Sophie Blee-Goldman created KAFKA-8609:
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             Summary: Add consumer metrics for rebalances
                 Key: KAFKA-8609
                 URL: https://issues.apache.org/jira/browse/KAFKA-8609
             Project: Kafka
          Issue Type: Sub-task
            Reporter: Sophie Blee-Goldman


We would like to track some additional metrics on the consumer side related to 
rebalancing as part of this KIP, including

 

1) total rebalance latency (latency from start to completion of rebalance)

2) per-callback latency (time spent in onPartitionsRevoked, 
onPartitionsAssigned, onPartitionsLost)

3) join/sync group latency (response_received_time - request_sent_time)

4) rebalance rate (# rebalances/day)



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