This guide outlines the prerequisites and steps for upgrading from Cloudera Flow Management 4.0.0 [Technical Preview] to 4.10.0 on Cloudera Base on premises.
    
      
        - 
          Ensure Cloudera Manager is running and accessible. 
- 
          Review the Download locations for the latest Cloudera Flow Management parcels and CSD files for your operating system. 
- 
          Have credentials ready to access Cloudera’s download repository. 
- 
        In Cloudera Manager, stop the following services in this order:
        
      
- 
        Navigate to the CSD directory and delete the old CSD JAR files.
      
- 
        Download the new CSD files for NiFi and NiFi Registry.
        
          For example: For RHEL8, use the following
            commands: wget https://<username>:<password>@archive.cloudera.com/p/cfm2/4.10.0.0/redhat8/yum/tars/parcel/NIFI-2.3.0.4.10.0.0-154.jar
              wget https://<username>:<password>@archive.cloudera.com/p/cfm2/4.10.0.0/redhat8/yum/tars/parcel/NIFIREGISTRY-2.3.0.4.10.0.0-154.jar
 
By default, Cloudera Manager stores CSD files in
            /opt/cloudera/csd. To change this location, go to . Make sure the files have appropriate ownership, access attributes, and
            SELinux permissions if applicable. 
 
- 
        Download the new Cloudera Flow Management parcel and associated
            .sha checksums file appropriate for your operating system.
        The default parcel location is  /opt/cloudera/parcel-repo/.
             Ensure that you maintain the appropriate file ownership and access attributes and
            SELinux permissions if needed.  
- 
        Restart the Cloudera SCM Server to recognize the new CSDs.
        
          systemctl restart cloudera-scm-server
 
 
- 
        Activate the parcel in Cloudera Manager.
        
          - 
            Go to Parcels.
          
- 
            Locate the Cloudera Flow Management
               parcel.
          
- 
            Click Distribute, then
              Activate.
          
- 
            In the pop-up, select Activate Only, then click
                OK.
          
 
- 
        Restart Cloudera Management Service.
      
- 
        Restart NiFi and NiFi Registry.
      
- 
        Deploy the client configurations.
      
- Optional: 
        To remove old parcels from the host:
        
          - 
            Go to the Parcels page.
          
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            From the Parcel menu, select the old Cloudera Flow Management parcel.
          
- 
            Click Remove From Host.
          
- 
            Click Delete to permanently remove the files.
          
 
- 
        In the Ranger UI, ensure proper access is set up for the NiFi service controller
          policy:
        
          - 
            Add the nifi user to the policy with READ permissions.
          
- 
            Verify that the nifi group is assigned to the policy.