As with the Python implementation of carbon-relay, metrics can be pushed to carbon-relay-ng via TCP
(plain text or pickle) or by using an AMQP broker such as RabbitMQ. To send metrics via AMQP, create
a topic exchange (named "metrics" in the example carbon-relay-ng.ini) and publish messages to it in
the usual metric format: <metric path> <metric value> <metric timestamp>. An exclusive, ephemeral
queue will automatically be created and bound to the exchange, which carbon-relay-ng will consume from.