metric kafka_log_log_size in grafana(datasource victoria metrics) I assembled metrics by kafka exporter(https://github.com/danielqsj/kafka_exporter) but metric kafka_log_log_size not going to.
how to build such a metric?
kafka.log:name=Size
is a JMX metric.
You need to use JMX exporter to get it, not "Kafka exporter"