Implementing a server side push for a small number of clients

Posted by Helper Method on Stack Overflow See other posts from Stack Overflow or by Helper Method
Published on 2011-01-10T00:49:09Z Indexed on 2011/01/10 0:53 UTC
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Filed under:

JavaScript

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client-side

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server-side

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server-push

For an web application I am working on I have the following requirements:

Clients need to be able to log in via a web brower.
After logging in, they will be able to
- change configurations (normal request/response)
- will be able to receive alarms sent by the server (a server side push)

Now, the question is how to implement the alarms. I first thought of using some long polling approach (Comet), but as the amount of clients will definitely belimited to 5-10, I'm now thinking to go with a simpler approach.

What are the options I have? Would it be okay to just let the clients poll the server?

Important aspects are:

Alarms should be delivered in (nearly) real-time.
Alarms must not get lost (a lost alarm could cause harm to real people).

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