zhijiangW commented on issue #8181: [FLINK-12199][network] Refactor IOMetrics to not distinguish between local/remote in/out bytes URL: https://github.com/apache/flink/pull/8181#issuecomment-484001811 Thanks for replies @azagrebin . Yes, we should confirm there only exists one local/remote metrics per task. Based on current implementation, it seems that the `ProxyMetricGroup` would only create on metric based on metric name even though we call create in all the channels, that means the other calls would reference with the previous created local/remote metric. So we might not worry about that. Agree with the point of operating total metrics temporarily in `SingleInputGate` before introducing `InputGateWithMetrics`.
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