEDICATED)       (SERVICE_NAME = PROD1.example.com)     )   )   PROD2=   (DESCRIPTION =     (ADDRESS = (PROTOCOL = TCP)(HOST = hx02.example.com)(PORT = 1521))     (CONNECT_DATA =       (SERVER = DEDICATED)       (SERVICE_NAME = PROD2.example.com)     )   )