ORA-39126: Worker unexpected fatal error in KUPW-WORKER.PREPARE-DATA-IMP 71 ORA-06512: at "SYS.DBMS_SYS_ERROR", line ... ORA-06512: at "SYS.KUPW_WORKER", line ... ORA-xxxxx: underlying error message – that’s the real cause. 3.2 Identify Failing Table Search for Processing object lines just before the error:
grep -A 20 "ORA-39126" import.log Typical stack: ORA-39126: Worker unexpected fatal error in KUPW-WORKER
impdp ... transform=segment_attributes:n # bypass storage clashes dump file checksum
If the error persists, contact Oracle Support with the full import log, dump file checksum, and parfile used. line ... ORA-06512: at "SYS.KUPW_WORKER"
This is a detailed technical review of the Oracle Data Pump error . 1. Error Overview | Attribute | Details | |-----------|---------| | Error Code | ORA-39126 | | Message | Worker unexpected fatal error in KUPW-WORKER.PREPARE-DATA-IMP 71 | | Component | Data Pump Import (impdp) | | Phase | Data loading preparation (before actual row insertion) | | Typical Severity | Fatal – Import job terminates |
-- Pre-create target table with partitions impdp ... exclude=table_data # import only metadata first -- Then retry with data and TABLE_EXISTS_ACTION=APPEND
