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We have a problem with our Forgotten Hope 2 (BF2 modification) server. Sometimes, when player joins the server, the whole thing hangs up momentarily (~0.5‒3.0 sec) with every player on-line at the time being shown “There is a problem with your connection” message.

There seems to be no rhyme nor reason for that lag. It does not seem to be related to joining player’s ping, or any players in particular (same players could cause this one day, and not another). We’ve actually noticed that the same player could cause the server lag on some attempts to connect, but not on the others, all within minutes of each attempt. It does not seem to increase in frequency in relation with amount of players on the server (it can happen as often when there are five players, as when there are thirty).

In order to solve the problem there was much fiddling done with the server, to no avail. We had tried to remove other servers from other cores (I know they at least ran a Minecraft server on the same box). We used to have a script running that would automatically load the proper map size based on the number of players currently on-line. We thought it was the culprit, but disabling it didn’t help (besides, it works on other popular servers). Several PunkBuster checks were removed without apparent effect on the issue.

This looks like an issue with particular combination of hardware and software, because in all my years of playing vanilla BF2 and its mods (FH2, PR, Pirates etc.) I had never encountered such problem, even on 128-player servers at capacity. But I would like to see if the same thing happened on other servers as well to see if there is a common source of this lag, or whether it would require deep digging.

The basic technical specifications for the server are: AMD Phenom II X6 1090T (3.2 GHz), 16GB RAM, Linux. All those are way above the recommended specs for BF2 64-player Linux server.

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Chances are quite good it has something to do with the mod itself, I suspect. Can you try a completely different server and see what happens? –  Frank Jun 24 '13 at 14:21
    
Please, comment for clarification about the relevant hardware and software specs (all I know right now, it is a 2-core Linux machine), and BF2 server variables. Or about what to look for in server logs. –  theUg Jun 24 '13 at 14:21
    
@fbueckert, like I said, I have not seen it happen on other BF2 servers, including those with the same mod, including two different servers with 100+ players from all over the world on them. –  theUg Jun 24 '13 at 14:23
    
If you're sure you're using the same version of the mod as other servers, then there's something funky with the server itself. You sure the hardware's all stable? –  Frank Jun 24 '13 at 14:37
    
@fbueckert, my suspicions are that either hardware is too weak (I am still waiting on HW specs, it’s just that the person who actually have physical access to the box is extremely busy and hard to reach), there are some SW processes that interfere (this is where the server logs could come in handy, but we need to know what and where to look for), or, possibly, there is some connection bottleneck (although, I would think that it would only affect some users, but it looks like the actual server hang up). –  theUg Jun 24 '13 at 14:54

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