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July 28, 2006

Debugging Perl in Apache

Years ago I worked on a Apache/Perl-based web where Apache/mod_perl had been compiled by a former contractor. It had this cool feature that when Apache was starting if there was a compilation problem the startup would abort and print the Perl error on the terminal. Made it easy to see and resolve issues quickly.

Later on when I had to rebuild our Apache from source we lost that feature (no documentation on the build process). I spent a little time trying to find the solution, but never did.

I must not have stumbled into the mod_perl Debugging document, which has a lot of information on setting up debugging in various levels of detail and locations in your Apache/Perl environment.

Side note: I've really gotten to appreciate the Perl debugger over the past few months. Yes, adding print statements is a hard habit to break, but in most instances the debugger is easier, doesn't mess up the code, and adds some additional value (like being able to move down a few lines of code and test values again).

Posted by mike at July 28, 2006 12:45 PM

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