NT Event Viewer dll question

["Koes, Derrick" <De...@Smith-Nephew.com>]

I'm using log4j in my web app.  I'm also using the dll that allows logging
to the NT Event Viewer application log.

However, I cannot use the manager servlet to undeploy and redeploy an
updated version of my web app because of a stack trace produced that states
that the dll is already loaded.

Is there any way to configure log4j/tomcat to check for this?

 

Thanks,

Derrick

 

Re: NT Event Viewer dll question

[Christopher Taylor <cs...@java-internals.com>]

There are two ways to fix this:

- Move your log4j classes into the Tomcat context (and not within your own
server context).  Not very portable (you couldn't just drop 'n run the WAR
file)
- Change the static initializer in the
org.apache.log4j.nt.NTEventLogAppender in the following way:

static
{
try
{
    System.loadLibrary ( "NTEventLogAppender" );
}
catch ( UnsatisfiedLinkError error )
{
    // throw this one
    throw error;
}
catch ( Exception oops )
{
    // ignore this one
}
}

Can you tell me what exception you're getting in the stack trace?

-Chris

----- Original Message -----
From: "Koes, Derrick" <De...@Smith-Nephew.com>
To: <to...@jakarta.apache.org>
Cc: <lo...@jakarta.apache.org>
Sent: Wednesday, July 10, 2002 6:28 AM
Subject: NT Event Viewer dll question


> I'm using log4j in my web app.  I'm also using the dll that allows logging
> to the NT Event Viewer application log.
>
> However, I cannot use the manager servlet to undeploy and redeploy an
> updated version of my web app because of a stack trace produced that
states
> that the dll is already loaded.
>
> Is there any way to configure log4j/tomcat to check for this?
>
>
>
> Thanks,
>
> Derrick
>
>
>
>


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Re: NT Event Viewer dll question

[Jacob Kjome <ho...@visi.com>]

I have the same issue with Tomcat without the whole dll thing.  I can use 
the manager to install my app and then use it to remove the app.  Every 
library is released except for log4j.jar so I can't do a clean build.  I 
can work around it, but it is very annoying.  only after I do a full 
shutdown of Tomcat is the log4j.jar in my webapp released.

If anyone knows a solution to this, please post it to the list.

Jake

At 10:28 PM 7/9/2002 +0100, you wrote:
>I'm using log4j in my web app.  I'm also using the dll that allows logging
>to the NT Event Viewer application log.
>
>However, I cannot use the manager servlet to undeploy and redeploy an
>updated version of my web app because of a stack trace produced that states
>that the dll is already loaded.
>
>Is there any way to configure log4j/tomcat to check for this?
>
>
>
>Thanks,
>
>Derrick
>
>