title: jetty continuation - suspended requests - resources
body: <p>In my project I need to create a proxy server which will be able to shape traffic. The main issue is to have different queues with different priorities which will provide access to further servers.</p>
  
  <p>My idea is to use Jetty with its asynchronous feature - Continuation. In Continuation there is option of suspending the request and releasing thread. Then my request can be queued.</p>
  
  <p>My main concerns are around resources. What happens with requests in Jetty which are 'suspended'? Do they still have any threads attached? 
  In my case quite many requests might be queued and method 'thread per request' from Tomcat is not good solution for me...</p>