Cloudera Docs

Before you begin

This document describes the general steps required to move your NiFi dataflow and NiFi Registry versioned flows from an HDF 3.5.x or CFM 1.1.0 Standalone cluster to a CFM 2.0.x cluster in CDP Private Cloud Base.

Migration and upgrade scenarios

You have two options for moving to CFM 2.0.x.

  • Upgrade refers to a full in-place upgrade of CFM to CDP Private Cloud Base. For upgrade information see the Upgrade Guide.
  • Data migration refers to moving existing HDF cluster workloads to a new installation of CDP Private Cloud Base.

Migration paths

You must migrate from one of the following environments:

  • HDF 3.5.x

    • Standalone (Not managed by Ambari)

    • Ambari (with or without Ranger)

    • +HDP 3.1.5 and Ambari (with or without Ranger)

  • CFM 1.1.0

    • Standalone (Not managed by Cloudera Manager)

Additional requirements

  • You must migrate HDF 3.5.x or CFM 1.1.0 Standalone to an equivalent target environment. For example:

    • From HDF 3.5.x without Ranger to CFM 2.0.x without Ranger

    • From HDF 3.5.x with Ranger to CFM 2.0.x with Ranger

    • From CFM 1.1.x without Ranger to CFM 2.0.x without Ranger

  • You have deployed a CDP Private Cloud Base cluster with the necessary services running (ZooKeeper, Ranger, and similar) and out-of-the-box configurations.

  • You have sufficient networking connectivity and capacity between the source cluster and destination cluster.

  • You have the permissions required to access and modify files on cluster nodes.

  • You have consulted the Cloudera Flow Management Release Notes and are aware of known issues.

  • You have reviewed Apache NiFi Migration Guidance and Apache NiFi Registry Migration Guidance and are aware of any differences between source and destination components.