f1amingo opened a new pull request, #11467: URL: https://github.com/apache/rocketmq/pull/11467
### Which Issue(s) This PR Fixes - Fixes #11466 ### Brief Description Adds `subscriptionGroupMaxLength` to `BrokerConfig`, retaining the existing default of 120 and capping the effective limit at 255. Broker-side single, batch, and automatic group creation use the configured value, while client and gRPC validation remain unchanged. Callers that raise the limit must keep generated retry topics within 255 characters. Groups over 122 characters cannot use `%DLQ%<group>` because broker writes reject topics over 127 bytes. ### How Did You Test This Change? Ran `TopicValidatorTest`, `AdminBrokerProcessorTest`, and `SubscriptionGroupManagerTest` with JDK 8; all 121 tests passed. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
