Hi, Recently, I am using PrometheusReporter to monitor every metrics from Flink.
I found that the metric name in Prometheus will map to the identifier from User Scope and System Scope [1], and the labels will map to Variables [2]. To monitor the same metrics from Prometheus, I would like to use labels to differentiate them. Under the job/task/operator scope, it words fine to me. However, its not convenient to me to monitor partitions' states from Kakfa consumer, because I couldn't place partition id like a tag on each metric. All partition states like current commit offset will be a unique metric in Prometheus. It's hard to use visualization tool such as Grafana to monitor them. My question is: Is it possible to add tags on Metric, instead of using `.addGroup()`? If not, will it be a new feature on Flink Metrics in the future? Since I am not sure about how other reporters work, I am afraid that it is not a good design to just fulfill the requirement on particular reporter. Please guide and thanks for your help. Best Regards, Tony Wei [1]: https://ci.apache.org/projects/flink/flink-docs-release-1.3/monitoring/metrics.html#scope [2]: https://ci.apache.org/projects/flink/flink-docs-release-1.3/monitoring/metrics.html#list-of-all-variables
