I just updated my Logstash to 7.16.1... but I noticed warning in my conf when starting Logstash.
the same conf of Logstash works well in version 7.9.1
How do to fix this warning ?
I am using a Logstash docker image: 7.16.1
[WARN ][org.logstash.instrument.metrics.gauge.LazyDelegatingGauge][log_matchportail] A gauge metric of an unknown type (org.jruby.specialized.RubyArrayOneObject) has been created for key: send_to. This may result in invalid serialization. It is recommended to log an issue to the responsible developer/development team.