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MINOR: Add retention prop to share group state topic. (#20013)
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*

https://cwiki.apache.org/confluence/display/KAFKA/KIP-932%3A+Queues+for+Kafka
states the `retention.ms` property for the `__share_group_state` to be
`-1`.
* This PR makes it explicit when defining the values of those configs.
* Existing test has been updated.

```
$ bin/kafka-topics.sh --bootstrap-server localhost:9092 --describe
--topic __share_group_state

Topic: __share_group_state      TopicId: XCwzZjEGSjm5lUc_BeCrqA
PartitionCount: 50      ReplicationFactor: 1
Configs:
compression.type=producer,
min.insync.replicas=1,
cleanup.policy=delete,
segment.bytes=104857600,
retention.ms=-1
...
```

Reviewers: Andrew Schofield <aschofield@confluent.io>
This commit is contained in:
Sushant Mahajan 2025-06-23 02:32:35 +05:30 committed by GitHub
parent 3404f65cdb
commit 56a6ba2d2e
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2 changed files with 7 additions and 3 deletions
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4
share-coordinator/src/main/java/org/apache/kafka/coordinator/share/ShareCoordinatorService.java
View File

@ -253,10 +253,12 @@ public class ShareCoordinatorService implements ShareCoordinator {
@Override
public Properties shareGroupStateTopicConfigs() {
Properties properties = new Properties();
properties.put(TopicConfig.CLEANUP_POLICY_CONFIG, TopicConfig.CLEANUP_POLICY_DELETE); // as defined in KIP-932
// As defined in KIP-932.
properties.put(TopicConfig.CLEANUP_POLICY_CONFIG, TopicConfig.CLEANUP_POLICY_DELETE);
properties.put(TopicConfig.COMPRESSION_TYPE_CONFIG, BrokerCompressionType.PRODUCER.name);
properties.put(TopicConfig.SEGMENT_BYTES_CONFIG, config.shareCoordinatorStateTopicSegmentBytes());
properties.put(TopicConfig.MIN_IN_SYNC_REPLICAS_CONFIG, config.shareCoordinatorStateTopicMinIsr());
properties.put(TopicConfig.RETENTION_MS_CONFIG, -1);
return properties;
}

6
share-coordinator/src/test/java/org/apache/kafka/coordinator/share/ShareCoordinatorServiceTest.java
View File

@ -2158,10 +2158,12 @@ class ShareCoordinatorServiceTest {
TopicConfig.CLEANUP_POLICY_CONFIG,
TopicConfig.COMPRESSION_TYPE_CONFIG,
TopicConfig.SEGMENT_BYTES_CONFIG,
TopicConfig.MIN_IN_SYNC_REPLICAS_CONFIG
TopicConfig.MIN_IN_SYNC_REPLICAS_CONFIG,
TopicConfig.RETENTION_MS_CONFIG
);
Properties actual = service.shareGroupStateTopicConfigs();
propNames.forEach(actual::contains);
propNames.forEach(actual::remove);
assertTrue(actual.isEmpty());
service.shutdown();
}