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Possible swap problem? [message #46407] Thu, 17 May 2012 21:52 Go to next message
mperkel is currently offline  mperkel
Messages: 253
Registered: December 2006
Senior Member
Not sure if this is a coincidence or related but I'm noticing several servers wanting to freeze shortly after memory fills and it goes to swap. It's been happening for a few months not randomly.

I started noticing it just after I converted most servers to SSD. I have a swap partition on the drives. In theory this shouldn't make a difference. So might be a coincidence. But - what would cause servers to lock up early when starting to use swap? I show a lot of swap space and the load levels aren't that high. And it doesn't freeze instantly - but not long after swap starts.

A lot of my servers are running 32 gigs of ram so it rarely hits the swap. Just wondering if I'm missing something.


Re: Possible swap problem? [message #46450 is a reply to message #46407] Tue, 22 May 2012 10:44 Go to previous messageGo to next message
kir is currently offline  kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia
Senior Member

Which kernel? Are you using vswap configs or not?

Kir Kolyshkin
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Re: Possible swap problem? [message #46464 is a reply to message #46450] Tue, 22 May 2012 14:01 Go to previous message
mperkel is currently offline  mperkel
Messages: 253
Registered: December 2006
Senior Member
I was using the kernel before the latest one. I haven't had a problem on the latest but I also have likely avoided anything filling up memory enough to hit the swap.

Not using vswap.


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