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Posted to log4j-user@logging.apache.org by Ajay Dhanawade <aj...@hotmail.com> on 2001/12/04 02:57:46 UTC
AsyncAppender creating too many threads.....
Hi All,
I had poste dthis question earlier as well. I am havinn problem with the
AsyncAppender. We are trying to implement the log4j in our J2EE application.
When we start the application and monitor we see 80 threads created whereas
the Weblogic server 6.0sp1 which we are usinf spawns max 30 threads.
What can be wrong ? I am using log4j version 1.2. Follwoing is the config
file for log4j
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration SYSTEM "log4j.dtd">
<configuration configDebug="false">
<appender name="ASYNC" class="org.apache.log4j.AsyncAppender">
<appender-ref ref="TEMP"/>
</appender>
<appender name="TEMP" class="org.apache.log4j.RollingFileAppender">
<param name="Append" value="false" />
<param name="Prefix" value="/bea/logs/test-" />
<param name="Postfix" value=".log" />
<param name="MaxFileSize" value="1" />
<param name="MaxBackupIndex" value="1" />
<layout
class="org.apache.log4j.examples.appserver.AppServerPatternLayout">
<param name="ConversionPattern"
value="%d %-5p [%t] %C{2} (%F:%L) - %m\n"/>
</layout>
</appender>
<root>
<priority value="debug"/>
<appender-ref ref="ASYNC"/>
</root>
</configuration>
I have a designed a class to use log4j which is as follows:
import org.apache.log4j.*;
import org.apache.log4j.xml.*;
import javax.servlet.http.HttpServletRequest;
import java.io.Serializable;
public class TracerLogger implements ITracerLogger,Serializable{
String componentName = null;
String sessionID = null;
public TracerLogger(String className){
componentName = className;
}
public TracerLogger(HttpServletRequest req, String className){
sessionID = req.getRequestedSessionId();
componentName = className;
}
public Category getCategory(){
AppServerCategoryFactory factory;
factory = new AppServerCategoryFactory("MyServer", "ActionMail",
sessionID);
AppServerCategory.setFactory(factory);
Category cat = AppServerCategory.getInstance(componentName);
PatternLayout layout = new AppServerPatternLayout();
cat.addAppender( new AsyncAppender());
return cat;
}
public void debug(String message){
Category cat = getCategory();
cat.debug(message);
}
public void error(String message){
Category cat = getCategory();
cat.error(message);
}
public void info(String message){
Category cat = getCategory();
cat.info(message);
}
public void warn(String message){
Category cat = getCategory();
cat.warn(message);
}
public void fatal(String message){
Category cat = getCategory();
cat.fatal(message);
}
}
This class is instantiated in each and every class which logs the messages
to a file.
Please can anyone give me pointers on what might be the cause for so many
threads getting created?
Help is appriciated...
CIAO
Ajay
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Re: AsyncAppender creating too many threads.....
Posted by Kevin Steppe <ks...@pacbell.net>.
In your TracerLogger getCategory() method, you have:
cat.addAppender( new AsyncAppender());
That (obviously) creates a new appender for -every- class. Try configuring once and
putting the appender on the root category. Obviously you don't need a different
appender for every class in your system.
Kevin
ps. This may be insulting but you probably weren't answered last time b/c you hadn't
taken 5 seconds to find your own bug.
Ajay Dhanawade wrote:
> Hi All,
>
> I had poste dthis question earlier as well. I am havinn problem with the
> AsyncAppender. We are trying to implement the log4j in our J2EE application.
> When we start the application and monitor we see 80 threads created whereas
> the Weblogic server 6.0sp1 which we are usinf spawns max 30 threads.
>
> What can be wrong ? I am using log4j version 1.2. Follwoing is the config
> file for log4j
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE configuration SYSTEM "log4j.dtd">
>
> <configuration configDebug="false">
>
> <appender name="ASYNC" class="org.apache.log4j.AsyncAppender">
> <appender-ref ref="TEMP"/>
> </appender>
>
> <appender name="TEMP" class="org.apache.log4j.RollingFileAppender">
> <param name="Append" value="false" />
> <param name="Prefix" value="/bea/logs/test-" />
> <param name="Postfix" value=".log" />
> <param name="MaxFileSize" value="1" />
> <param name="MaxBackupIndex" value="1" />
> <layout
> class="org.apache.log4j.examples.appserver.AppServerPatternLayout">
> <param name="ConversionPattern"
> value="%d %-5p [%t] %C{2} (%F:%L) - %m\n"/>
> </layout>
> </appender>
>
> <root>
> <priority value="debug"/>
> <appender-ref ref="ASYNC"/>
> </root>
> </configuration>
>
> I have a designed a class to use log4j which is as follows:
>
> import org.apache.log4j.*;
> import org.apache.log4j.xml.*;
> import javax.servlet.http.HttpServletRequest;
> import java.io.Serializable;
>
> public class TracerLogger implements ITracerLogger,Serializable{
> String componentName = null;
> String sessionID = null;
>
> public TracerLogger(String className){
> componentName = className;
> }
>
> public TracerLogger(HttpServletRequest req, String className){
> sessionID = req.getRequestedSessionId();
> componentName = className;
> }
>
> public Category getCategory(){
> AppServerCategoryFactory factory;
> factory = new AppServerCategoryFactory("MyServer", "ActionMail",
> sessionID);
> AppServerCategory.setFactory(factory);
>
> Category cat = AppServerCategory.getInstance(componentName);
> PatternLayout layout = new AppServerPatternLayout();
> cat.addAppender( new AsyncAppender());
> return cat;
> }
>
> public void debug(String message){
> Category cat = getCategory();
> cat.debug(message);
> }
>
> public void error(String message){
> Category cat = getCategory();
> cat.error(message);
> }
>
> public void info(String message){
> Category cat = getCategory();
> cat.info(message);
> }
>
> public void warn(String message){
> Category cat = getCategory();
> cat.warn(message);
> }
>
> public void fatal(String message){
> Category cat = getCategory();
> cat.fatal(message);
> }
> }
>
> This class is instantiated in each and every class which logs the messages
> to a file.
>
> Please can anyone give me pointers on what might be the cause for so many
> threads getting created?
>
> Help is appriciated...
>
> CIAO
> Ajay
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
>
> --
> To unsubscribe, e-mail: <ma...@jakarta.apache.org>
> For additional commands, e-mail: <ma...@jakarta.apache.org>
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To unsubscribe, e-mail: <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>