is a generic "unhandled exception" within the Data Pump worker process, typically occurring during the initial setup of an import job. While the code
: Attempting to import system-related schemas (e.g., SYSMAN , XDB ) across different versions or platforms frequently triggers this error.
What was the in the trace file? (e.g., ORA-01403, ORA-06512) Are you importing specific schemas or a full database ? is a generic "unhandled exception" within the Data
Arthur froze. The error code ORA-39126 was generic, a catch-all for "something terrible happened inside a Data Pump worker process." The specific location— KUPW$WORKER.PREPARE_DATA_IMP —told him the failure happened during the data preparation phase. The job wasn't just paused; it was dead.
As noted, applying the specific patch for your version is the most effective long-term solution. Contact Oracle Support for the appropriate patch if it's not publicly available for your environment. The job wasn't just paused; it was dead
He scrambled to check the log file, his fingers shaking slightly over the keyboard.
If the Data Pump internal packages (like KUPW$WORKER ) or the database catalog are invalid or out of sync, workers will fail. The job wasn't just paused
identifies the specific internal routine failing, this error often stems from environment mismatches or corrupted Data Pump metadata. Potential Causes Permissions & Sessions : Running Data Pump as
Ensure you are only importing application-specific schemas and explicitly excluding system-maintained schemas to prevent internal worker failures.