Try adding the log4j.properties file to he distributed cache, e.g.:

hadoop jar job.jar -config conf -files conf/log4j.properties my.package.Class 
arg1

-Joey



On Feb 29, 2012, at 16:15, GUOJUN Zhu <guojun_...@freddiemac.com> wrote:

> 
> What I found out is that the default conf/log4j.properties set root with INFO 
> and indeed anything beyond INFO (hadoop's or my own codes') show up.  
> However, I tried to put a new log4j.properties with lower threshold in the 
> new conf directory and specify it with "--configure" option and it did not 
> work (it did pick up other things such as mapreq-site.xml).  Unfortunately, I 
> am not the administrator and do not have the priviledge to modify the default 
> log4j.properties.  Do I have to ask the administrator to do it for me?  
> Thanks. 
> 
> Zhu, Guojun
> Modeling Sr Graduate
> 571-3824370
> guojun_...@freddiemac.com
> Financial Engineering
> Freddie Mac 
> 
> 
>    GUOJUN Zhu <guojun_...@freddiemac.com>
>    02/27/2012 11:34 AM
> 
>    Please respond to
> mapreduce-user@hadoop.apache.org
> 
> To
> "mapreduce-user@hadoop.apache.org" <mapreduce-user@hadoop.apache.org>
> cc
> Subject
> no log function for map/red in a cluster setup
> 
> 
> 
> 
> 
> 
> Hi.   
> 
> We are testing hadoop.  We are using hadoop (0.20.2-cdh3u3).  I am using the 
> cotomized conf directory with -"-config mypath".  I modified the 
> log4j.properties file in this path, adding 
> "log4j.logger.com.mycompany=DEBUG".   It works fine with our 
> pseudo-one-node-cluster setup (1.00).  But in the new cluster (with 32 data 
> nodes/name node/secondary namenode/jobtracker/backup jobtracker), I can only 
> see the log from hadoop (in the web interface, when I navigate all the way 
> into the task node log), but no logs from my mapper/reducer 
> (com.mycompany.***) show up.  I can do System.out.println or 
> System.err.println and see them in the same log file,  but no logs from log4j 
> show up.  Is there any other configuration I missed?  Thanks. 
> 
> Zhu, Guojun
> Modeling Sr Graduate
> 571-3824370
> guojun_...@freddiemac.com
> Financial Engineering
> Freddie Mac 

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