Sherif, For 2.x, use via your Job's configuration, the properties "mapreduce.map.log.level" and "mapreduce.reduce.log.level" (valid values are TRACE/DEBUG/INFO/WARN/ERROR/FATAL) to switch the Child JVM's task logging levels.
On Wed, Jun 27, 2012 at 5:53 PM, Sherif Akoush <sherif.ako...@gmail.com> wrote: > Hi, > > I have been trying to setup up Hadoop logging at the task level but > with no success so far. I have modified log4j.properties and set many > parameters to DEBUG level > (log4j.logger.org.apache.hadoop.mapred.Task=DEBUG > log4j.logger.org.apache.hadoop.mapred.MapTask=DEBUG > log4j.logger.org.apache.hadoop.mapred.ReduceTask=DEBUG > > and log4j.logger.org.apache.hadoop = DEBUG ) > > but I cant see any LOG.info or LOG.debug messages from the tasks being > recorded. This is with yarn being enabled. > > I am not sure what I have missed in the configurations to make it work > properly. I think I should eventually get these messages in the > nodemanager.out log file? > > Thanks in advance, > > Sherif -- Harsh J
