title: hadoop log4j not working
body: <p>My jobs are running successfully with Hadoop 2.6.0 but the logger is not working at all</p>
  
  <p>I always see</p>
  
  <pre><code>log4j:WARN No appenders could be found for logger (org.apache.hadoop.mapreduce.v2.app.MRAppMaster).
  log4j:WARN Please initialize the log4j system properly.
  log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
  </code></pre>
  
  <p>yarn-site.xml has the directory with the log4j.properties file listed. I also tried passing it manually via <code>-Dlog4j.configuration</code> option. </p>
  
  <p>the file is here: <a href="http://www.pastebin.ca/2966941" rel="nofollow noreferrer">http://www.pastebin.ca/2966941</a></p>