Python and Zope
phd at phd.pp.ru
Mon Sep 10 11:03:12 CEST 2001
On Sun, Sep 09, 2001 at 11:07:15AM -0400, Ignacio Vazquez-Abrams wrote:
> > Apache modules are just CGIs. Apache forks off a child at random, and at
> > random kills children. On the other hand, web-application server is always
> > in memory. This allows for the server to create persistence connection to a
> > DB. How can you implement persistence connection in Apache module? Those
> > "solutions" that are in mod_perl and mod_python are (in my not so humble
> > opinion) just unstable hacks.
> Also, Apache does not fork and kill children at random. A certain minimum
> number of children are created at startup, more are created up to a maximum
> number if necessary, and once a child has served a certain number of
> connections, it is killed. This results in maximum stability because any
> memory problems only have a limited amount of time to live.
"At random" meant "out of control of the module". A module cannot
predict forking/killing, it cannot even get information about it. It is not
the module who controls forking and killing - it is Apache.
Oleg Broytmann http://phd.pp.ru/ phd at phd.pp.ru
Programmers don't die, they just GOSUB without RETURN.
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