From: Mark Thomas
Sent: Thursday, July 28, 2016 15:32
To: Tomcat Users List
Subject: Re: Tomcat 8.5.4 and Log4j2
On 28/07/2016 20:09, Chen Levy wrote:
> Hello all
>
> I’ve been using Tomcat 8.0.X with Log4j2, both for Tomcat logging and for my
> applicative logs, for a long time now.
> It was done using the following jars:
> extras/tomcat-juli.jar
> extras/tomcat-juli-adapters.jar jars
>
> I’m in the process of upgrading to Tomcat 8.5.4 and according to
> https://bz.apache.org/bugzilla/show_bug.cgi?id=58588 these jars are no longer
> distributed.
>
> I followed the instructions in
> http://logging.apache.org/log4j/2.0/log4j-jul/index.html and performed the
> following:
> 1. Added -Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager
> to the java command
> 2. Added log4j-jul-2.6.2.jar to the classpath
>
> Other than adding these through setenv.bat, I did not modify anything with
> the distribution (apache-tomcat-8.5.4-windows-x64.zip)
>
> Now, when invoking startup.bat, Tomcat starts and exits immediately, without
> any console or log output
use:
catalina.bat run
to start and report the error message.
Mark
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Thanks for the hint Mark
There was a ClassNotFoundException where log4j-juli required log4j-api in the
classpath, then log4-core and finally disruptor.jar
So I moved these jars from Tomcat’s /lib folder, where I used to place them in
v8.0, to /bin folder, next to tomcat-juli.jar; and added them all to the
classpath.
I’m no sure if that is the right way, but it’s working. I’m pasting the content
of my setenv.bat for those who may encounter this issue in the future (I’m
using a setenv.sh file as well if anyone is interested):
rem Set the classpath for Log4j2
set
"CLASSPATH=%CLASSPATH%;%CATALINA_HOME%\bin\log4j-jul-2.6.2.jar;%CATALINA_HOME%\bin\log4j-api-2.6.2.jar;%CATALINA_HOME%\bin\log4j-core-2.6.2.jar;%CATALINA_HOME%\bin\disruptor-3.3.4.jar"
rem Log4j2 configuration
set CATALINA_OPTS=%CATALINA_OPTS%
-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager
-Dlog4j.configurationFile=file://%CATALINA_HOME%\conf\log4j2.xml
Please let me know if there’s another, better way to do it
Thanks
Chen
