Good day to all.
I need to do this:
When user X press a button user Y sees a photo. Before that user Y sees nothing.
I did this like this: I created a database on a mysql server and created a table with photos and flags. When user X presses the button I send an ajax request and change the flag to the corresponding photo. User Y also sends ajax request every 1 sec to see if anything has changed.
Sounds ok, looks ok, works... it does but to so ok. When 100000 users send 1 ajax request every 1 second the server crashes. First mysql server then apache.
So... my question is is there anyway to do this without so many ajax requests? Something like send the page with a certain "thing" that tells the browser to keep the same socket and send later the image? Something like a stream but instead of images to be html pages/images/whatever.
I know java applet would be a solution but I would need a php(for server side)+js(for client side) solution.
And yes I know that I'll probably get an "you can't" answer but it deserves a try.
What about WebSockets ?
edit. HTTP keep-alive might help.
Because HTTP is stateless, you need to create a permanent or long-lasting socket connection between clients and server.
This is a chat application, written in PHP, AJAX and Ruby backend.
Web Chat application main page , more specifically the part about the socket server
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