Aias00 opened a new issue, #6851: URL: https://github.com/apache/shenyu/issues/6851
## Description Subscriptions containing `+` (single-level) or `#` (multi-level) are stored under the literal wildcard string and never matched against published topic names; the matcher is an explicit TODO. `Publish.send` looks up `SubscribeRepository.get(topic)` with the literal published topic (plain `ConcurrentHashMap.getOrDefault` exact-key lookup). ## Location - `shenyu-protocol/shenyu-protocol-mqtt/src/main/java/org/apache/shenyu/protocol/mqtt/Subscribe.java:63` (`// todo Regular match`) - `shenyu-protocol/shenyu-protocol-mqtt/src/main/java/org/apache/shenyu/protocol/mqtt/repositories/SubscribeRepository.java:90-92` ## Impact Wildcard subscriptions never receive any message — a core MQTT feature is silently broken. ## Suggested fix Implement topic-filter matching per MQTT-4.7 (`+` single level, `#` multi-level at end) and match published topics against all stored filters on each PUBLISH. -- 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]
