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Geunine Load Problem


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Just visit www.avsim.com and look at our ever popular friend at the bottom "server load." :( We went back to Apache last week, switching away from NGiNX. Almost as soon as I did that, the board started to overload.

I browsed some forums on here, found some areas where I THOUGHT engineers were helping cleints on the server end. Guess I was wrong; as ever ticket I open for support with IPS I am told "we don't do servers, try a shared environment."

First, AVSIM owns our servers. We've got plenty of bandwidth and the servers have quad-Xeons with maxxed out memory at 32GB running CentOS.

I am desperate for assistance. I can do pretty much anything I am told, but I don't know where to begin with this.

As a reference, we average 900+ users online at any given time, any time of day ,as our community is global. I am even willing to setup load-balancing with our secondary server, if someone is willing to assist? (if that is even possible?) I also read something about varnish MIGHT help....again, drawing at straws here, as I know with a load over 16+ at some point this is all going to crash down on me. :(

Thanks in Advance.
John Binner, AVSIM
Technology Manager

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I'm surprised to hear you're having such problems. We host sites with more than that online on servers far less powerful than the one you mentioned here.

You may wish to check things like your my.cnf configuration to be sure it's tuned properly. Also it looks like you have a LOT of modifications and forums. Much like your computer the more you ask IP.Board to do the slower it may run.

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Hi John,



One thing you can try immediately is to enable 'Performance Mode' in your AdminCP, it is in the left menu.



Stuart




Sorry cant do that, this isn't a spike in traffic, this is normal load. If I disable all of that, we lose a lot of our functions.
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Also, I should add that we are now using ip.content as well as ip.board for our entire hosting solution. We are also looking into converting our entries 186,000+ file library to make use of "Downloads" within the forums, so load is going to get even heavier. I am wondering if Apache is the issue? What other tweaks can I do there as well?

Thanks in advance,
John Binner, AVSIM

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All, I just wanted to report back....after reading several other threads on here, I installed APC cache....and watched my server load go from 27+ down to <4 on a regular basis. :smile:

I am a happy happy camper now. :smile: So, I'd recommend for larger sites, CACHE CACHE CACHE and cache some more! :smile: It did WONDERS for us!

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I imagine there's still room for improvement. I recommend considering posting in this forum, which is better suited for this sort of topic: http://community.invisionpower.com/forum/406-server-management-resources-optimization/

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