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Runtime changes to log4j.properties

 
Jaikiran Pai
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Hi,
We have an application packaged as a ear file. This ear file contains a log4j.properties file meant for our application. Is there any way that the changes to log4j.properties, when the application is running, be picked up. Is this possible in Websphere? I would like the changes to be picked up without having to redeploy the application or restart the server.

Thanks in advance.
 
Jeanne Boyarsky
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Jaikiran,
You definitely don't need to redeploy. I think you do need to restart the application though. If you are using clones, you can restart one clone at a time.
 
Jaikiran Pai
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Thanks, Jeanne Boyarsky, for that answer.
 
Arshad Sharief
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To pick up the changes from log4j.properties file without restarting or redeploying the app, use

PropertyConfigurator.configureAndWatch(log4j.properties);

in your init() method.It will look for any changes in properties file, for every 60 sec(default), you can also change the timings.

Arshad.
 
It is sorta covered in the JavaRanch Style Guide.
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