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POMy ISP is forcing me to buffer tcp data before sending it
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copied!<p>I have a Java TCP game server, I use <code>java.net.ServerSocket</code> and everything runs just fine, but recently my ISP did a some kind of an upgrade, where, if you send two packets very fast for the same TCP connexion, they close it by force.</p> <p>This is why a lot of my players are disconnected randomly when there's a lot of traffic in game (when there is a lot of chance that the server will send 2 packets at same time for the same person)</p> <p>Here is an example of what I mean: If I do something like this, my ISP will close the connexion for no reason to both client and server side:</p> <pre><code>tcpOut.print("Hello."); tcpOut.flush(); tcpOut.print("How are you?"); tcpOut.flush(); </code></pre> <p>But it will work just fine if i do something like this:</p> <pre><code>tcpOut.print("Hello."); tcpOut.flush(); Thread.sleep(200); tcpOut.print("How are you?"); tcpOut.flush(); </code></pre> <p>Or this:</p> <pre><code>tcpOut.print("Hello."); tcpOut.print("How are you?"); tcpOut.flush(); </code></pre> <p>This only started a couple of weeks ago when they (the ISP) did some changes to the service and the network. I noticed using Wireshark that you have to have at least ~150ms time between two packets for same TCP connexion or else it will close.</p> <p>1)Do you guys know what is this called ? does is it even have a name ? Is it legal ?</p> <p>Now I have to re-write my game server knowing that I use a method called: <code>send(PrintWriter out, String packetData);</code></p> <p>2)Is there any easy solution to ask java to buffer the data before it sends it to clients ? Or wait 150ms before each sending without having to rewrite the whole thing ? I did some googling but I can't find anything that deals with this problem. Any tips or information to help about this would be really appreciated, btw speed optimisation is very crucial. Thank you.</p>

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