Ora-39126 Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71

This error typically indicates that a worker process, which is responsible for executing a specific task during the import operation, encountered an unexpected fatal error while preparing data for import.

If the error persists after statistics are updated, the Data Pump utility itself may need to be reloaded to fix potential internal package corruption. Navigate to your $ORACLE_HOME/rdbms/admin directory. Run the following script as SYSDBA : @dpload.sql Use code with caution. Copied to clipboard

Stale or corrupt optimizer statistics in the source dump file can cause the worker to crash during the preparation phase. This error typically indicates that a worker process,

The PREPARE-DATA-IMP phase is critical because Data Pump must reconcile the source dump file’s metadata and data with the target database’s environment. Here are the most frequent triggers for this error:

The clock on the wall read 2:14 AM. Outside the server room, the city was asleep, but inside, the air conditioning hummed a monotonous drone. Arthur, the lead DBA, was running the final migration script for the company’s new CRM system. The stakeholder meeting was at 8:00 AM, and the data pump import job was at 94%. Run the following script as SYSDBA : @dpload

If the issue is caused by a corrupt Data Pump catalog, you can re-register the components by running the dpload.sql script as a SYSDBA user:

Importing a dump file from a much higher Oracle version into a lower version without using the VERSION parameter correctly. Step-by-Step Solutions 1. Exclude Statistics Here are the most frequent triggers for this

Data Pump can choke on metadata for objects that are in an INVALID state.