[Zope] RE: Zope and mod_python

[Pascal Peregrina]

Well, I will check the options I used to compile python (I think it was
default options).

But I think that threading is mainly required for the Zope Servers (HTTP,
FTP, WEBDAV), which is precisely the part of the functionality we move to
Apache in the attempt I did (each child process runs a Zope instance that
only has one thread, i.e. that only handles one request at a time and that
only has 1 connection to ZEO).

Another place where threads were needed is ZODB, but again, in my attempt,
ZODB is handled in an external ZEO instance.

Pascal

-----Message d'origine-----
De : David Bear [mailto:David.Bear at asu.edu]
Envoyé : mardi 8 février 2005 17:35
À : Pascal Peregrina
Objet : Re: [Zope] RE: Zope and mod_python


this is interesting. Last I tried, mod_python was NOT thread enabled,
and therefore would NOT work with zope which needed a threaded version
of python. Has mod_python gone threaded now?

On Tue, Feb 08, 2005 at 11:43:46AM +0100, Pascal Peregrina wrote:
> The targeted architecture is : Apache2/mod_python/ZopeHandler <-> ZEO
> 
> At startup Apache initialize a pool of child processes (the processes that
> handle requests).
> Each Apache child process starts a python interpreter (mod_python does it)
> which in turns initialize an embedded Zope instance.
> 
> Child processes are reusable, so if you correclty set the pool in Apache,
> the python processes should live as long as Apache itself.
> 
> Note that I am not an Apache/mod_python specialist.
> It's just that when I wanted to try running Zope with mod_python, I found
on
> the web that apparently noone had done it before, and even that in odler
> versions of mod_python it was clearly stated that it was impossible to
> achieve.
> So I just decided to expose what I did to the community, to get feedback.
> 
> My installation has now been running for 5 days, and I have still no
issues,
> both browsing my site or using the ZMI.
> 
> Pascal
> 
> 
> -----Message d'origine-----
> De : Chris Withers [mailto:chris at simplistix.co.uk]
> Envoyé : mardi 8 février 2005 11:36
> À : Pascal Peregrina
> Cc : 'zope at zope.org '
> Objet : Re: [Zope] RE: Zope and mod_python
> 
> 
> Pascal Peregrina wrote:
> > This is because each request is handled in a dedicated Apache process,
> which
> > is linked to an independent python process.
> 
> Hmmm, how and where are connections made to the ZODB?
> Is there still a long-running process with this method?
> 
> Chris
> 
> -- 
> Simplistix - Content Management, Zope & Python Consulting
>             - http://www.simplistix.co.uk
> 
> 
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David Bear
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