Migrating from Cloudera Flow Management 2.1.7 to 4.12.0

Moving from Cloudera Flow Management 2.1.7, which is based on Apache NiFi 1, to Cloudera Flow Management 4.12.0 which is based on Apache NiFi 2, requires a migration. You cannot perform an in-place or rolling upgrade between these two versions. You must deploy a new Cloudera Flow Management 4.12.0 environment and migrate your existing data flows to it.

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, but 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 guidance for troubleshooting migration issues.