In the Server Administration you could define how many Threads (connections) are allowed by configuring the properties '`WebServer.*.MaxThread`', see [Chapter 'System Properties' in the Server Guide][1] how to configure.
If you use PrimeFaces Push ensure that for Web Socket connections not IO blocked connections/threads are used. Otherwise each connection use its own Thread. See PrimeFaces Push configuration in the question `http://answers.xpertivy.ch/questions/10/can-i-use-primepush-in-xpert-ivy`, [Can I use PrimePush in Xpert.ivy][2], especially the init-param 'org.atmosphere.useWebSocketAndServlet3' '`org.atmosphere.useWebSocketAndServlet3`' is required.
[1]: http://xpertivy.ch/releases/Xpert.ivy/5.0.latest/documents/ServerGuideHtml/ivy.server.administration.systemproperties.htmlhttp://xpertivy.ch/releases/Xpert.ivy/5.0.latest/documents/ServerGuideHtml/ivy.server.administration.systemproperties.html
[2]: http://answers.xpertivy.ch/questions/10/can-i-use-primepush-in-xpert-ivy
