QiuMM edited a comment on issue #6587: emit maxLag/avgLag in KafkaSupervisor URL: https://github.com/apache/incubator-druid/pull/6587#issuecomment-438523967 @gianm for metrics, I think it's enough to emit max lag, average lag and total lag across all partitions. In my scenario, some kafka topics have 1000 partitions, so there will be lots of metric events if emit lag for each individual partition. If people want to look at the lag for each individual partition, they can get status of a supervisor through endpoint `/druid/indexer/v1/supervisor/{id}/status`. (overlord console ui has enabled this `status` endpoint).
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