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: <discriminator> <key>variable</key> <defaultValue>default</defaultValue> </discriminator> I want to determine the file name depending on the property, such that (inside rollingPolicy): <if condition='property("variable").equals("default")'> <then> <fileNamePattern>${home}/logs/generic-logs.%d{yyyy-MM}.%i.log</fileNamePattern> </then> <else> <fileNamePattern>${home}/logs/${variable}.%d{yyyy-MM-dd}.%d{HHmm,aux}.%i.log</fileNamePattern> </else> </if> 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@qos.ch> To: logback users list <logback-user@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"/> HTH, -- Ceki http://twitter.com/#!/ceki 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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