Coldfusion: session test on multiple servers

session_test.cfm

<cfscript>
writeOutput("You are on server: " & cgi.local_host & "<br/>");
if( structKeyExists(url, "action") ) {
    if ( url.action eq "new" ) {
        createSessionTest();
    }
} else {
    if( not structKeyExists(session, "test") ){
        writeOutput("Sorry, but there is no session test");
    }
}

function createSessionTest(){
    session["test"]           = structNew();
    session.test["timestamp"] = dateDiff( 'n', createDate(1970,1,1), now() );
    session.test["server"]    = cgi.local_host;
    writeOutput("session test created...");
}

writeDump(session);
</cfscript>