You are authenticated as: cn=Mohit Kumar,ou=FM-Users,ou=Managed services,dc=CORP,dc=SA,dc=ZAIN,dc=COM' But your policies are for: CN=Mohit Kumar,OU=FM-Users,OU=Managed services,DC=CORP,DC=SA,DC=ZAIN,DC=COM You can try to set the initial admin as the user that is authenticated (note the case sensitive): cn=Mohit Kumar,ou=FM-Users,ou=Managed services,dc=CORP,dc=SA,dc=ZAIN,dc=COM Stop Nifi, and delete users.xml and authorizations.xml files. Start Nifi and share the results by trying to log in again.         ... View more

 What processors are you using? List or Get files? ... View more

The nifi-user.log is showing the user "myuser", which belongs to the groups "bigG, bigdGer", does not have access to the /flow resource. You can check on the Ranger audit section, for the resource that is denied, then give access to the groups or the username to this resource.     ... View more

Can you check in nifi-users.xml the authorization error? This will show us the principal which is trying to connect. It should be the owner of the certificate store into keystore.jks. Make sure that matches with the principals that are created into users.xml ... View more

If you plan upgrade to Cloudera Flow Management 2.1.4, which includes NiFi 1.16, you can follow the migration Paths that are listed in the next document: https://docs.cloudera.com/cfm/2.1.4/upgrade-paths/topics/cfm-upgrade-paths.html   ... View more

You need to create a DBCPConnectionPool service and set the required connection properties. On DataBase driver location you can enter the folder where the jar files are located, this folder must be accesible by nifi service user and must be present in all of the NiFI nodes.   https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-dbcp-service-nar/1.16.0/org.apache.nifi.dbcp.DBCPConnectionPool/index.html   Then you can use a SQL processor, such as PutSQL to insert data into the data base: https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.16.0/org.apache.nifi.processors.standard.PutSQL/   ... View more

Can you share a snapshot of nifi-user.log file captured when you get 403 error?   ... View more

Can you share a screenshoot of current users listed on NiFI UI? Are the node listed?  Also provide the related failed authorization messages from nifi-user.log please. ... View more

What NiFi version are you running? Are you able to connect with ftp command from nifi host using same ftp credentials? ... View more

The node identity is taken from the owner of the keystore certificate. Make sure that each nifi node has its own keystore with the right private key certificate owner. And only one private key entry by keystore. ... View more