Github user adfel70 commented on the issue:
https://github.com/apache/nifi/pull/2405
@markap14,
The schema registry still has a cache in
[here](https://github.com/apache/nifi/blob/7c1ce172232d5fd8ab2a1c1649a9dcbf1a9d08d7/nifi-nar-bundles/nifi-confluent-platform-bundle/nifi-confluent-schema-registry-service/src/main/java/org/apache/nifi/confluent/schemaregistry/client/CachingSchemaRegistryClient.java#L28).
There were previously 2 caches, that was the reason i removed the ones in
the rest client.---
