[Play 2.2.x Scala] Disable logging during startup

[René Grüner Vangsgaard]

During startup a lot of logging is going on about Logback itself. Can I disable it. It is especially annoying when testing specs.

Thank you,
René

[René Grüner Vangsgaard]

As a workaround I disable the stdout appender.

For reference:

<configuration>

    <conversionRule conversionWord="coloredLevel" converterClass="play.api.Logger$ColoredLevel" />

    <property scope="local" name="defaultPattern" value="%date{yyyy-MM-dd HH:mm:ss Z,UTC} %-5level %logger{1} ~ %message%xException%n"/>

    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>./logs/application.log</file>
        <encoder>
            <pattern>${defaultPattern}</pattern>
        </encoder>
    </appender>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>${defaultPattern}</pattern>
        </encoder>
    </appender>

    <logger name="play" level="INFO" />
    <logger name="application" level="DEBUG" />

    <root level="INFO">
        <appender-ref ref="FILE" />
    </root>

</configuration>

[Will Sargent]

You probably have more than one SLF4J logger defined.  You should define the debug mode in logback.xml with: 

<configuration debug="true"> 

http://logback.qos.ch/manual/configuration.html

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[René Grüner Vangsgaard]

Thanks for the answer. I actually had an error in my Logback configuration, though it wasn't multiple SLF4J loggers. I was using ScalyrAppender (https://github.com/scalyr/scalyr-logback) with nested XML which wasn't valid for this appender.