I haven’t checked Tomcat 9, but the log4j-appserver module was created to hook
into Tomcat 8.5 and up. I just not sure if Tomcat changed their logging
mechanism yet again.
Ralph
> On Jan 6, 2022, at 2:43 PM, Bruno Melloni <x.lo...@melloni.com> wrote:
>
> A correction, after doing more troubleshooting and using even the
> original log4j2.xml (on the previous install) it seems that the old
> version was logging nothing to the files from Tomcat itself, and was
> displaying everything on the console instead... in whatever mechanism it
> wanted, so only my own apps were logging to the log4j files, with the
> Tomcat output getting lost.
>
> So, the problem remains, it is not clear at all how you configure Tomcat
> 9 to use log4j2 after all, and none of the guides on the internet are
> complete enough to follow verbatim.
>
> On 1/6/2022 11:37 AM, Bruno Melloni wrote:
>> A couple months ago I had no problem configuring Tomcat 9 with java 16 to
>> use log4j2.
>>
>> That time I simply deleted tomcat/conf/*logging.properties*, added to
>> *tomcat/lib* the following files and it worked.
>>
>> * log4j-api-2.*.jar
>> * log4j-core-2.*.jar
>> * log4j-appserver-2.*.jar
>> * log4j2.xml
>>
>> Now I am setting up a new tomcat 9.0.56 with java 17 and log4j 2.17.1,
>> followed the same steps with one difference... I tweaked the log4j2.xml to
>> try to make it cleaner and easier to maintain/adjust.
>>
>> Unfortunately my new setup is failing to log anything at all. The only place
>> where I see something is on the console and it looks like it is not even
>> log4j output as it does not match the pattern I expected. I think I am
>> misunderstanding something about the use of properties in a log4j2.xml file
>> or I have some really dumb typo.
>>
>> I hope someone can give a glance at the following and tell me where I messed
>> up:
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <Configuration status="INFO"> <!-- used for internal log4j2 logging, not
>> related to apps or server -->
>> <Properties>
>> <Property name="appslogdir">D:/work/app-j17t9-C/logs</Property>
>> <Property
>> name="appsarchivedir">D:/work/app-j17t9-C/logs/archive</Property>
>> <Property name="serverlogdir">D:/work/app-j17t9-C/logs/server</Property>
>> <Property
>> name="serverarchivedir">D:/work/app-j17t9-C/logs/server/archive</Property>
>> <Property name="layout">%d %-5p [%C] %m%n</Property>
>> <Property name="rolloversize">10 MB</Property>
>> </Properties>
>> <Appenders>
>> <Console name="CONSOLE" target="SYSTEM_OUT">
>> <PatternLayout pattern="${layout}"/>
>> </Console>
>> <RollingFile name="FILE" fileName="${appslogdir}/apps.txt"
>> filePattern="${appsarchivedir}/$${date:yyyy-MM}/apps-%d{MM-dd-yyyy}-%i.log.gz">
>>
>> <PatternLayout pattern="${layout}">
>> <Policies>
>> <TimeBasedTriggeringPolicy />
>> <SizeBasedTriggeringPolicy size="${rolloversize}"/>
>> </Policies>
>> <DefaultRolloverStrategy max="24"/>
>> </RollingFile>
>> <RollingFile name="EMAIL" fileName="${appslogdir}/email.txt"
>> filePattern="${appsarchivedir}/$${date:yyyy-MM}/email-%d{MM-dd-yyyy}-%i.log.gz">
>> <PatternLayout pattern="${layout}">
>> <Policies>
>> <TimeBasedTriggeringPolicy />
>> <SizeBasedTriggeringPolicy size="${rolloversize}"/>
>> </Policies>
>> <DefaultRolloverStrategy max="24"/>
>> </RollingFile>
>> <!-- TOMCAT server appenders -->
>> <RollingFile name="CATALINA" fileName="${serverlogdir}/catalina.txt"
>> filePattern="${serverarchivedir}/$${date:yyyy-MM}/catalina-%d{MM-dd-yyyy}-%i.log.gz">
>> <PatternLayout pattern="${layout}"/>
>> <Policies>
>> <TimeBasedTriggeringPolicy />
>> <SizeBasedTriggeringPolicy size="${rolloversize}"/>
>> </Policies>
>> <DefaultRolloverStrategy max="24"/>
>> </RollingFile>
>> <RollingFile name="LOCALHOST" fileName="${serverlogdir}/localhost.txt"
>> filePattern="${serverarchivedir}/$${date:yyyy-MM}/localhost-%d{MM-dd-yyyy}-%i.log.gz">
>> <PatternLayout pattern="${layout}"/>
>> <Policies>
>> <TimeBasedTriggeringPolicy />
>> <SizeBasedTriggeringPolicy size="${rolloversize}"/>
>> </Policies>
>> <DefaultRolloverStrategy max="24"/>
>> </RollingFile>
>> <RollingFile name="MANAGER" fileName="${serverlogdir}/manager.txt"
>> filePattern="${serverarchivedir}/$${date:yyyy-MM}/manager-%d{MM-dd-yyyy}-%i.log.gz">
>> <PatternLayout pattern="${layout}"/>
>> <Policies>
>> <TimeBasedTriggeringPolicy />
>> <SizeBasedTriggeringPolicy size="${rolloversize}"/>
>> </Policies>
>> <DefaultRolloverStrategy max="24"/>
>> </RollingFile>
>> <RollingFile name="HOSTMANAGER"
>> fileName="${serverlogdir}/host-manager.txt"
>> filePattern="${serverarchivedir}/$${date:yyyy-MM}/host-manager-%d{MM-dd-yyyy}-%i.log.gz">
>> <PatternLayout pattern="${layout}"/>
>> <Policies>
>> <TimeBasedTriggeringPolicy />
>> <SizeBasedTriggeringPolicy size="${rolloversize}"/>
>> </Policies>
>> <DefaultRolloverStrategy max="24"/>
>> </RollingFile>
>> </Appenders>
>> <Loggers>
>> <Root level="info">
>> <!-- Root level="error" -->
>> <AppenderRef ref="CONSOLE"/>
>> <AppenderRef ref="FILE"/>
>> </Root>
>> <!-- avoid duplicated logs with additivity=false -->
>> <Logger name="net.cndc" level="debug" additivity="false">
>> <AppenderRef ref="CONSOLE"/>
>> <AppenderRef ref="FILE"/>
>> </Logger>
>> <!-- OPEN SOURCE LIBRARY loggers -->
>> <Logger name="org.springframework" level="warn"/>
>> <!-- TOMCAT SERVER loggers -->
>> <Logger
>> name="org.apache.catalina.core.ContainerBase.[Catalina].[localhost]"
>> level="info" additivity="false">
>> <AppenderRef ref="LOCALHOST" />
>> </Logger>
>> <Logger
>> name="org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager]"
>> level="info" additivity="false">
>> <AppenderRef ref="MANAGER" />
>> </Logger>
>> <Logger
>> name="org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager]"
>> level="info" additivity="false">
>> <AppenderRef ref="HOSTMANAGER" />
>> </Logger>
>> <Logger name="org.apache.catalina" level="info" additivity="false"> <!--
>> Might need to tweak this, normally is Root -->
>> <AppenderRef ref="CATALINA" />
>> </Logger>
>> </Loggers>
>> </Configuration>
>>
>
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