Check SERDE Definitions and Availability
Incorrect SERDE definitions and a reference to a SERDE that does not exist can cause upgrade problems. If you do not expedite the Hive upgrade process, you need to manually check and correct SERDE definitions.
- Check SERDE definitions for correctness and check for SERDE availability.
Correct any problems found as follows:
- Remove the table having the problematic SERDE.
- Ensure the SERDE is available during the upgrade, so the table can be evaluated.