On Thu, 12 Feb 2009 00:08:08 +0800 howard chen <howachen@xxxxxxxxx> wrote: > But I just wonder, isn't all mod_php/mod_python/mod_perl/mod_ruby are > relying on the same set of popular 3rd party libraries? e.g. zlib, > libxml, expat, iconv....so the above statement is also true in > mod_python/mod_perl/mod_ruby? There are relatively few libraries that are positively not thread-safe (some elderly graphics stuff like libjpeg springs to mind). However, there are many libraries that can be made non-thread-safe by sloppy programming in applications that use them. I think they must've fixed it by now, but PHP+libxml2 a few years ago was notoriously *much* worse than just non-thread-safe: it could foul up *any* non-PHP application that uses the lib, by *globally* installing its own error handlers. So, other module hits a parse error, php's handler gets invoked but is uninitialised - SEGFAULT! > So it turn out that Threaded MPM is only suitable for serving static > pages? Nope. Plenty of dynamic apps work with threaded MPMs. With or without perl/python/ruby/whatever. -- Nick Kew Application Development with Apache - the Apache Modules Book http://www.apachetutor.org/ --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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