Thanks,
It worked!
> So, are you trying to see your program's debug or from Hadoop ?
>
I am printing some values from my Mapper.
> Date: Tue, 23 Nov 2010 18:26:28 -0800
> From: c...@apache.org
> To: common-user@hadoop.apache.org
> Subject: Re: How to debug (log4j.properties),
>
> Line like this
> log4j.logger.org.apache.hadoop=DEBUG
>
> works for 0.20.* and for 0.21+. Therefore it should work for all others :)
>
> So, are you trying to see your program's debug or from Hadoop ?
>
> --
> Cos
>
> On Tue, Nov 23, 2010 at 05:59PM, Tali K wrote:
> >
> >
> >
> >
> > I am trying to debug my map/reduce (Hadoop) app with help of the logging.
> > When I do grep -r in $HADOOP_HOME/logs/*
> >
> > There is no line with debug info found.
> > I need your help. What am I doing wrong?
> > Thanks in advance,
> > Tali
> >
> > In my class I put :
> > ________________________________________________________________________________
> > import org.apache.commons.logging.Log;
> > import org.apache.commons.logging.LogFactory;
> >
> >
> > LOG.warn("======");
> > System.out.println("====");
> > _________________________________________________________________________________
> >
> >
> > Here is my Log4j.properties:
> >
> > log4j.rootLogger=WARN, stdout, logfile
> >
> > log4j.appender.stdout=org.apache.log4j.ConsoleAppender
> > log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
> > log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n
> >
> > log4j.appender.logfile=org.apache.log4j.RollingFileAppender
> > log4j.appender.logfile.File=app-debug.log
> >
> >
> > #log4j.appender.logfile.MaxFileSize=512KB
> > # Keep three backup files.
> > log4j.appender.logfile.MaxBackupIndex=3
> > # Pattern to output: date priority [category] - message
> > log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
> > log4j.appender.logfile.layout.ConversionPattern=MYLINE %d %p [%c] - %m%n
> > log4j.logger.org.apache.hadoop.mapred.TaskTracker=DEBUG
> >
> >
