Hi @Michal R, I'd recommend to have a look at the variable registry: https://community.hortonworks.com/articles/57304/supporting-custom-properties-for-expression-langua.html Please note that this is only for processor properties supporting expression language, and that, at the moment, properties are loaded when NiFi starts. You cannot change the values while NiFi is running but variable registry will evolve in the near future. Hope this helps. ... View more

Hi @Andy Liang, If you want to apply "Need Authentication" (check that the user is correctly authenticated), then you need to fill the SSL context service property. For that you have to create a standard SSL context service where you provide keystore and truststore available on NiFi host that you want to use. The keystore will contain the key used by the server, the truststore will contain the certificates of the clients the server should trust. In your case the truststore should contain the certificate of the client you want to authenticate (or if you have one, you could use a Certificate Authority so that you don't need to add a new certificate for each new client). You may want to read: - https://community.hortonworks.com/articles/27033/https-endpoint-in-nifi-flow.html - https://community.hortonworks.com/questions/19476/connecting-to-facebook-graph-api-using-nifi-postht.html The latter is not about HandleHttpRequest but will maybe bring some clarifications around SSL context service. As a final side note: if you need to perform a login/password authentication like Basic Authentication (with HTTP headers), then you don't need all of this, and you just need to check the attributes sent by the user in the request with a RouteOnAttribute processor and using the expression language. Hope this helps a bit. ... View more

Just did the following in my env - Installed Ranger, enabled Hive plugin, created a table student with a single column name, created a user "test" and created a /user/test directory in HDFS, created a rule in Ranger to only allow read access (select) to the table student for user test. And here are my commands: https://gist.github.com/pvillard31/528d0d186d05422b0b9d1f3b94a85a02 It seems to be working as expected. In Audit / Plugins, can you check that the policies have been correctly synced with Hive? ... View more