Before you upgrade

Make sure that you have reviewed and completed all prerequisites described above.

Cloudera recommends that you perform backup of your databases before beginning the upgrade.

  • Ambari database

  • Hive Metastore database (after the pre-upgrade tool runs compaction)

  • Oozie Server database

  • Ranger database

  • Ranger KMS database

  • Druid database

  • Superset Database