Not really a lightthpd or varnish issue. DNS is really you answer. Also, if you get hit hard in on location, sending it somewhere else and you no longer have latency advantage/
On Sep 15, 2011, at 8:32 AM, Thomas Prommer wrote: > Varnish Community, > > We are managing a cluster farm of 6 nodes that are geographically distributed > across Europe (Amsterdam, London, Lisbon, Frankfurt, Zurich, Milan) > delivering our internationalized application for the appropriate CCTLD for > such nodes. All nodes have the same server image and application deployed. > The server distribution is critical to ensure low latency in local markets as > well as for SEO reasons. > > The application is a simple LAMP application (no centralized data) that is > using Varnish and Lighttpd Fast CGI for optimal scaling. However, we still > run into scaling issues were essentially one node gets hit hard with local > traffic while all the other severs are pretty idle. > > Our question is if there is a common recommendation of load balancing a > server cluster where the servers are geographically distributed and also if > varnish or the lighttpd fastcgi server would be more appropriate to carry out > the load balancing? > > We know that both systems allow for load balancing but we are concerned that > simply load balancing the IPs of geographically servers wouldn't perform too > well because an additional round trip to a remote server location would be > introduced. > > In a nutshell, our questions are: > > Are there any good strategies around load balancing geographical distributed > servers? > What are the evaluation points for deciding if either Varnish or Lighttpd > FastCGI would be more appropriate to own the load balancing responsibility? > > Thanks /Thomas > > _______________________________________________ > varnish-dev mailing list > [email protected] > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-dev
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