Retrieve Log4j Configuration

I am using apache log4j. It is working fine as per my log4j configuration file.
Recently log4j configuration getting changed dynamically by some other application. So my application is not logging as per my configuration.
I want to dynamically retrieve the log4j configuration.
Is it possible to do it programmatically.
Thanks,
Govind

Do you have to retrieve this configuration or do you simply want to override it?
Anyway, depending on your application type, have a look at DOMConfigurator and BasicConfigurator
Another tangent is to go the JMX route. Log4j exposes some MBeans that you can query and manipulate.

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Wim,
I am not aware of any get_application_property parameter to do this. Here is a workaround:
1. Create a custom parameter in Forms, for example "the_config_name"
2. In a global section of formsweb.cfg (assuming all you applications need to be aware of the config name) you create the following entry
otherparams=the_config_name=%config%
Now, in Foirms, you should be able to get the name of the configuration through :parameter.the_config_name
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thanks...
Liat
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">







<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
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You're just begging for a [url http://en.wikipedia.org/wiki/RTFM]four-letter response :-)
http://logging.apache.org/log4j/docs/manual.html
The addAppender method adds an appender to a given logger. Each enabled logging request for a given logger will be forwarded to all the appenders in that logger as well as the appenders higher in the hierarchy. In other words, appenders are inherited additively from the logger hierarchy. For example, if a console appender is added to the root logger, then all enabled logging requests will at least print on the console. If in addition a file appender is added to a logger, say C, then enabled logging requests for C and C's children will print on a file and on the console. It is possible to override this default behavior so that appender accumulation is no longer additive by setting the additivity flag to false.

The Messaging Engine failed to retrieve the configuration from the database. Details:"c0002a1f".

Hi All,
We have two BizTalk nodes, from both nodes we are getting this error from today morning, nothings has changed from application end.
Error : The Messaging Engine failed to retrieve the configuration from the database. Details:"c0002a1f".
Warning : Cannot perform encryption or decryption because the secret is not available from the master secret server. See the event log for related errors.
Can you please suggest step where need to check.
I don't have any knowledge where the master secret file saved during installation.
Regards
Suman

Most of the time, master secret server is not backup frequency. Mostly its is done during the time when the servers have been setup. If anything changed between the time the master secret has been backed up and now, then you don't have the correct version
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You have one option now, try restoring with the file what you have (4 years old). If the backed version is not the correct version, then only option is to reconfigure the BizTalk.
MSDN: How to Restore the Master Secret
You cannot backup the master secret file now as ii could have been corrupted. That the reason we're suggesting to restore the corrupted master secret file. For your future reference, following the steps as suggested in this article to take backup of master
secret.
MSDN: How to Back Up the Master Secret
If this answers your question please mark it accordingly. If this post is helpful, please vote as helpful by clicking the upward arrow mark next to my reply.

Log4j.configuration

Hello,
I am trying to bring out the log4j logs generated by enterprise application that I deployed. The log4j logs that I want to display are different from the system logs. The Servers -> Admin Server-> Logging defines a log file. This is system log. The application logs are the ones generated by the application I have deployed. I have a log4j.properties that contains the logfile name, location and other details. I would not prefer to drop the log4j.properties inside the weblogic directory because it is not a good practice.
I shall list down the attempts I had made. But, all of them did not yield results.
I tried to use from this link http://ananthkannan.blogspot.in/2009/09/how-to-configure-log4j-in-weblogic.html . That was not useful because I can't copy the log4j.properties inside weblogic directory and am not permitted to confuse the application & system logs.
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-DSTP_CONFIG_PATH=C:/TEMP/install_websphere11565/STPConfig/STPSpringConfig.xml -Dlog4j.configuration=C:/TEMP/install_websphere11565/STPConfig/log4j.properties
Both the above attempts did not generate the log file.
May I request you where to tell weblogic to please use the log4j.configuration and what else to do.
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Raj

Hi people,
I have got it working.
Servers -> Your Server-> SeverStart -> Arguments
-Dlog4j.configuration=file:C:/TEMP/install_websphere11565/STPConfig/log4j.properties
What made the difference was I had to prefix 'file' for the log4j.properties location. I don't know its significance because springConfig is located without 'file', but it worked.
Regards,
Raj

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I'm using Log4J in my application..
I configure the log4j, as follows;
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The .properties is in the root when I jar my source. I use Ant to Jar the file. It all works good when I run the jar file from ant.
The problem is when I run the jar file by double clicking on it, I get an error
" Could not read configuration file [properties/logging.properties]."
I tried the following options;
PropertyConfigurator.configure("/logging.properties");
PropertyConfigurator.configure("./logging.properties");
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log4j:ERROR Could not read configuration file [logging.properties].
log4j:ERROR Could not read configuration file [./logging.properties].
log4j:ERROR Could not read configuration file [../logging.properties].
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Keep your properties file inside the root folder of your application.It is working fine

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where can I find a guide on log4j?
I need to configure the logger, in a configuration file.
I've done it by a init servlet and a configuration file,but tomcat write this message
log4j:WARN No appenders could be found for logger (org.apache.commons.digester.Digester).
log4j:WARN Please initialize the log4j system properly.
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package fromBegin.controller;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.PropertyConfigurator;
public class StartUpServlet extends HttpServlet
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String prefix = getServletContext().getRealPath("/");
String file = getInitParameter("log4j-init-file");
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if(file != null) {
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<servlet-class>fromBegin.controller.StartUpServlet</servlet-class>
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<param-value>WEB-INF/log4j.lcf</param-value>
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<load-on-startup>1</load-on-startup>
</servlet>
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# file di configurazione per la registrazione dei log
# mediante log4j
log4j.rootLogger=DEBUG, R
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=C:\\Documents and Settings\\Romeo\\Desktop\\Raccolta log\\log4j-track.log
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finally,
anybody knows a online guide for log4j?
why tomcat give me that warning message?
thanks

The error message is coming because some other classes that use log4j debugging can't find your properties file.
In this case the org.apache.commons.digester.Digester.
It knows nothing about your personal log4j file for your app - you passed that in as a servlet ini parameter.
That will set up log4j to work for your code, but probably not for others.
Quick and dirty fix: put another log4j.properties file in your web-inf/classes directory. This will be found by all other applications wanting to use log4j. You can then set their logging levels in this file, seperate from your own.
Re online log4j documentation- http://logging.apache.org/log4j/docs/documentation.html
You most probably found that already though :-)
Good luck,
evnafets

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Christer

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I think it's better to ask this question in the log4j mailing list.
Meanwhile you may want to think about changing your
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Regards,
Slava Imeshev
"Christer Brinchmann" <[email protected]> wrote in message
news:[email protected]..
I am wondering: Is there a way to reload the log4jproperties/configuration
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Retrieve Log4j Configuration

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