David Mao created KAFKA-14144:
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Summary: AlterPartition is not idempotent when requests time out
Key: KAFKA-14144
URL: https://issues.apache.org/jira/browse/KAFKA-14144
Project: Kafka
Issue Type: Bug
Reporter: David Mao
[https://github.com/apache/kafka/pull/12032] changed the validation order of
AlterPartition requests to fence requests with a stale partition epoch before
we compare the leader and ISR contents.
This results in a loss of idempotency if a leader does not receive an
AlterPartition response because retries will receive an INVALID_UPDATE_VERSION
error.
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