12c Data Pump Export Fails With ORA-39126: Worker Unexpected Fatal Error In KUPW$WORKER.FETCH_XML_OBJECTS  ORA-1403 and ORA-6512 Errors
(Doc ID 2136399.1)
Last updated on APRIL 03, 2020
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
On : 18.104.22.168 version, Data Pump Export.
You are attempting to perform a full or schema based export (EXPDP), and shortly after the estimate phase, the job fails with the following errors:
ORA-39126: Worker unexpected fatal error in KUPW$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 22.214.171.124 and change of PLSQL_OPTIMIZE_LEVEL from the default setting of 2.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document