log4j doesn't create backup files in web-app, the same code in pure java app works fi

[Ondra Babuljak]

Hi all,

in my application I have a class DummyLogger, which is a superclass to all others. It provides them a log4j Logger.



In the constructor it sets up the important attributes:

log = Logger.getLogger(name+" (" + app + ") ");
log.setLevel(Level.toLevel(level));
 
PatternLayout defaultLayout = new PatternLayout("%p %c,line %L,%d{dd.MM.yyyy/HH:mm:ss},%m%n");
 
RollingFileAppender rollingFileAppender = new RollingFileAppender();
rollingFileAppender.setName(name);
rollingFileAppender.setFile(path+app+".log", true, false, 0);
rollingFileAppender.setMaxFileSize("10MB");
rollingFileAppender.setMaxBackupIndex(5);
rollingFileAppender.setLayout(defaultLayout);
 
log.removeAllAppenders();
log.addAppender(rollingFileAppender);
log.setAdditivity(false);

Formerly I had the application as a pure java app and everything worked fine. Now I've made it a web application (I run it on WebsphereAS 5.0) and it has stopped creating the backup files. However the code remained the same.
Any ideas what has happend?



Thanks a lot,
Ondra

[somkiat puisungnoen]

What do you mean about "backup files" ?

[Ondra Babuljak]

Originally posted by somkiat puisungnoen:
What do you mean about "backup files" ?

When the log file reaches the size specified in .setMaxFileSize(size) it should make a backup of the log file (number of backups is set by .setMaxBackupIndex(backupIndex)) and roll over the log file -> in this case the file app.log should be copied to app.log.1 and further logging should be written to rolled over file app.log

[somkiat puisungnoen]

In my project, I'm just config in log4j.properties BUT not in my code like you. And my program is work fine.


Sometime, you can check permission in target directory for crete log file.