OK, Its unfortunate that  I did not get any help from the support community about this but the good news after several trials and many hours I was able to resolve it and Im sharing my experience to help those who might get stuck in the future regarding the same issue:   1- No need to set up any of the TLS properties if you are connecting to LDAP:// url and not LDAPS://. You can comment or remove this part. 3- Authentication Strategy: SIMPLE 2- Manager DN: if you are using windows  open Active Directory Administrative Center  (can be installed ). Do global search for one of the accounts you are familiar with and going to use, once located right click to select properties, scroll down to Extensions section and click Attribute Editor tab, locate the distinguishedName attribute and that will be the value to use in the Manager DN. It will be something like : CN=lastName.FirstName,OU=Standard Users,OU=Users,OU=LocationOU,OU=OrgName,OU=SomeOU,OU=AnotherOU,DC=DomainName,DC=com 3- Manager Password: the selected account password from above. 4-Url: The Ldap url, example : LDAP://ldap.DomainName.com/ 5- User Search Base: Use the Same string from Step 2 without the the account CN, Example: OU=Standard Users,OU=Users,OU=Location,OU=OrgName,OU=SomeOU,OU=AnotherOU,DC=DomainName,DC=com 6- User Search Filter:  This is what you will use to add user and login to nifi. What worked for me is the  "sAMAccountName={0}" which you can find set under the Attribute Editor (step 2)  and it refers to search by the user name (example: lastname.firstname). 7- Identity Strategy: USE_USERNAME   8- Make sure to add the provider name (Example: ldap-provider) to nifi.properties. 9- Restart nifi. 10- using the default admin account created when setting up secure TLS on the installation server (Example: my_username) to add the AD user to Users and Set the Policies using user name from above. 11- From another machine launch nifi from the browser and you should be prompted to log in. Login using the same account credential you added to nifi and you should be in.   Other helpful information can be found: https://pierrevillard.com/2017/01/24/integration-of-nifi-with-ldap/comment-page-1/   good luck.         ... View more

Can someone help please. Im trying to run a test pilot for to see if Nifi can be adapted as tool of choice. The tool is impressive in terms of capabilities and out of the box components but It cant be used if its not easily integrated with our environment. I tried calling support on the phone and left a message, contacted sales via email but no response. One of the factor we have to adapt a tool is the ease of getting support when needed and so far the coulder community is not showing that unless Im doing something wrong.   ... View more

Can someone answer my question please? Thank you ... View more

Thank you very much! After installing the proper java version the Groovy script started to work. ... View more

OK,  will try to install the required java version. My bad, I did not think that would cause the problem. Do I have to uninstall nifi and reinstall everything or just uninstalling\reinstalling java would suffice.? Thanks for your help ... View more

Im using single instance. I just ran the "java -version" command, and here is what I have: java version "14.0.1" 2020-04-14 Java(TM) SE Runtime Environment (build 14.0.1+7) Java HotSpot(TM) 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing) ... View more

Thanks for attending to my ticket. Im using what I think the latest nifi version 1.11.4. Running on windows 10 for testing. I was using script similar to what is provided in (https://community.cloudera.com/t5/Community-Articles/ExecuteScript-Cookbook-part-1/ta-p/248922 )  which seems to be outdated because the scripting languages there doesnt match what I see in the latest version of Nifi. None the less when I try your script it still fails with the same error (other scripts engine like python works fine): ExecuteScript[id=c461682d-0173-1000-f3bb-1a7ace8e772d] ExecuteScript[id=c461682d-0173-1000-f3bb-1a7ace8e772d] failed to process session due to Could not initialize class org.codehaus.groovy.classgen.Verifier; Processor Administratively Yielded for 1 sec: java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.classgen.Verifier     ... View more

Anybody can help with this please? I cant progress without resolving this error which seems to be related to Nifi\groovy configuration that prevents me from running any kind of groovy script from nifi. Thanks ... View more