I've used Log::Log4perl for quite a while. It turns out that most of the time the :easy interface is all I'm using. Also, "multiple categories" is something I've wanted and haven't exactly found. Maybe it's time to try something else.

Here's how I prefer to use the logging module: Pick a level using from one of the log statements (debug()/info()/warn()/error()/fatal()), give it zero or more "tags" (or "categories", or "keywords"), followed by the message. That's it. I don't want to have to explicitly create in every package a logger object with a certain category, or do any other unnecessary setup.

Later, in a log file or the configuration section, I can configure which levels, which set of tags, and which package/subroutine pattern, should go to which output (stdout/stderr, file, etc).

I want maximum level of flexibility in filtering log messages in output. Sometimes I want to stay at level warn() globally, but turn on debugging for only one or two subroutines which I'm interested in. Or, just shows debug() messages in a package which include the tag "dump", to let them dump data structures. Or maybe, in an SMTP server code, sometimes I want to temporarily turn on debugging for just a client IP/IP range, in Sundays, and then log all the DATA being sent by the client _if_ said mail body is larger than 20k and contain certain regex pattern. All this without modifying the source code, of course.

Any recommendations?

In reply to Choosing logging module by dgaramond2

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