On Tue, 9 Aug 2011, Holger Jahn wrote:
> Now, we would like to add some generic info to all of the logged
> messages (OS name & version, for instance). Is there a way of telling
> Log4perl to do this, i.e. without having to add this info manually to
> all of the existing places where we currently log stuff?
Hi Holger,
absolutely, that's exactly what the so-called Mapped Diagnostic Context
in Log4perl is for. As explained here:
http://search.cpan.org/~mschilli/Log-Log4perl-1.33/lib/Log/Log4perl.pm#Mapped_Diagnostic_Context_%28MDC%29
your application can set certain values via MDC and your Log4perl layout
can be configured to display the set value via the %X{name} placeholder
in all your messages, without the need to touch the code of the
application.
Hope that helps.
-- -- Mike
Mike Schilli
[email protected]
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