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From:Johan De Meersman Date:August 5 2010 8:09pm
Subject:Re: mysql and oom-killer
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You don't want to mess with OOM too much - you risk it killing off other
useful/critical things, like SSH daemons, the Apache root, what have you.

Add more memory to the box or split the webserver off to another system, I'd
say.


2010/8/5 Евгений Килимчук <ekilimchuk@stripped>

> I can't write my config parameters now.
>
> 5 августа 2010 г. 23:02 пользователь Евгений
> Килимчук
> <ekilimchuk@stripped>написал:
>
> > Mysql used 5GB (buffers + 400 connections) of memory, but CGI-script some
> > time made heavy load when used many memory and used SWAP. OOM-killer must
> > kill new cgi-forks, wich use many memory, but it kill mysqld and sshd.
> >
> > 2010/8/5 Walter Heck - OlinData.com <lists@stripped>
> >
> > It would be a lot better to make sure your server doesn't turn
> >> OOM-psycho on you. The most common case of this happening is that you
> >> have set the memory-settings in your my.cnf in such a way that it
> >> allows MySQL to use more memory then you have available. Could you
> >> post your my.cnf here by chance?
> >>
> >> Walter Heck
> >> Engineer @ Open Query (http://openquery.com)
> >>
> >> On Fri, Aug 6, 2010 at 02:43, Евгений Килимчук
> <ekilimchuk@stripped>
> >> wrote:
> >> > Hello!
> >> >
> >> > I use CentOS 5.4 with LAMP. On the server runs heavy cgi-programs.
> MySQL
> >> use
> >> > 75% (100% = 8GB) of memory. When cgi programs use more than 25% of
> >> memory
> >> > and all SWAP file (8GB), kernel run OOM-Kiler wich kill mysqld
> procces.
> >> >
> >> > I use:
> >> >
> >> > echo "0" > /proc/sys/vm/swappiness - This allows to reduce using of
> >>  SWAP.
> >> >
> >> > I want to use:
> >> > echo "-17" > /proc/`pidof mysqld`/oom_adj - This allows save mysqld
> when
> >> run
> >> > oom-killer.
> >> >
> >> > Someone used this option?
> >> >
> >>
> >
> >
> >
> > --
> > Best regards,
> >
> > Eugene Kilimchuk <ekilimchuk@stripped>
> >
>
>
>
> --
> Best regards,
>
> Eugene Kilimchuk <ekilimchuk@stripped>
>



-- 
Bier met grenadyn
Is als mosterd by den wyn
Sy die't drinkt, is eene kwezel
Hy die't drinkt, is ras een ezel

Thread
mysql and oom-killerЕвгений Килимчук5 Aug
  • Re: mysql and oom-killerWalter Heck - OlinData.com5 Aug
    • Re: mysql and oom-killerЕвгений Килимчук5 Aug
      • Re: mysql and oom-killerЕвгений Килимчук5 Aug
        • Re: mysql and oom-killerJohan De Meersman5 Aug
          • Re: mysql and oom-killerЕвгений Килимчук5 Aug
            • Re: mysql and oom-killerRob Wultsch6 Aug
              • Re: mysql and oom-killerRob Wultsch6 Aug