Where are you looking for the logs? They will be available in Tasklogs. You can view them from web ui from taskdetails.jsp page.
-Amareshwari On 4/27/10 2:22 PM, "Alexander Semenov" <bohtva...@gmail.com> wrote: Hi all. I'm not sure if I'm posting to correct mail list, please, suggest the correct one if so. I need to log statements from the running job, e.g. use Apache commons logging to print debug messages on map and reduce operations. I've tuned the conf/log4.properties file for my logging domain but log statements are still missing in the log files and on the console. I start the job like this: hadoop jar jar_file.jar input_dir output_dir The job finishes gracefully but I see no logging. Any suggestions? Thanks.