David Arthur created KAFKA-14136:
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Summary: AlterConfigs in KRaft does not generate records for
unchanged values
Key: KAFKA-14136
URL: https://issues.apache.org/jira/browse/KAFKA-14136
Project: Kafka
Issue Type: Bug
Reporter: David Arthur
Assignee: David Arthur
Fix For: 3.3.0, 3.4.0
In ZK, when handling LegacyAlterConfigs or IncrementalAlterConfigs, we call
certain code paths regardless of what values are included in the request. We
utilize this behavior to force a broker to reload a keystore or truststore from
disk (we sent an AlterConfig with the keystore path unchanged).
In KRaft, however, we have an optimization to only generate ConfigRecords if
the incoming AtlerConfig request will result in actual config changes. This
means the broker never receives any records for "no-op" config changes and we
cannot trigger certain code paths.
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