Gantigmaa Selenge created KAFKA-16211:
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Summary: Inconsistent static config values in CreateTopicsResult
and DescribeConfigsResult
Key: KAFKA-16211
URL: https://issues.apache.org/jira/browse/KAFKA-16211
Project: Kafka
Issue Type: Bug
Components: controller
Reporter: Gantigmaa Selenge
When creating a topic in KRaft cluster, a config value returned in
CreateTopicsResult is different than what you get from describe topic configs,
if the config was set in broker.properties or controller.properties or in both
but with different values.
For example, start a broker with `segment.bytes` set to 573741824 in the
properties file and then create a topic, the CreateTopicsResult contains:
ConfigEntry(name=segment.bytes, value=1073741824, source=DEFAULT_CONFIG,
isSensitive=false, isReadOnly=false, synonyms=[], type=INT, documentation=null)
because the controller was started without setting this config.
However when you describe configurations for the same topic, the config value
set by the broker is returned:
Create topic configsConfigEntry(name=segment.bytes, value=573741824,
source=STATIC_BROKER_CONFIG, isSensitive=false, isReadOnly=false, synonyms=[],
type=null, documentation=null)
Vice versa, if the controller is started with this config set to a different
value, the create topic request returns the value set by the controller and
then when you describe the config for the same topic, you get the value set by
the broker. This makes it confusing to understand which value being is used.
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