Github user tzulitai commented on the issue: https://github.com/apache/flink/pull/4187 Hi @zhenzhongxu, thanks for the PR. I like the idea of exposing these metrics. Regarding the metric naming: I think we also expose metrics that are directly available through the Kafka client. Apart from this PR, there was also previous discussion about adding other Flink-specific metrics to the connector (e.g., offset lag since last checkpoint). I wonder whether or not we should regulate the naming scheme for these Flink-specific metrics, to set them apart from Kafka's provided metrics. What do you think?
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