Question

I have a problem with the configuration of my logging with log4j. All the log messages are shown as expected in the root.log file, but the stdout, however, does only show a subset of the root.log although I configured it to be the same.

EDIT: Precisely I am missing all messages from a.b.

EDIT 2: I am not absolutely sure, but I think that some messages from a.b. (INFO and DEBUG) get loggedd on stdout, others don’t. Might that be a problem related to threads? E.g. some threads doing logging, some not?

The following is my log4j.xml, is there eventually a mistake?

<?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">
        <layout class="org.apache.log4j.PatternLayout">
             <param name="ConversionPattern" value="%d{HH:mm:ss,SSS} [%t] (%C:%L) %-5p - %m%n" />
        </layout>
    </appender>

    <appender name="FILE_ALL" class="org.apache.log4j.RollingFileAppender">
        <param name="File" value="${catalina.home}/logs/root.log"/>
        <layout class="org.apache.log4j.PatternLayout">
             <param name="ConversionPattern" value="%d [%t] %-4r (%F:%L) %-5p %x - %m%n" />
        </layout>
    </appender>

    <logger name="a.b.master">
        <level value="DEBUG" />
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="FILE_ALL" />
    </logger>

    <logger name="a.b.master.orm.support.HibernateSessionFilter">
        <level value="INFO" />
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="FILE_ALL" />
    </logger>

    <logger name="a.b.master.aop.hibernate.OpenSessionInRequestInterceptor">
        <level value="info" />
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="FILE_ALL" />
    </logger>

    <root>
        <level value="INFO"/>
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="FILE_ALL"/>
    </root>
</log4j:configuration>

I am using Commons Logging as implementation.

Thanks for the help!

Answer 1

I found the solution even if not the problem directly. I added a parameter to my ConsoleAppender that everything is printed to the stderr. This now works. I guess its a problem of eclipse or log4j because if i am starting the app from the terminal (console) I can see all log messages properly.

    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <param name="Target" value="System.err" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d [%t] %-4r (%F:%L) %-5p %x - %m%n" />
        </layout>
    </appender>