How is rabbitmq server configured for hot updates?

[ponponon]

The rabbitmq server is running on debian10 and was installed via the apt command.

After watching this tutorial rabbitmq docker default configuration change, I want to change the vm_memory_high_watermark. relative configuration in rabbitmq.conf, but since this rabbitmq server is being used in an online production environment, I don't want to restart without downtime.

I wanted to do a hot update with no downtime.

So I googled How to configure rabbitmq server for hot updates, and didn't find anything useful up to then

Is it because rabbitmq server doesn't support hot updates?

[michaelklishin]

rabbitmq.conf configuration changes require a node restart but you can use

rabbitmqctl set_vm_memory_high_watermark

as a short term solution in this specific case.