12c Data Pump Export Fails With ORA-39126: Worker Unexpected Fatal Error In KUPW$WORKER.FETCH_XML_OBJECTS  ORA-1403 and ORA-6512 Errors
Last updated on OCTOBER 11, 2017
Applies to:Oracle Database - Enterprise Edition - Version 126.96.36.199 and later
Information in this document applies to any platform.
On : 188.8.131.52 version, Data Pump Export.
You are attempting to perform an full or schema based export (EXPDP), and shortly after the estimate, the job fails with the following errors:
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.FETCH_XML_OBJECTS 
ORA-01403: no data found
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 86
ORA-06512: at "SYS.KUPW$WORKER", line 11254
Upgrade to 184.108.40.206 and change of PLSQL_OPTIMIZE_LEVEL from the default setting of 2.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
Million Knowledge Articles and hundreds of Community platforms