Calvin Liu created KAFKA-16250:
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Summary: Consumer group coordinator should perform sanity check on
the offset commits.
Key: KAFKA-16250
URL: https://issues.apache.org/jira/browse/KAFKA-16250
Project: Kafka
Issue Type: Improvement
Reporter: Calvin Liu
The current coordinator does not validate the offset commits before persisting
it in the record.
In a real case, though, I am not sure why the consumer generates the offset
commits with a consumer offset valued at -2, the "illegal" consumer offset
value caused confusion with the admin cli when describing the consumer group.
The consumer offset field is marked "-".
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