Hello Mark,

Logback offers an alternative to log4j NDC (nested diagnostic context) with a similar concept called MDC (mapped diagnostic context). See http://logback.qos.ch/manual/mdc.html for further details.

We dropped NDC in favor of MDC because the latter is easier to manage. With MDC you need to manage a map instead of a stack. By the way, log4j has both NDC and MDC.

HTH,

Mark Libucha wrote:
Hi there,

Considering a switch from log4j to logback...

I use log4j's NDC functionality in order to be able to easily trace a
webapp request through all levels of my code with minimal effort.

So, why didn't NDC make it into logback, and what alternatives do I
have for replacing NDC if I do switch to logback?

Thanks!

Mark
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Ceki Gülcü
Logback: The reliable, generic, fast and flexible logging framework for Java.
http://logback.qos.ch
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