[LI-CHERRY-PICK] LIKAFKA-59153: Adding throttling logs in consumer. #517
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When the consumer's fetch request is throttled by the KIP-219 mechanism, it receives an empty fetch response. The consumer should not log this as an error. Reviewers: Jason Gustafson <jason@confluent.io>
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Summary
This cherry-pick is to add logs for consumer throttling. It is part of the LIKAFKA-59153 as a follow up task of ACTIONITEM-873 and Incident 641.
Tests
Executed FetchSessionHandlerTest.
Original Commit Message
Reviewers: Jason Gustafson jason@confluent.io
Committer Checklist (excluded from commit message)