Russell J. Nile created LOG4J2-470:
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Summary: Resolution of ${hostName} in log4j2.xml file only works
after first reference
Key: LOG4J2-470
URL: https://issues.apache.org/jira/browse/LOG4J2-470
Project: Log4j 2
Issue Type: Bug
Components: Configurators
Affects Versions: 2.0-beta9
Environment: Windows 7, JDK 1.7, Eclipse 4.2
Reporter: Russell J. Nile
Priority: Minor
I am using ${hostName} to include the hostname in the log file. When I use it
it resolves to "${hostName}" the first time it is referred to in the log and
then the proper hostname after that.
Example configuration (comment out the "Properties" section to duplicate):
<?xml version="1.0" encoding="UTF-8"?>
<Configuration monitorInterval="60" name="SMSLog4JConfiguration"> <!-- add
this to spit out debug about configuration: 'status="debug"' -->
<!-- This seems to be a bug, but the $hostName seems to need to be
referenced
once before it can be used. Maybe it gets correct in a future
log4j2 release -->
<Properties>
<Property name="theHostName">${hostName}</Property>
</Properties>
<Appenders>
<RollingFile name="RollingFileAppender"
fileName="/applicationlogs/CTMSApplicationService-${hostName}.log"
filePattern="/applicationlogs/${hostName}-%d{MM-dd-yyyy}-%i.log">
<Policies>
<OnStartupTriggeringPolicy />
<TimeBasedTriggeringPolicy interval="24"
modulate="true" />
</Policies>
<PatternLayout pattern="[%d{ISO8601}] [%t] %-5level
%logger{6} - %msg%n" />
</RollingFile>
</Appenders>
<Loggers>
<!-- default for "includeLocation" is false, but I want to be
clear -->
<Root level="debug" includeLocation="false">
<AppenderRef ref="RollingFileAppender" />
</Root>
</Loggers>
</Configuration>
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