Hi folks,
When I use the profiling tool off the Netbeans 6.1 IDE, I see lots of Threads
that got the name "org.apache.log4j.xml.XMLWatchdog". Unfortunately I didn't
find much documentation about that, that's why I'm posting here.
My problem is that there's lot's of threads (about 5 per instance of B) with
this name when I profile code that looks like the code below. Why is that? Does
log4j really need them? The profiler says they are waiting all the time.
Regards,
Martin
java-code:
class A{
DOMConfigurator.configure("log4j_config.xml");
Logger loggerA = Logger.getLogger("loggerA");
B b1 = new B();
B b2 = new B();
B b3 = new B();
}
class B{
Logger loggerB = Logger.getLogger("loggerB");
}
log4j_config.xml:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/";>
<appender name="drfa" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="C:\\Root.log"/>
<param name="Append" value="true"/>
<param name="MaxFileSize" value="100KB"></param>
<param name="MaxBackupIndex" value="5"></param>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{dd/MMM/yyyy HH:mm:ss,SSSS} [%t]
- %p - %m%n"/>
</layout>
</appender>
<appender name="rfa_a" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="C:\\A.log"/>
<param name="Append" value="true"/>
<param name="MaxFileSize" value="200KB"></param>
<param name="MaxBackupIndex" value="10"></param>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{dd/MMM/yyyy HH:mm:ss,SSSS} [%t]
- %p - %m%n"/>
</layout>
</appender>
<appender name="rfa_b" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="C:\\B.log"/>
<param name="Append" value="true"/>
<param name="MaxFileSize" value="200KB"></param>
<param name="MaxBackupIndex" value="10"></param>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{dd/MMM/yyyy HH:mm:ss,SSSS} [%t]
- %p - %m%n"/>
</layout>
</appender>
<logger name="loggerA" additivity="false">
<level value ="all" />
<appender-ref ref="rfa_a"/>
</logger>
<logger name="loggerB" additivity="false">
<level value ="all" />
<appender-ref ref="rfa_b"/>
</logger>
<root>
<priority value ="info"/>
<appender-ref ref="drfa"/>
</root>
</log4j:configuration>
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