I have the following Nifi Flow: QueryDatabaseTable -> AvroToJSON -> SplitJSON -> ExtractText (write value to attribute) -> FetchDistributedMapCache (check if the attribute is available in cache, which is set in another flow) -> UpdateRecord (Rename some fields) -> MergeContent -> PutDatabaseRecord And sometimes this error occurs: The FlowFile is not routed to failure, but kept in the queue and the Processor is now stuck in an endless loop trying to process the faulty FlowFile. When i skip the MergeContent/MergeRecord Processor and just write to the database for each record this error does not occurr, but writing for each object is very slow. Why does this happen? How can I debug this? ... View more