lhotari opened a new issue, #25192: URL: https://github.com/apache/pulsar/issues/25192
### Search before reporting - [x] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Read release policy - [x] I understand that [unsupported versions](https://pulsar.apache.org/contribute/release-policy/#supported-versions) don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker. ### User environment All released versions ### Issue Description The topic list watcher is using org.apache.pulsar.broker.namespace.NamespaceService#getListOfPersistentTopics for listing topics and in addition, org.apache.pulsar.broker.resources.TopicResources#handleNotification doesn't filter out system topics. When a new system topic is added to the namespace, and the pattern is matching all topics, it would get passed to the client as a new topic to be subscribed to. The expectation is that pattern (regex) topic consumer doesn't subscribe to system topics. New system topics can be created by Pulsar's transaction support. The transaction support uses system topics that end with certain suffixes, for example with the `__transaction_pending_ack` suffix. ### Error messages ```text ``` ### Reproducing the issue n/a ### Additional information _No response_ ### Are you willing to submit a PR? - [x] I'm willing to submit a PR! -- 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]
