On Mon, Nov 28, 2005 at 04:29:22PM +0100, Gerhard Schmidt wrote:
> I don't have exakt numbers. We started with pcgi and had heavy problems 
> under load. They disapeared with the fastCGI module coming wird zope 2.6
> i gues. I ve tried mod_proxy back than but had many problems. I can not 
> test on the Production system as there are 40000 users on the system and
> we have enougth Problems with Readconflictes and Session problems. 

I'm not surprised you had problems with PCGI, it was known to be
extremely slow. AFAIK it ran zope in single-threaded mode so
concurrency was terrible. 

It sounds like you have concluded that, because FCGI is faster than
PCGI, then FCGI must also be faster than mod_rewrite / mod_proxy.
That's just not logical.

p.s. If you're having session problems and read conflicts with 2.6, 
you should strongly consider upgrading to *at least* 2.7.3 and maybe 2.8.
Heavy use of sessioning is still not perfect (see Dennis Allison's
recent threads), but it is *much* better since 2.7.3.
In addition, ReadConflictErrors are greatly reduced since the
release of ZODB 3.3, which first shipped with Zope 2.8.


Paul Winkler
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