Retire your debugger, log smartly with Log::Log4perl!
(an older article, but I found it quite good)
You’ve rolled out an application and it produces mysterious, sporadic errors? That’s pretty common, even if fairly well-tested applications are exposed to real-world data. How can you track down when and where exactly your problem occurs? What kind of user data is it caused by? A debugger won’t help you there.
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