We have been using the state backend latency tracking metrics from Flink 1.13. To make metrics aggregation easier, could there be a config to expose something like `state.backend.rocksdb.metrics.column-family-as-variable` that rocksdb provides to do aggregation across column families.
In this case, it would be the various components of state. https://ci.apache.org/projects/flink/flink-docs-release-1.13/docs/deployment/config/#state-backend-rocksdb-metrics-column-family-as-variable
