I set up an UpdateAttribute processor with the same configuration as the screenshot you sent and it worked for me.
What version of NiFi are you using? From: l vic <[email protected]> Reply-To: <[email protected]> Date: Friday, November 16, 2018 at 1:53 PM To: <[email protected]> Subject: UpdateAttributes use problems Hello, I am trying to use UpdateAttributes remove 'value_filter" and "name" attributes from flowfile and add timestamp attribute, so I specified "value_filter | name" in "DeleteAttributesExpression" and added attribute "ts" with value '${now():toNumber()}'... No changes in resulting flowfile and no failures. What am i doing wrong? Thanks,
