Cloudera Docs

Managing NiFi nodes

Cloudera Manager helps you to handle NiFi clusters within the CDP Private Cloud Base environment. It simplifies the process of adding and removing NiFi nodes, providing a centralized and real-time view of the instances across your cluster. Through the Admin Console, you have access to a single, unified platform to facilitate configuration changes and streamline cluster management.

Adding a NiFi node

Follow these steps to add a NiFi node to your cluster.

The new NiFi node(s) will be added to your cluster. You should now be able to use the new instance seamlessly.

  1. Go to your cluster’s homepage on the Cloudera Manager UI.
  2. Open the NiFi service page by clicking NiFi in the list of services.
  3. Click Instances.
  4. Click Add Role Instance to initiate the process of adding a NiFi node.
    The Assign Roles page is displayed.
  5. Assign the NiFi roles to the relevant hosts and click Continueto proceed.
    The Review Change page is displayed allowing you to verify the configurations and assignments.
  6. If needed, update the NiFi properties according to your specific requirements.
  7. Click Finish to finalize the configuration process.
  8. Click Actions > Restart to restart the cluster.

The new NiFi node(s) will be added to your cluster. You should now be able to use the new instance seamlessly.

Removing a NiFi node

Follow these steps to remove a NiFi node from your cluster.

After successful completion, the NiFi node will be removed from your cluster, and everything should continue to function correctly without the instance you removed.

  1. Go to your cluster’s homepage on the Cloudera Manager UI.
  2. Open the NiFi service page by clicking NiFi in the list of services.
  3. Click Instances.
  4. Select the NiFi Roles associated with the node you wish to remove.
  5. Click Actions for selected > Decommission to initiate the decommissioning process.
  6. Once decommissioning is successfully completed, click Actions for selected once more and select Delete to remove the decommissioned roles.
  7. Click Actions > Restart to restart the cluster.

After successful completion, the NiFi node will be removed from your cluster, and everything should continue to function correctly without the instance you removed.