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Posted to users@httpd.apache.org by "SEGOUFFIN, Pascal" <ps...@eurosport.com> on 2005/03/28 16:20:28 UTC
RE : [users@httpd] Strange Problem
Would be good to know if you had memory problems at that time too, i was running apache 2.0.53 on suse 9.2 and had memory leak problems even with apache not using any special modules. When the system started to swap, the server was not responding, and sometimes after some minutes the kernel managed to kill httpd and the cycle could start again ... running fine ..then memory leak ..then pache and system stuck again.
I m running no apache 1.3.33 on the same server and system and i have no more problems. The memory gets to 10 000 KB free and dont move from there nor swap.
Pascal
-------- Message d'origine--------
De: PMilanese@nypl.org [mailto:PMilanese@nypl.org]
Date: lun. 28/03/2005 16:16
À: users@httpd.apache.org
Cc:
Objet: RE: [users@httpd] Strange Problem
> On Monday 28 March 2005 07:27, Yannis Tsakiris wrote:
> > In this condition the server is not responding and all I can do is to
> > reboot the machine.
>
> It sounds like you have a problem with your CPU getting hot and the box
> just
> stops.
>
> I have two boxes with the same mobo and both of them did what you
> describe.
> Adding more air flow to help keep the box cool stopped the problem.
This
> may
> or may not be your problem.
>
When you sat the 'server' is not responding, do you mean the console -or-
Apache? Bad or looping code can cause the CPU to react as you describe. It
is unclear to me what you mean by 'not responding'...
Pete
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Re: [users@httpd] Strange Problem
Posted by apache <ap...@ayni.com>.
Hi Yannis
i had a similar problem like yours on a machine with much less load than
yours.
i had run apache in the worker mpm (i.e. threaded) with a php processer,
the thread handling of which i was not sure about.
my solution: run apache in the profork mpm and no problem anymore.
it seams as if the apache thread handling could not cooperate with the
php thread handling at a certain (imprevisible) point in time.
suomi
Yannis Tsakiris wrote:
>> Would be good to know if you had memory problems at that time too, i
>> was running apache 2.0.53 on suse 9.2 and had memory leak problems
>> even with apache not using any special modules. When the system
>> started to swap, the server was not responding, and sometimes after
>> some minutes the kernel managed to kill httpd and the cycle could
>> start again ... running fine ..then memory leak ..then pache and
>> system stuck again.
>> I m running no apache 1.3.33 on the same server and system and i have
>> no more problems. The memory gets to 10 000 KB free and dont move
>> from there nor swap.
>> Pascal
>
>
> # free
> total used free shared buffers cached
> Mem: 1032240 1018808 13432 0 218684 553084
> -/+ buffers/cache: 247040 785200
> Swap: 0 0 0
>
> This is the output I get from the free command. It looks always like
> this (about 10MB free), both when the server runs smoothly and when
> the server is crashing.
>
>> > It sounds like you have a problem with your CPU getting hot and the
>> box
>> > just stops.
>
>
> No, this is not the case. The computer is still up and running, the
> problem is in the application layer. I can still execute commands or
> even restart the apache server when this happens. If the CPU just
> stopped because of excessive temperature I should get a still screen
> with no keyboard or mouse response.
>
>> When you sat the 'server' is not responding, do you mean the console
>> -or-
>> Apache? Bad or looping code can cause the CPU to react as you
>> describe. It
>> is unclear to me what you mean by 'not responding'...
>> Pete
>
>
> You are right.. maybe the term I used was inappropriate.
> I mean that when you ask a page from the web server you will never
> have it (you'll get time out) and when you try to type and execute a
> command in the shell, it goes very very slow (you type a character and
> it appears with lots of seconds delay).
>
> Yannis Tsakiris
>
>
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Re: [users@httpd] Strange Problem
Posted by Yannis Tsakiris <gt...@dolnet.gr>.
> Would be good to know if you had memory problems at that time too, i was
> running apache 2.0.53 on suse 9.2 and had memory leak problems even with
> apache not using any special modules. When the system started to swap, the
> server was not responding, and sometimes after some minutes the kernel
> managed to kill httpd and the cycle could start again ... running fine
> ..then memory leak ..then pache and system stuck again.
> I m running no apache 1.3.33 on the same server and system and i have no
> more problems. The memory gets to 10 000 KB free and dont move from there
> nor swap.
> Pascal
# free
total used free shared buffers cached
Mem: 1032240 1018808 13432 0 218684 553084
-/+ buffers/cache: 247040 785200
Swap: 0 0 0
This is the output I get from the free command. It looks always like this
(about 10MB free), both when the server runs smoothly and when the server is
crashing.
> > It sounds like you have a problem with your CPU getting hot and the box
> > just stops.
No, this is not the case. The computer is still up and running, the problem
is in the application layer. I can still execute commands or even restart
the apache server when this happens. If the CPU just stopped because of
excessive temperature I should get a still screen with no keyboard or mouse
response.
> When you sat the 'server' is not responding, do you mean the console -or-
> Apache? Bad or looping code can cause the CPU to react as you describe. It
> is unclear to me what you mean by 'not responding'...
> Pete
You are right.. maybe the term I used was inappropriate.
I mean that when you ask a page from the web server you will never have it
(you'll get time out) and when you try to type and execute a command in the
shell, it goes very very slow (you type a character and it appears with lots
of seconds delay).
Yannis Tsakiris
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