Hello,

You can create 2 appenders :
- one for your specific file (only errors) and the other with all levels
- use filters in the first one : http://logback.qos.ch/manual/filters.html  the way the 1st appender log only the logs with level.isEquals error level

Regards

From: bertrand.dechoux-prestataire@bforbank.com
To: logback-user@qos.ch
Date: Fri, 19 Aug 2011 08:50:16 +0000
Subject: [logback-user] All error in a separate file

Hi,
 
I am new to logback configuration. I have read the online manual but clearly not in depth.
 
I would like to log in a separate file all ERROR logs but keep these logs at the same time where they are supposed to be.
 
I understand I could use root with an ERROR level and a file appender but then I woul lose all the details (logs lower than ERROR).
 
Is there any obvious way that I might have missed?
 
Regards,
 
Bertrand Dechoux
 
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