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From "Remko Popma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LOG4J2-747) Servlet Example of using different log4j2-{env:envValue}.xml
Date Wed, 13 Aug 2014 11:25:13 GMT

    [ https://issues.apache.org/jira/browse/LOG4J2-747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14095369#comment-14095369

Remko Popma commented on LOG4J2-747:

I'm very glad to hear that!

Before we close this issue, can you help us improve log4j by pointing out any places where
the documentation can be improved? Anything that would have helped you resolve this issue
sooner will be useful I think. 

If there are multiple pages please mention the page and section you want to improve. Text
we can copy & paste into the documentation would be ideal. 

Much appreciated!

> Servlet Example of using different log4j2-{env:envValue}.xml
> ------------------------------------------------------------
>                 Key: LOG4J2-747
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-747
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Configurators
>    Affects Versions: 2.0-beta9
>         Environment: Websphere 8.5 Windows 7 
>            Reporter: A B
>         Attachments: LOG4J2-747_Jira.war, LOG4J2747_Jira_Sample3.ear, log4j2 location.jpg,
> Based on my previous post / question on the log4j2 user list - Defining different log4j2.xml
configurations based on environment - http://apache-logging.6191.n7.nabble.com/Defining-different-log4j2-xml-configurations-based-on-environment-tp40639p40662.html
- I was attempting to create a  Servlet Example of using different log4j2-\{env:envValue\}.xml.
> Based on the answers in this thread "Defining different log4j2.xml configurations based
on environment", from log4j user list I tried to test using a different config for different
environments. This is what I have done.
> * I defined a Windows env variable {{websphere_environment}} and set its value to "local"
> * I specify the config location as log4j2-\{env:envValue\}.xml. My web.xml context-param
looks like below - servlet version is 3.0.
> {code}
> <context-param>
>     <param-name>log4jConfigLocation</param-name>
>     <param-value>/WEB-INF/config/log4j2-${env:websphere_environment}.xml
>     </param-value>
> </context-param>
> {code}
> My relevant servlet method looks like below
> {code}
> protected void doGet(HttpServletRequest request, HttpServletResponse response) throws
>     ServletException, IOException {
>     Logger logger = Logger.getLogger(ServletLog4j2Test.class.getName());
>     logger.fatal("Loaded:);
>     //    " + /WEB-INF/config/log4j2-${env:websphere_environment}.xml
> }
> {code}
> I do not have the lo4j2-local.xml defined in the WEB-INF/config ( it is defined as log4j-local.xml,
not log4j2-local.xml and was expecting to get an error but it seems that the servlet is using
a default configuration, because when I run the servlet, I get
> {code}
> "07/24/14 07:14:07:564:FATAL:WebContainer : 0:        :     :com.test.log4j2.ServletLog4j2Test:
> {code}
> How should my web-app and config files be set-up so that I can use different configs
for different environments based on the environment?

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