[logback-user] Multiple files and other issues

Ceki Gulcu ceki at qos.ch
Fri Mar 6 12:16:35 CET 2009

The type of separation is possible. However, it is a relatively advanced 
feature. I suggest that you start by using MDC and go from there. MDC will allow 
you to distinguish log entries from issued from different sessions. However, all 
the logs will still go to the same file.

Documentation on MDC can be found at



Marco Bresciani wrote:
> Sorry, I was not clear.
>   What happens now, with the basic file, is:
> 1. I run my application;
> 2. the file trace/WebEML is created;
> 3. the application is running;
> 4. I run another session of my application (i.e.: double click again);
> 5. the same trace/WebEML file seems used.
> I'd like to have, for example, something like:
> trace/WebEML_111145.log for the first application session, ran at 11:11.45
> and
> trace/WebEML_111222.log for the secon application session, ran at 11:12.22
> or something like that, in order to distinguish the two different logs. Is
> it possible?
> Thanks,
> Marco 
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Ceki Gülcü
Logback: The reliable, generic, fast and flexible logging framework for Java.

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