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I'm trying to switch from using FileAppender to the RollingFileAppender using log4j2 (happens both with beta3 and beta4 jars).
I have it configured as:
<RollingFile name="RollingFile" fileName="${logdir}/${filename}"
filePattern="${logdir}/app-%d{yyyy-MM-dd-hh-mm-ss}_%i.log" >
<PatternLayout>
<pattern>%d %p %C{1.} [%t] %m%n</pattern>
</PatternLayout>
<Policies>
<OnStartupTriggeringPolicy/>
</Policies>
<DefaultRolloverStrategy max="20"/>
</RollingFile>
...
<loggers>
<root level="ERROR">
<appender-ref ref="RollingFile"/>
<appender-ref ref="STDOUT"/>
</root>
...
and in the code, I'm trying to get the logger this way:
Logger logger = LogManager.getLogger(this.getClass());
but I'm getting this exception when I run it:
2013-02-01 17:56:54,773 ERROR Unable to invoke method createAppender in class org.apache.logging.log4j.core.appender.RollingFileAppender for element RollingFile java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.logging.log4j.core.config.BaseConfiguration.createPluginObject(BaseConfiguration.java:723)
at org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:489)
at org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:481)
at org.apache.logging.log4j.core.config.BaseConfiguration.doConfigure(BaseConfiguration.java:162)
at org.apache.logging.log4j.core.config.BaseConfiguration.start(BaseConfiguration.java:120)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:271)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:287)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:139)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:76)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:31)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:342)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:301)
...
Caused by: java.lang.ClassCastException: org.apache.logging.log4j.core.appender.FileManager cannot be cast to org.apache.logging.log4j.core.appender.rolling.RollingFileManager
at org.apache.logging.log4j.core.appender.rolling.RollingFileManager.getFileManager(RollingFileManager.java:73)
at org.apache.logging.log4j.core.appender.RollingFileAppender.createAppender(RollingFileAppender.java:140)
... 18 more
It looks as if the config file is being read and the appender is trying to get created but not sure what I'm doing wrong.
I've tried cutting and pasting other people's RollingFileAppender configuration w/o any modification but I still get the above error.
Thanks.
952
RollingFileAppender extends FileAppender to backup the log files when they reach a certain size. The log4j extras companion includes alternatives which should be considered for new deployments and which are discussed in the documentation for org. apache. log4j. rolling.
The FileNamePattern property defines the name pattern for rolled over files. In given example, it rename the rollover log files with date-month in log file name. For example, pattern {yyyy-MM-dd-HH} rollover log file every hour. The . gz file extension is used so that log4j compresses the log file automatically.
Enumeration appenders = logger. getAllAppenders(); . . . fileBackupIndex = rollingFileAppender. getMaxBackupIndex();
Default Rollover Strategy. The default rollover strategy accepts both a date/time pattern and an integer from the filePattern attribute specified on the RollingFileAppender itself. If the date/time pattern is present it will be replaced with the current date and time values.
In my case configuration file contain File appender with RollingFile appender.
Error was in
fileNameparameter - it have same value in both appenders.
139
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