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From <Kenneth....@barclayscapital.com>
Subject Extra RollingFileAppender with NLOG4j
Date Wed, 03 Nov 2010 15:55:29 GMT
I'm trying to get the RollingFileAppender from the extra log4j companion file working but I'm
having problems configuring the appender.  I am using this with the most current version of

The following is my config file:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <param name="Target" value="System.out"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%-5p %c{1} - %m%n"/>

    <appender name="logFileAppender" class="org.apache.log4j.rolling.RollingFileAppender">
        <rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
            <param name="FileNamePattern" value="/log/metrics.%d{yyyy-MM-dd-HH}.log" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%m%n" />

    <!--         -->
    <!-- Loggers -->
    <!--         -->
    <logger name="com.barcap.eq.common.metric.LoggingMetric" additivity="false">
        <level value="INFO" />
        <appender-ref ref="console" />
        <appender-ref ref="logFileAppender" />

        <priority value ="debug" />
        <appender-ref ref="console" />


At startup, I get the following errors:
log4j:ERROR Element type "rollingPolicy" must be declared.
log4j:ERROR The content of element type "appender" must match "(errorHandler?,param*,layout?,filter*,appender-ref*)".

If I attempt to write to the appender, I then get:
log4j:WARN Please set a rolling policy for the RollingFileAppender named 'logFileAppender'
log4j:ERROR No output stream or file set for the appender named [logFileAppender].

I think the issue is that the rollingPolicy element isn't defined in log4j.dtd but I'm not
sure how to proceed with this.  Is NLOG4J not compatible with the companion jar?



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