[sevenf0ur]

Sounds like a poorly written AMQP client of which there are many. Either you go bare bones and write wrappers to implement basic functionality or find a fully fleshed out opinionated client. If you can get away with using PostgreSQL go for it.

[kitd]

As a matter of interest, what are good, reliable, actively developed AMQP clients? Asking because I've had problems with several.

[datadeft]

So far I have not had any issues with the Elixir one.

https://github.com/pma/amqp