@sheep ,   You need to add an EvaluateJsonPath processor before your PutHBaseJson to extract the value that you need and save it as an attribute in the flowfile. For example, you could get the value from $.field1.nestedfield and save that as the attribute mynestedfieldvalue. You can then refer to that attribute in your PutHBaseJson processor as ${mynestedfieldvalue}.   Please check out this other answer to a similar question: https://community.cloudera.com/t5/Support-Questions/Hash-key-value-missing-putdynamodb-nifi/m-p/339622/highlight/true#M233139   Cheers, André ... View more