Dear All, I find in the file conf/log4j.properties,it specifies three appenders : ConsoleAppender DailyRollingFileAppender and TaskLogAppender.I know from the output location that JobClient output target is ConsoleAppender,that JobTracker TaskTracker NameNode and DataNode output target are all DailyRollingFileAppender and TaskLogAppender is the target of everytask`s output no matter map task or reduce task. But the problem is that in that configuration file it only points log4j.rootLogger = INFO,console. Other two appenders does not have corresponding logger,so how does the relationship between DailyRollingFileAppender and JobTracker for example establish? Where can I find it? In source code,script file or configuration file? Because I want to add some logs in my program with log4j.
Thanks Very Much!
