log4j

[lmestre]

Hi,
I have a problem with log4j. I have several applications that use
log4j (different properties files).
The problem is that all of them writes in the same file which belongs
to the last application that started in the app server. Any Ideas?,

Thanks,

 

[Oliver Wong]

Hi,
I have a problem with log4j. I have several applications that use
log4j (different properties files).
The problem is that all of them writes in the same file which belongs
to the last application that started in the app server. Any Ideas?,

Do these "several applications" have a single entry point?

- Oliver

 

[lmestre]

No, they have a differet one (different ears)



Oliver Wong ha escrito:

 

[Lasse Reichstein Nielsen]

Oliver Wong ha escrito: ....
No, they have a differet one (different ears)

Is log4j included in each ear file, or is it somehow installed
globally on the application server (perhaps as an extension for
the JVM)?
I.e., are all the applications using the same loaded class for
log4j?

/L

 

[lmestre]

the same class

 

[Oliver Wong]

the same class

Write filters and appenders so that each appender writes to a different
file and the filters give the appenders only the log events they are
interested in.

- Oliver

 

[lmestre]

Do i need to create my own class, for example
com.myorg.mypackage.MyClass
which extends for example org.apache.log4j.FileAppender? and the same
for the filter?
Is that correct?

Thanks,

Luz

Oliver Wong ha escrito:

 

[Oliver Wong]

Do i need to create my own class, for example
com.myorg.mypackage.MyClass
which extends for example org.apache.log4j.FileAppender? and the same
for the filter?
Is that correct?

Yes, that is the basic strategy I proposed. However, note this passage
from the Javadocs:

http://logging.apache.org/log4j/docs/api/org/apache/log4j/spi/Filter.html
<quote>
Note that Category and AppenderSkeleton, the parent class of all standard
appenders, have built-in filtering rules. It is suggested that you first use
and understand the built-in rules before rushing to write your own custom
filters.
</quote>

- Oliver

 

[lmestre]

Thanks a lot!

Luz

Oliver Wong ha escrito:

Yes, that is the basic strategy I proposed. However, note this passage
from the Javadocs:

http://logging.apache.org/log4j/docs/api/org/apache/log4j/spi/Filter.html
<quote>
Note that Category and AppenderSkeleton, the parent class of all standard
appenders, have built-in filtering rules. It is suggested that you first use
and understand the built-in rules before rushing to write your own custom
filters.
</quote>

- Oliver

 

[Raymond DeCampo]

Is log4j included in each ear file, or is it somehow installed
globally on the application server (perhaps as an extension for
the JVM)?
I.e., are all the applications using the same loaded class for
log4j?

/L

Have you tried placing a copy of log4j,jar and configuration files in
each EAR?

HTH,
Ray

 

[lmestre]

It didn't work. I did the proposed solution and i still have the
problem because every application extends the same appender :
FileAppender



Luz

 

[lmestre]

Have you done that?
I think that is the right solution... but I need to put other jars too
and change the server policies of the class loader .

Luz