Threads, mod_mpm and broken applications

[Arno Töll]

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Hi there,
(please CC:-me and send follow-ups to debian-apache at l.d.o, too)

On behalf of the Apache maintainers I was inventing policies the other
day. In particular I was thinking when and how web applications should
be allowed to declare dependencies against particular Apache web
server modules, and, in addition to that to a particular MPM.

You might know, we're in preparation of an Apache 2.4 transition which
- - among lots of other features - allows to change the MPM just like
any other simple Apache module. PHP is traditionally bad at supporting
anything but the prefork MPM, mod_perl does it better.

However, as a Perl programmer I know many Perl applications (and
libraries) are not thread safe. Thus I wonder, do you happen to know
any Perl application using mod_perl which might force a particular MPM
in order to run correctly?

If so, we need to include such corner cases into our considerations.
If not - even better - less headache to us.


- -- 
with kind regards,
Arno Töll
IRC: daemonkeeper on Freenode/OFTC
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