Lightstreamer
FAQ
General Questions
What is Lightstreamer in a nutshell?
What should I use Lightstreamer for?
Can Lightstreamer stream audio and video too?
When, where and how did Lightstreamer originate?
What do the Lightstreamer edition names mean?
What is Push Technology?
What’s the relation between Lightstreamer and Web 2.0, AJAX, Comet?
What's the difference between Lightstreamer and Jabber/XMPP?
What is the difference between Lightstreamer and the mobile push technology standard WAP2.0?
What’s the relation between Lightstreamer and TIBCO® Rendezvous® / TIBCO® Enterprise Message Service™?
How scalable is Lightstreamer Server?
How many concurrent users can one Lightstreamer Server instance support?
Licensing & Sales
Can I use Lightstreamer software for FREE?
Can you explain the types of licenses (EVAL, DEV, DEMO, PROD) available for Allegro/Presto/Vivace editions?
How can I know the MAC address of my server?
The Server does not recognize my MAC address, why?
Deployment & Administration
How do I extract the contents of the zip or tar.gz archives?
To integrate Lightstreamer in our system, do we need to change the HW or SW of the current Web server architecture?
Can I deploy the Web Server and Lightstreamer Server on the same machine?
How can I deploy my Web application, that uses Lightstreamer, on an external Web server?
Does LS Server support JSP or other dynamic page creation technologies? Is it possible to deploy a JSP page in LS Server?
We have deployed a J2EE application. What would be the best way to integrate it with LS Server?
I have the requirement to put the server behind a single sign-on system. [...]
What is the idea behind the clustering of Lightstreamer? How it is different from normal web server clustering?
Where should we deploy our Adapters and our Web pages?
How can Lightstreamer integrate with monitoring tools?
Describe Lightstreamer's ability to report usage information.
What information is Lighstreamer capable of logging?
Please describe available client metrics and how they might be reported back to the server.
Why are we seeing OutOfMemory exceptions in our log?
How to understand the various error and warning messages o the server side?
Server-Side Technology
Does Lightstreamer offer guaranteed delivery?
Under what conditions is polling better than streaming?
Could you elaborate on what is specifically handled within the Metadata Adapter? Would an example convey this?
I'm looking for a good explanation of the purpose of snapshot [...]
Should the Adapters be aware of the subscription mode for an item?
The Data Adapter API specifications say I can't reuse HashMap objects. Is it just a matter of correctness?
How should I implement the subscribe method of my Data Adapter for high performance?
How should I implement the notifyUser method of my Metadata Adapter for high performance?
What is Pre-filtering?
What's the meaning of the max_buffer_size configuration parameter?
Client-Side Technology
How do I add “pushed” data updates to a Web page and what skills are required to create and maintain the content?
What are the advantages of only pushing data via HTML & JavaScript without the need for Java applets or ActiveX?
Can we also integrate Lightstreamer to push real-time data to any client application and not just a browser?
What’s the relation between Lightstreamer and AJAX? What is Comet?
What’s the size of Lightstreamer’s JavaScript libraries?
Is the Lightstreamer javascript code namespaced? We want to avoid any potential collisions with other javascript packages.
How to integrate a third-party HTML visual component (e.g. an AJAX widget)?
What is the difference between the two SDKs for Flash/Flex?
Is it possible to maintain two Lightstreamer connections from the same browser window? [...]
How do I access the LightstreamerEngine object from a Push-page?
In the callback function, we needed to know the name of the field that was updated [...]
If we have 2 table elements on the same page with LS div tags both referring to the same subscribed item [...]
Why do I randomly get the "ER bind Unable to find the Engine" alert?
What kinds of alerts are displayed by the Web Client library?
Can I use Firebug with Lightstreamer?
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