I tried to define the flow set ids for which I get warning as suggested in the thread here - https://github.com/elastic/logstash/issues/2002 but have the same issue.
Does the netflow codec fail and doesn't produce data through logstash output config if it finds some flow set fields missing? I guess the remaining fields/data should get generated/indexed if some are missing.
Is this a known problem or should I create a bug for logstash?
Thanks.