Luke Chen created KAFKA-13628:
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Summary: Consider to provide a API to get the latest offset
commits without respect to a specific group
Key: KAFKA-13628
URL: https://issues.apache.org/jira/browse/KAFKA-13628
Project: Kafka
Issue Type: Improvement
Reporter: Luke Chen
context: KAFKA-13612.
Currently, getting the lag of Kafka Consumer groups need a lot of calls:
* poll every broker in the cluster with ListGroupsRequests
* send FindCoordinator requests for every group and put them in batches
* send DescribeGroupRequest to each coordinator with the batches of consumer
groups
* read the results out of the DescribeGroupResponses and go round the loop
again
There is a gap in the consumer administrative APIs and we should try to address
it with an API that can actually offer compatibility guarantees. For example,
perhaps we could introduce an OffsetQuery API or something like that to make it
easier to get the latest offset commits without respect to a specific group.
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