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Posted to users@httpd.apache.org by John Wards <j....@sportnetwork.net> on 2002/09/02 11:03:45 UTC
[users@httpd] Ram Usage
Hi folks,
I have been getting increasingly concerend with apache 1.3 using so much RAM
per process. Before the weekend it was using about 20-25 meg per process now
it is using about 30 meg.....With a website that is getting about 100,000
pageviews a day and will proably do about 150,000 today if the server
doesn't run out of RAM this is rather worrying.
Should Apache be using this amount of RAM and is their any tools that I can
use to see what the heck is going on?
Cheers
John Wards
SportNetwork.net
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Re: [users@httpd] Ram Usage
Posted by "i.t" <i....@ithum.de>.
> I have just restarted Apache (full not graceful) and the processes are
> still using about 30 Meg of ram. This was as soon as it restarted.
>
> Is their any tools available to see what is causing this?
>
you may start with server-status
set ExtendedStatus ON
looks like you're better off with a self-compiled server
--
_ ___
| | Irmund Thum
| |
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Re: [users@httpd] Ram Usage
Posted by John Wards <j....@sportnetwork.net>.
>
> On Mon, 2 Sep 2002, John Wards wrote:
>
> > I have been getting increasingly concerend with apache 1.3 using so much
RAM
> > per process. Before the weekend it was using about 20-25 meg per process
now
> > it is using about 30 meg.....With a website that is getting about
100,000
> > pageviews a day and will proably do about 150,000 today if the server
> > doesn't run out of RAM this is rather worrying.
> >
> > Should Apache be using this amount of RAM and is their any tools that I
can
> > use to see what the heck is going on?
>
> It is not uncommon for something (say an external library) to slowly leak
> memory due to imperfections in the code.
>
> Restarting apache, or restarting the child which has leaked will generally
> reclaim this memory. For this reason it is possible to specify a
> MaxRequests number a child should handle before it recycles itself.
>
> Setting this to a couple of thousand requests generally solves this issue;
> that way there is virtually no load due to the extra dying/recreation of
> children - yet small memory leaks in for example an oracle or php adaptor
> stay managable.
>
> Dw
I have just restarted Apache (full not graceful) and the processes are still
using about 30 Meg of ram. This was as soon as it restarted.
Is their any tools available to see what is causing this?
Cheers
John Wards
SportNetwork.net
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Re: [users@httpd] Ram Usage
Posted by Dirk-Willem van Gulik <di...@webweaving.org>.
On Mon, 2 Sep 2002, John Wards wrote:
> I have been getting increasingly concerend with apache 1.3 using so much RAM
> per process. Before the weekend it was using about 20-25 meg per process now
> it is using about 30 meg.....With a website that is getting about 100,000
> pageviews a day and will proably do about 150,000 today if the server
> doesn't run out of RAM this is rather worrying.
>
> Should Apache be using this amount of RAM and is their any tools that I can
> use to see what the heck is going on?
It is not uncommon for something (say an external library) to slowly leak
memory due to imperfections in the code.
Restarting apache, or restarting the child which has leaked will generally
reclaim this memory. For this reason it is possible to specify a
MaxRequests number a child should handle before it recycles itself.
Setting this to a couple of thousand requests generally solves this issue;
that way there is virtually no load due to the extra dying/recreation of
children - yet small memory leaks in for example an oracle or php adaptor
stay managable.
Dw
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