Migrating from Cloudera Flow Management 2.1.7 to 4.11.0

Moving from Cloudera Flow Management 2.1.7, based on Apache NiFi 1, to Cloudera Flow Management 4.11.0, based on Apache NiFi 2, requires a migration rather than a standard upgrade. In-place or rolling upgrade between these two versions are not supported. You must deploy a new Cloudera Flow Management 4.11.0 environment, migrate your existing flows, and transfer them to the new instance or instances.

The Cloudera Flow Migration Tool supports this transition by applying predefined transformations to make NiFi 1 flows compatible with NiFi 2. It automates many complex and repetitive changes, although some components and configurations might still require manual updates and validation.

The migration documentation explains how to plan and perform the migration using the Cloudera Flow Migration Tool. It also provides best practices, reference information, and troubleshooting guidance.