I have installed Nifi locally and recieved the below error, could some one please let me know what need to be done.      It would be great help if provided in detailed. thanks! ... View more

I have to implement one scenario using Nifi flow.   1. There is one attribute from upstream processor like     KeyValue : KGPYT 2. I have to find whether KeyValue is unique in the system or not , by validation from Database.    If it is not found in the database, the flowfile should be proceed to success and    if the value is present in database, it should be proceed to failure.   Please suggest me how to proceed in this case.   thanks! ... View more

I have to extract the first character from each string provided in the Flowfile attribute. Suppose I have one attribute as: KeyValue : Nifi Test Project Expected output :  Key1: NTP   Please let me know how to get this and which processor to be used.   Thanks in advance. ... View more

Is it possible to mask or greyed out the Token passed in Custom Property (Authentication )?   I have one Token received from one API and have to pass it to another request. Issue: If I pass the token in custom property, it will be visible to all users who can access the flowfile. I need to mask these token as these value are displayed in Attribute and Content.   Thanks for early response.       ... View more

I have to create one attribute with the following details: 1. There are two attributes are flowing from EvaluateJson Proecessor :    Location1 = $.place1 and Location2 = $.place2 2. There is one string like folder1 is to be append in these attributes as mentioned below: Place : /folder1/Location1/Location2   I am trying with the below expression: path: ${path: append("folder1/"):append(${Location1}):append('/'):append(${Location2})} Please let me know where I am doing wrong.   Early reply will be highly appreciated.   thanks & regards   ... View more