truong-hua opened a new issue, #16716: URL: https://github.com/apache/pulsar/issues/16716
### What issue do you find in Pulsar docs? The doc does not clearly describe the behavior of a sink when the auto-ack is disabled and whether the auto-ack = true is always reliable for any cases and should be the only option or not. In reality, we are facing some missed data in sink while our cluster is changing. We are only using rabbitmq as sink destination so we are now would like to understand more about the auto-ack methodology of pulsar to better understand the situation and somehow resolve our problem. ### What is your suggestion? We would like to know more what should we add to a sink if auto-ack is set to false. Secondly, we would like to know if auto-ack = true, when a sink ack a message and when it nack a message, and whether it's 100% reliable or not? Let's say there is no any problem with the sink destination service (in our case it's RabbitMQ). ### Do you have any references? Nope ### Would you like to fix this issue? Nope ### Note - [X] I have researched my question. -- 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]
