[logback-user] Evaluators and Markers - no applicable action

buzzterrier terry.jeske at gmail.com
Wed May 19 19:20:57 CEST 2010

I am trying to setup a simple evaluator for an appender. I want certain debug
messages to be emailed, while the default will just go to stdout.

Here is my context  (note for this test both appenders output to the
console, although one is named EMAIL):


  <appender name="STDOUT"
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} -
    <appender name="EMAIL"
   <evaluator class="ch.qos.logback.classic.boolex.OnMarkerEvaluator">
      <pattern>%d{HH:mm:ss.SSS} %-5level %logger{36} - %msg%n</pattern>

     <level value="debug" />
     <appender-ref ref="STDOUT" />
     <appender-ref ref="EMAIL" />

The context gives the following error:
07:30:14,121 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter at 19:72 - no
applicable action for [evaluator], current pattern is
07:30:14,121 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter at 20:15 - no
applicable action for [marker], current pattern is

Any ideas? 

Also, can you describe the difference between and evaluator and a filter?


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