Unable to find Engine

[Peterhuang]

Hi Mone,

Could you help me to confirm this quesiton? Thanks!

If I config Demo on server which has public IP address but no domain name,
how should I set domain and LSHost?
One important point: Someone will visit this Demo through internet.

I try to write web page like below, but it throw exception like "ER Bind Unable to find Engine..."

<script>
var lsPage = new PushPage();
lsPage.context.setDomain("55.55.55.55");
lsPage.onEngineCreation = function(engine) {
engine.connection.setLSHost("55.55.55.55");
engine.connection.setLSPort(8080);
engine.connection.setAdapterName("DEMO");
engine.changeStatus("STREAMING");
}
lsPage.bind();
</script>

Or

<script>
var lsPage = new PushPage();
lsPage.context.setDomain(null);
lsPage.onEngineCreation = function(engine) {
engine.connection.setLSHost("55.55.55.55");
engine.connection.setLSPort(8080);
engine.connection.setAdapterName("DEMO");
engine.changeStatus("STREAMING");
}
lsPage.bind();
</script>

[Mone]

Hi,

NOTE that this is advised against, but if it's only for some tests it is ok:

if the pages are on Lightstreamer internal web server just use null (for everything...):
var lsPage = new PushPage();<br /> lsPage.context.setDomain(null);<br /> lsPage.onEngineCreation = function(engine) {<br /> engine.connection.setLSHost(null);<br /> engine.connection.setLSPort(null);<br /> engine.connection.setAdapterName("DEMO");<br /> engine.changeStatus("STREAMING");<br /> }<br /> lsPage.bind();<br />
and access you application via IP (works at least on FX and IE, not sure on other browsers)

in the other case you can't access the page via IP but you need a hostname (2 if LS and web server are on different machines)

HTH

[Peterhuang]

Hi Mone,

Thanks for your reply.

My environment is that the demo is running in external web server on same machine.

Under this environment, I can't use IP address directly for accessing from Internet, right?

[Mone]

Sorry, you can't.

If you can access the client machine's hosts file you can map there your IP to something like www.mysite.com.

Moreover note that use two server (web & LS) on the same machine is not compatible with Opera browser: http://www.lightstreamer.com/vb/showthread.php?t=28

[Peterhuang]

Yes, you're right.

Thanks for your answer.

[bandanna2k]

Please help! I have been following this and a few other threads concerning the binding of domain and host. And have been unsuccessful getting a test environment up and running.

I am successful when accessing Lightstreamer directly on port 8080, but my setup fails when I try with webpages on my webserver.

I have Windows XP
I have Lightstreamer running on port 8080.
I have IE as my client.
I have Netbeans with Tomcat as my webserver.

Lightstreamer config I have.

<http_server name="laptop">

My HOSTS file contains

192.168.1.88        mycompany.net

My computer is called 'laptop' with domain suffix 'mycompany.net'

My HTML code contains

    page.context.setDomain( "mycompany.net" ); // (set the domain when deploying on web server)

    page.onEngineCreation = function( engine )
	{
        engine.context.setDebugAlertsOnClientError(true); // (set false in production)
        engine.connection.setLSHost( "laptop.mycompany.net" ); // (set the hostname when deploying on web server)
        engine.connection.setLSPort( 8080 ); // (set the port when deploying on web server)

I look forward to someone pointing out my obvious mistake!
DN

[Mone]

hi,

it seems correct, how do you access tomcat (ie which address do you write in the address bar to access your web page)?

Which browser/s are you testing?