title: Web Api advise on redirecting calls, load balancing
body: <p>I have my <code>Web Api application</code> distributed on three servers using <code>Load Balancer</code> with <code>Round Robin</code> rule. Every server can proceed <code>only one request</code> for specified RestApi endpoint <a href="http://MyServer/api/LongRunningProcees" rel="nofollow">http://MyServer/api/LongRunningProcees</a>
  If second request is posted to the same Rest API endpoint when first one is not finished a server return 503 Service unavailable. </p>
  
  <p>I am new to load balancing and I don't find any solution how to redirect the request to another server until it will be accepted. Is this Load Balancer responsibility?</p>