https://community.cloudera.com/t5/Support-Questions/Update-JSON-Element-w-FlowFile-Attribute-Nifi/m-p/149708#M112226 <P>You could use UpdateAttribute processor; it has "Delete Attributes Expression" property, where you can specify the Old attribute that you want to delete; would that work ?</P> Thu, 27 Oct 2016 01:26:55 GMT Raj_B 2016-10-27T01:26:55Z