{0 Scalability of Eliom apps}

Here are a few hints on how to write scalable Eliom applications,
running on multiple cores or servers.

- Use an external load balancer that will route all the requests of
a same user agent to the same server (using cookies for example).
- Be careful with all global data (references,
dynamically created services ...).
- Use a distributed backend for Ocsipersist (postgresql for example), and disable persistent GC for all but one (by setting [<persistentsessiongcfrequency value="infinity" />]).
- If you are using
{!Eliom_notif} or
{!Os_notif},
broadcast your notifications to all the servers.
