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Re: vswap question - physpages/oomguarpages [message #46883 is a reply to message #46881]

Thu, 21 June 2012 05:37

Kirill Korotaev
Messages: 137
Registered: January 2006

Senior Member

I guess it means oom, i.e. out of memory killer had to kill someone since vswap+ram was not enough...

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On 21.06.2012, at 8:58, "Rene C." <openvz@dokbua.com> wrote:

>
> I just noticed a couple of containers on one of our vswap enabled servers have non-zero failcnt's (user_beancounters)
>
> uid resource held maxheld barrier limit failcnt
> 1413:
> physpages 84873 131166 0 131072 61
> oomguarpages 94628 377952 0 9223372036854775807 4
> 1409:
> physpages 52986 262155 0 262144 1378
> oomguarpages 57155 376725 0 9223372036854775807 18
>
> (I've deleted lines with zero failcnt for clarity)
>
> It was my understanding that if a vswap enabled container try to use more physpages than available it would start "vswapping" - is that what happens here? Otherwise how can physpages fail? Is this normal swapping behavior or a problem?
>
> A second thing is, when I tried to raise the physpages value with vzctl it again wrote the old "block" values into the vz conf files, i.e.
>
> i.e. before running vzctl the values are like this:
> < PHYSPAGES="0:512M"
> < SWAPPAGES="0:1024M"
>
> after running vzctl --set 1413 --save --ram 512M --swap 1G the values are like this:
> > PHYSPAGES="0:131072"
> > SWAPPAGES="0:262144"
>
> I already opened a bug report on this and I though it had been fixed already. Is there some undocumented flag that needs to be provided to vzctl to get it to write out the values in the easy human readable format?
>
> Regards,
> Rene
>
> <ATT00001.c>

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[Message index]

		vswap question - physpages/oomguarpages By: Rene Dokbua on Thu, 21 June 2012 04:44
		Re: vswap question - physpages/oomguarpages By: Kirill Korotaev on Thu, 21 June 2012 05:37
		Re: vswap question - physpages/oomguarpages By: kir on Tue, 26 June 2012 19:16

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