[KAFKA-13718] kafka-topics describe topic with default config will show `segment.bytes` overridden config

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0, 2.8.1, 3.0.0
• Fix Version/s: 3.3.0
• Component/s: tools
• Labels: newbie newbie++
• Assignee: Richard Joerger
• Reporter: Luke Chen
• Created: 08/Mar/22 07:30
• Updated: 03/Jun/22 13:43
• Resolved: 03/Jun/22 03:00

Description

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

Issue Links

• Blocked: KAFKA-13875 update docs to include topoicId for kafka-topics.sh --describe output
• links to: GitHub Pull Request #12246