Collecting data for upgrade

Collect passwords and Kafka broker IDs before you start the upgrade to make sure that required data is available during upgrade and post configuration.

Collecting Ranger passwords
If you use the Ranger service, you need to collect the passwords for Ranger.
Collecting NiFi Registry database password
You need to migrate the NiFi Registry database password manually during the upgrade.
Extracting Kafka broker IDs
You must extract the Kafka broker IDs before you upgrade the HDF cluster. The Kafka broker IDs are used in upgrading HDF to CFM on CDP cluster, where you need to override the kafka-broker-ids.ini files with the created one.

Parent topic: Before you upgrade