shibd opened a new issue, #17139: URL: https://github.com/apache/pulsar/issues/17139
### Search before asking - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Motivation Current C++ and Python clients do not support the dead letter topics. Dead letter topic serves message redelivery, which is triggered by [acknowledgement timeout](https://pulsar.apache.org/docs/concepts-messaging/#acknowledgement-timeout) or [negative acknowledgement](https://pulsar.apache.org/docs/concepts-messaging/#negative-acknowledgement) or [retry letter topic](https://pulsar.apache.org/docs/concepts-messaging/#retry-letter-topic) . C++ and Python also do not support `acknowledgement-timeout` and `retry-letter-topic`. ### Solution You can refer to the implementation of java and this [PIP](https://github.com/apache/pulsar/wiki/PIP-22%3A-Pulsar-Dead-Letter-Topic). ### Alternatives Can be first implemented `negative-acknowledgement` trigger send to dead letter topic, and then implement `acknowledgement-timeout` and `retry-letter-topic`. ### Anything else? Reference Java implement PR: - https://github.com/apache/pulsar/pull/2508 - https://github.com/apache/pulsar/pull/6449 ### Are you willing to submit a PR? - [ ] 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]
