Migrating Between Source and Destination ZooKeepers

Before you begin, confirm that:

• You have installed the destination ZooKeeper cluster.

• You have installed and configured a NiFi cluster to use the destination ZooKeeper cluster.

• If you are migrating ZooKeepers due to upgrading NiFi from 0.x to 1.x,, you have already followed appropriate NiFi upgrade steps.

• You have configured Kerberos as needed.

• You have not started processing any dataflow (to avoid duplicate data processing).

• If one of the ZooKeeper clusters you are using is configured with Kerberos, you are running the ZooKeeper Migrator from a host that has access to NiFi's ZooKeeper client jaas configuration file (see the System Administration documentation in the Reference section for more information).