title: 250k connections for comet with node.js
body: <p>How I can handle 250k open connections to a comet server on node.js (client side we use socket.io)? </p>
  
  <p>Would the use of nginx as proxy/loadbalancer be the right solution? Or will HA-Proxy be the better way? Has anyone real world experience with 100k+ connections and can share his setup?
  Like this:</p>
  
  <pre><code>         nginx (as proxy / load balancing server)
          /               |          \
         /                |           \
        /                 |            \
       /                  |             \
  node server #1  node server #2  node server #3
  4 instances     4 instances     4 instances
  </code></pre>