Question

Vbulletin is crashing Mysql causing out of memory errors.

Posted October 27, 2014 2.4k views

Hey guys!

So i volunteered to take over the hosting of an old art forum that i moderate and i decided to just put it up on my VPS as im already using it for a few things.

I didn’t expect it to really take up much in the way of resources, but I’m having some major troubles.

It keeps crashing mysql with out of memory warnings, and sometimes it will just hang at 100% cpu.

I have a 2gb ram server and a 1 gb swap file, on ubuntu 14.4

http://polykarbonbbs.com/index.php

What really confuses me is that it seems to be spikes at random that cause the crash, so it could take 2 days or it could take half an hour. Is there any settings i would need to help fix this or do i just not have a powerful enough droplet?

I would appreciate the help if you have any insight!

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muzzoid
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2 answers
JonsJava October 27, 2014

Just a thought, but did you see the CVE regarding vBulletin?

CVE-2014-2021

Someone could be attacking you to exploit the vulnerability..

Not sure if that’s the case, but it would explain the randomness of the crashes.

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  • muzzoid October 27, 2014

    Hmm, our version isn’t listed, but i guess it could be possible. But it seems unlikely? I’ll have a look at it closer in the morning,

    Thanks!

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muzzoid October 28, 2014

If it helps at all these is the graphs at around the time it went down last

http://i.imgur.com/Js7hokB.jpg

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