Jason Gustafson created KAFKA-9656:
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Summary: TxnOffsetCommit should not return COORDINATOR_LOADING
error for old request versions
Key: KAFKA-9656
URL: https://issues.apache.org/jira/browse/KAFKA-9656
Project: Kafka
Issue Type: Bug
Reporter: Jason Gustafson
In KAFKA-7296, we fixed a bug which causes the producer to enter a fatal state
when the COORDINATOR_LOADING_IN_PROGRESS error is received. The impact of this
bug in streams was that the application would crash. Generally we want users to
upgrade to a later client version, but in some cases, this takes a long time. I
am suggesting here that we revert this behavior for older versions of
TxnOffsetCommit. For versions older than 2 (which was introduced in 2.3),
rather than returning COORDINATOR_LOADING_IN_PROGRESS, we can return
COORDINATOR_NOT_AVAILABLE.
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