Migrating Hive 1-2 to Hive 3
If you have a large Hive metastore implementation, preparing the metastore for the upgrade by finding missing tables, missing partitions, and problematic SERDE definitions can take a long time. Cloudera Community tools can save significant time. For more information, see Expediting the Hive Upgrade. Check with your Cloudera account team resources regarding professional services.