Can NATS keep messages in memory if no consumer is currently enabled (producer-consumers pattern)?

Question

Python

I want to use NATS to distribute tasks among multiple worker processes. Everything works as expected if I have at least one worker "online", but if there are no worker processes, the messages are just thrown when I enable one worker, I have no messages (which were created when it was not enabled).

I know how to do it with RabbitMQ, but can it be done with NATS?

I work in Python, the producer process is aiohttp server, the worker processes are also in Python and perform heavy computational tasks.

Answer 1

At the moment the official Python connector does not support NATS/Jetstream issue-209

Answer 2

https://docs.nats.io/jetstream/jetstream