[logback-user] Split logs to different files by MDC?

Yura Levandovskyy liova_89 at yahoo.ca
Fri Jun 15 20:26:43 CEST 2012

Oh wow, I actually haven't noticed that I just have FileAppender, not RollingFileAppender
The 'home' property is defined higher up, so that part works well now
Thank you for the hint about debug, going to save a lot of frustration

Could you advise on how to use <if> with mdc values? What I'm trying is the following:

I have this in my SiftingAppender:

I want to determine the file name depending on the property, such that (inside rollingPolicy):

                <if condition='property("variable").equals("default")'>

At the moment the .equals check seems to fail all the time, and so the 1st fileNamePattern is never used. What am I doing wrong?

 From: ceki <ceki at qos.ch>
To: logback users list <logback-user at qos.ch> 
Sent: Thursday, June 14, 2012 1:02:19 PM
Subject: Re: [logback-user] Split logs to different files by MDC?
By the way, since the home property is used within SiftingAppender, it
should be defined in the "context" scope. Example:

   <property name="home" value="/tmp" scope="context"/>


On 14.06.2012 18:57, ceki wrote:
> Hi Yura,
> There multiple errors in the config you provided (independent of
> SiftingAppender). As a general recommendation, you should set the
> debug attribute to true to see the errors.
> <configuration debug="true">
> ...
> </configuration?
> Here are a few hints.
> Hint1: ch.qos.logback.core.rolling.RollingFileAppender not FileAppender
> Hint2: SizeAndTimeBasedFNATPExt does not exist
> HTH,
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