Session distribution is a feature that enables the service provider to distribute the load of API traffic across multiple web servers or data centers. You can configure session distribution setting when registering as a provider in the Service Profile e-form under Web Server Setup.

Once session distribution is enabled, then Swift will check every hour the site weight factor set on the web servers by the service provider and distribute API traffic accordingly. You can add up to four web servers.

To set the site weight factor, make sure to include weight in the health check page either hidden or in the HTML code. The following syntax must be followed: <Keyword>< ><weight>. The keyword is the same as the keyword used for performing the web server health check. The weight must be expressed in two digits.

• If no weight is mentioned, then the load is equally balanced amongst the registered web servers.
• If the site weight factor is set to 00, then no new sessions will be routed to that web server, but Swift will continue to monitor reachability of that web server in case the weight setting changes.