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From Ankit Agarwal <ankit_agar...@yahoo.com.INVALID>
Subject Using Log4J2 2.8 (via the 1.2 API Bridge) for Tomcat8 Internal Logging - RollingFileAppender does not (cannot?) create new Log File
Date Mon, 10 Apr 2017 19:23:39 GMT
Hi,

I’m using Log4J2 (2.8) via the 1.2 API Bridge for Tomcat 8 internal logging.

I followed the instructions here: https://tomcat.apache.org/tomcat-8.0-doc/logging.html#Using_Log4j
<https://tomcat.apache.org/tomcat-8.0-doc/logging.html#Using_Log4j>
- With the exception that I also copied the Bridge JAR into the Tomcat8 lib directory

I have configured Log4J2 with this XML file

<?xml version="1.0" encoding="utf-8"?>
<Configuration status="info">
     <Properties>
          <Property name="logDirectory">${sys:catalina.base}/logs</Property>
          <Property name="systemName">CMS</Property>
          <Property name="componentName">Tomcat</Property>
          <Property name="serverIpAddress">${env:PUBLIC_IP_ADDRESS}</Property>
          <!-- <Property name="layout">%d [%t] %-5p %c- %m%n</Property> -->
          <Property name="layout">%d{DATE} "%d{ISO8601}" "${systemName}" "${componentName}"
"%X{clientIpAddress}" "%X{clientTcpPort}" "%X{username}" "%X{sessionId}" "%X{sessionAuthenticationId}"
"%X{sessionAuthenticationToken}" "${serverIpAddress}" "%T" "%t" "%X{apiName}" "%X{apiSystemActionType}"
"%X{apiSystemItemType}" "%x" "%l" "%p" "%m"%n%n</Property>
     </Properties>
     <Appenders>
          <Console name="CONSOLE" target="SYSTEM_OUT">
               <PatternLayout pattern="${layout}"/>
          </Console>
          <RollingFile name="CATALINA" fileName="${logDirectory}/catalina.log" filePattern="${logDirectory}/catalina-%i.log.gz">
               <PatternLayout pattern="${layout}"/>
               <Policies>
                    <SizeBasedTriggeringPolicy size=“100 MB" />
               </Policies>
               <DefaultRolloverStrategy max="20" />
          </RollingFile>
          <RollingFile name="LOCALHOST" fileName="${logDirectory}/localhost.log" filePattern="${logDirectory}/localhost-%i.log.gz">
               <PatternLayout pattern="${layout}"/>
               <Policies>
                    <SizeBasedTriggeringPolicy size="100 MB"/>
               </Policies>
               <DefaultRolloverStrategy max="20" />
          </RollingFile>
          <RollingFile name="MANAGER" fileName="${logDirectory}/manager.log" filePattern="${logDirectory}/manager-%i.log.gz">
               <PatternLayout pattern="${layout}"/>
               <Policies>
                    <SizeBasedTriggeringPolicy size="100 MB"/>
               </Policies>
               <DefaultRolloverStrategy max="20" />
          </RollingFile>
          <RollingFile name="HOST-MANAGER" fileName="${logDirectory}/host-manager.log"
filePattern="${logDirectory}/host-manager-%i.log.gz">
               <PatternLayout pattern="${layout}"/>
               <Policies>
                    <SizeBasedTriggeringPolicy size="100 MB"/>
               </Policies>
               <DefaultRolloverStrategy max="20" />
          </RollingFile>
     </Appenders>
     <Loggers>
          <Root level="info">
               <AppenderRef ref="CATALINA"/>
          </Root>
          <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="HOST-MANAGER"/>
          </Logger>
     </Loggers>
</Configuration>


All 4 RollingFile Appenders are configured identically (except for the log filename).

The problem I’m running into is that when the SizeBasedTriggeringPolicy is executed, the
current log file is zipped. However, a new log file is not created.

As a result, the Tomcat8 stops logging.

If I restart Tomcat8, then a new file is created and the Tomcat8 functions normally, but only
until this new log file reaches its limit and is zipped up. Then once again, the problem repeats
itself.

Does the 1.2 API Bridge / Tomcat 8 not support the SizeBasedTriggeringPolicy?

Do I have any options other than restarting the Tomcat8? Will the TimeBasedTriggeringPolicy
work and is that my only option?

Since the Log4J2 being used in Tomcat8 has no problem creating the required files on restart,
I don’t think its a permissions issue.

I’d appreciate any thoughts and pointers.

Thanks,
Ankit


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