Crashing TUX

[Nicolas Van Eenaeme]

Hi William,

Last week I had a crash again and I managed to do the ps aux | grep '
[DRZ]'. This is the output:

poison at static:~$ ps aux | grep ' [DRZ]'
USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
root         5  0.0  0.0     0    0 ?        Z    Nov02   1:23 [kswapd]
<defunct>
web        412  0.0  0.0  2260  816 ?        D    Nov02   0:08 [TUX worker
0]
web        413  3.5  0.0  2260  816 ?        R    Nov02 101:00 [TUX worker
1]
web        414  0.0  0.0  2260  816 ?        D    Nov02   0:00 [TUX worker
0]
web        417  0.1  0.0  2260  816 ?        D    Nov02   3:24 [TUX worker
1]
web        418  0.0  0.0  2260  816 ?        D    Nov02   0:02 [TUX worker
1]
nobody   18631  0.6  0.0  1532  736 ?        D    06:25   1:13 /usr/bin/find
/ ( -fstype NFS -o -fstype nfs -o -fstype afs -o -fstype proc -o -fstype
smbfs -o -fstype autofs -o -fstype iso9660 -o -fstype ncpfs -o -fstype coda
-o -fstype devpts -o -fstype ftpfs -o -fstype devfs -o -fstype mfs -o
-fstype shfs -o -fstype sysfs -o -fstype cifs -o -fstype lustre_lite -o
-type d -regex
\(^/tmp$\)\|\(^/usr/tmp$\)\|\(^/var/tmp$\)\|\(^/afs$\)\|\(^/amd$\)\|\(^/alex
$\)\|\(^/var/spool$\)\|\(^/sfs$\)\|\(^/media$\) ) -prune -o -print
poison   18919  1.0  0.0  2488  872 pts/0    R+   09:22   0:00 ps aux
poison   18920  0.0  0.0  1544  476 pts/0    R+   09:22   0:00 grep  [DRZ]

I don't know what that find process is but I think it shouldn't be there.
Maybe the TUX worker 1 (PID 413) is the problem.

Do you have any ideas what could be causing these crashes?

Thanks in advance,
Nicolas Van Eenaeme

-----Oorspronkelijk bericht-----
Van: tux-list-bounces at redhat.com [mailto:tux-list-bounces at redhat.com] Namens
William Lovaton
Verzonden: vrijdag 21 oktober 2005 14:29
Aan: TUX discussion list
Onderwerp: Re: Crashing TUX

Hi Nicolas,

Are you sure your load problems are about tux? Did you checked your cron
jobs? may be it's logrotate or something like that.  When the load is
that high you can log into the system and execute this command:
	ps aux | grep ' [DRZ]'

All of the processes with state D or R are the ones generating the high
load, with this information you can identify the offending processes.

BTW, what distro and version are you using?  Right now I have a lot of
experience with Fedora Core 3.

-William


El vie, 21-10-2005 a las 10:02 +0200, Nicolas Van Eenaeme escribió:
> Hi all,
> 
>  
> 
> I’m running TUX on a popular website here in Belgium (>2.000.000
> pageviews / day) and I use it to serve all my static content (images,
> css, 
).
> 
> This works great. The average load on my server stays below 1. But
> after each period of 5 days (average) the load suddenly goes to 6 or
> above (I can see this on my MRTG stats) and it takes ages to serve a
> simple image. If this happens the only way to fix it is to reboot my
> server. It’s strange because this happens early in the morning
> (usually between 5 – 7 am.) when there are almost no users on the
> site.
> 
>  
> 
> Is there somebody who can help me or do you have some suggestions for
> me how I can fix this? I’m running the 2.4 kernel.
> 
>  
> 
> Thanks in advance,
> 
> Nicolas Van Eenaeme
> 
> 
> _______________________________________________
> tux-list mailing list
> tux-list at redhat.com
> https://www.redhat.com/mailman/listinfo/tux-list

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