title: How to increase the RabbitMQ federation rate?
body: <p>It seems that I am hitting a limitation in RMQ regarding the federation. I tried different setups and configurations but I can't receive more than 4-7k messages per seconds (depend on if I configure the federation as <code>on-publish</code> or <code>no-ack</code>).</p>
  
  <p>The things that I already tried:</p>
  
  <ol>
  <li>federation with different configs (with and without prefetch, ack, etc)</li>
  <li>multiple exchanges in RMQ1 and create the same number of federations in RMQ2 and each federation point to one different exchange in RMQ1</li>
  <li>federation to queues</li>
  <li>Using the Consistent Hash Exchange (<a href="https://github.com/rabbitmq/rabbitmq-consistent-hash-exchange" rel="nofollow noreferrer">https://github.com/rabbitmq/rabbitmq-consistent-hash-exchange</a>)</li>
  <li>shovel (same message rate as federation)</li>
  </ol>
  
  <p>I want to know how I can transfer more messages from one RMQ to another.</p>