What does it mean when Erlang says that there are too many processes?
The short answer is that you have too many Erlang processes (i.e. lightweight processes, not Unix processes). The default system limit is 32767, so if you need more, start the Erlang VM with the +P flag to set the maximum number of allowed processes. RabbitMQ uses Erlang processes for each channel, for each connection, and for each queue within the broker. If you are running into the system limit, you might be running a large system, or you might be creating unnecessary resources.
