[mod_python] High traffic recommendations

Hi Marc,

How does Apache behave WRT memory ? There are known memory leaks in
mod_python version prior to 3.2.7, so I would advise you to upgrade to
3.2.7 if you can.

Regards,
Nicolas

2006/2/15, Marc D. Murray <marcdm at phronein.com>:
> I just 'completed' an application (website) using mod_python.
> - I'm using the mod_python.publisher handler
> - Each page is a function in a module.
> - Apache config has MultiViews enabled
> - Apache/2.0.54 (Debian GNU/Linux) mod_python/3.1.3 Python/2.3.5
> PHP/4.3.10-16 mod_ssl/2.0.54 OpenSSL/0r
>
> However, I'm having a problem where the server (Apache) goes down every
> 3 - 4 hours.
>
> At first, I was getting a DBNoMemory error every half hour. Then I
> started caching database look-ups using memcached.
>
> Site was still going down. Now, every hour or two, instead of 40 min.
>
> So now, I'm caching entire pages but it still going down. Every few
> hours.
>
> This is how I'm outputting pages :
> --> request comes in
> --> mod_python.publisher decides which module.function to execute
> --> function checks session variables and loads config from cache or
> *.conf file.
> --> generate cache_key as sitename:req.unparsed_uri:lang
> --> If item in cache, return cached paged
> --> generate page, insert into cache for 4 hrs --> return output.
>
> But I'm still being told by Apache that it has reached MaxClients every
> few hours.
>
> in /etc/apache2/apache.conf I have the following :
>
>         KeepAlive Off
>         Timeout 10
>         <IfModule prefork.c>
>         StartServers         5
>         MinSpareServers      5
>         MaxSpareServers     10
>         MaxClients          80
>         MaxRequestsPerChild  500
>         </IfModule>
>
> Anyone see anything wrong with what's going on here? It's driving me
> crazy with this crashing, and I can't seem to find a solution.
>
> Thanks.
>
> Marc DM.
>
> PS. The server is the same one that used to run the same site in
> mod_mono. Except with mod_mono the server would climb to 32%cpu and stay
> there or climb higher. With mod_python, it never passes 4% Apache Dies.
> Why?
>
>
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