ORA-03135 – RMAN Duplicate

ORA-03135 – RMAN Duplicate

RMAN Duplicate database failing with error ORA-03135:

RMAN-06900: warning: unable to generate V$RMAN_STATUS or V$RMAN_OUTPUT row
RMAN-06901: warning: disabling update of the V$RMAN_STATUS and V$RMAN_OUTPUT rows
Oracle error from target database:
ORA-03135: connection lost contact
Process ID: 375403
Session ID: 3607 Serial number: 16432


The oerr utility shows this for the ORA-03135 error:

ORA-03135: connection lost contact


1) Server unexpectedly terminated or was forced to terminate.

or 2) Server timed out the connection.


1) Check if the server session was terminated.
2) Check if the timeout parameters are set properly in



Set SQLNET.EXPIRE_TIME=5 parameter in SQLNET.ORA file on the Auxiliary and Target (Doc ID 1625325.1)