EM 12c : Standby Database Creation from EM Fails at "Duplicate Database" step with "ORA-03135: connection lost contact"

Last updated on SEPTEMBER 06, 2016

Applies to:

Symptoms

Standby database is being created from EM and the job fails at the "Duplicate Database" step with the below error:

sql statement: alter system archive log current 
contents of Memory Script:
 {
  switch clone datafile all;
 }
 executing Memory Script
 
 RMAN-00571: ===========================================================
 RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
 RMAN-00571: ===========================================================
 RMAN-03002: failure of Duplicate Db command at 08/01/2016 08:47:55
 RMAN-03015: error occurred in stored script Memory Script
 RMAN-06136: ORACLE error from auxiliary database: ORA-03135: connection lost contact
 Process ID: 56142
 Session ID: 424 Serial number: 9
  
 
 RMAN> EXIT;
 
 Recovery Manager complete.

Rest of the steps in the job complete successfully.
The errors occur when creating a standby database for a large database. Standby creation for a small database completes fine without any errors.

Cause