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https://issues.apache.org/jira/browse/KAFKA-13718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17544086#comment-17544086
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Jason Gustafson commented on KAFKA-13718:
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[~showuon] I think the reason `segment.bytes` shows up is that we have it
defined in the default `server.properties`:
[https://github.com/apache/kafka/blob/trunk/config/server.properties#L112.]
Technically, the static configuration is overriding the default value (even
though the overridden value is the same as the default). If you take it out of
`server.properties`, then it is no longer displayed. I guess I'd call this
correct, if perhaps slightly surprising, behavior. Perhaps we could "fix" it by
commenting out the default in `server.properties`?
> kafka-topics describe topic with default config will show `segment.bytes`
> overridden config
> --------------------------------------------------------------------------------------------
>
> Key: KAFKA-13718
> URL: https://issues.apache.org/jira/browse/KAFKA-13718
> Project: Kafka
> Issue Type: Bug
> Components: tools
> Affects Versions: 3.1.0, 2.8.1, 3.0.0
> Reporter: Luke Chen
> Assignee: Richard Joerger
> Priority: Major
> Labels: newbie, newbie++
>
> Following the quickstart guide[1], when describing the topic just created
> with default config, I found there's a overridden config shown:
> _> bin/kafka-topics.sh --describe --topic quickstart-events
> --bootstrap-server localhost:9092_
> _Topic: quickstart-events TopicId: 06zRrzDCRceR9zWAf_BUWQ
> PartitionCount: 1 ReplicationFactor: 1 *Configs:
> segment.bytes=1073741824*_
> _Topic: quickstart-events Partition: 0 Leader: 0 Replicas: 0
> Isr: 0_
>
> This config result should be empty as in Kafka quick start page. Although the
> config value is what we expected (default 1GB value), this info display still
> confuse users.
>
> Note: I checked the 2.8.1 build, this issue also happened.
>
> [1]: [https://kafka.apache.org/quickstart]
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