I’ve looked high and low and there is nothing but vague references and
comments, most of them stale.
I have an EAR with two EJB modules and a WAR module.
The log4j and slf4j jars are in the EAR’s /lib folder. Each module has a
log4j2.xml/.dtd pair in the META-INF folder, except the WAR where it is in
WEB-INF/classes. The WAR project also has log4j-web.jar in its /lib folder.
Deploying on Wildfly 21. The loggers defined in the WAR’s log4j2.xml file are
created because the files are created. The ones from the EJB modules are not.
I even went to the point of creating a @Startup/@Singleton class in each of the
EJB modules that does this:
ConfigurationBuilder<BuiltConfiguration> configBuilder =
ConfigurationBuilderFactory.newConfigurationBuilder();
InputStream inputStream =
Thread.currentThread().getContextClassLoader().getResourceAsStream("META-INF/log4j2.xml");
ConfigurationSource configurationSource = new ConfigurationSource(inputStream);
configBuilder.setConfigurationSource(configurationSource);
loggerContext = Configurator.initialize(configBuilder.build());
loggerContext.initialize();
loggerContext.start();
I can step through the code and it all works. The XML file is read just fine
(can send the stream to a string and it is correct).
No exception is thrown (from either of the other two modules); but the files
are not being opened and nothing written.
Each of the 3 xml files have the same at the top, but only the WAR instance is
recognized:
<properties>
<!-- when using file logger -->
<property name="maxDays">90</property>
<property name="maxFileSize">20 MB</property>
<property name="logBaseDir">/logs/app_name</property>
<property name="patternStr">%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level %l -
%msg%n</property>
</properties>
<Appenders>
<Console
name="STDOUT"
target="SYSTEM_OUT"
>
<PatternLayout pattern="${patternStr}" />
</Console>
<RollingFile
name=“APP_NAME_DB"
fileName="${logBaseDir}/${hostName}_app_name_db.log"
filePattern="${logBaseDir}/rotated/${hostName}_app_name_db.%d{yyyy-MM-dd}-%i.log.gz"
>
<PatternLayout pattern="${patternStr}" />
<Policies>
<OnStartupTriggeringPolicy />
<SizeBasedTriggeringPolicy size="${maxFileSize}" />
<TimeBasedTriggeringPolicy />
</Policies>
<DefaultRolloverStrategy max="${maxDays}" />
</RollingFile>
