title: How to work with Mahout?
body: <p>I have tried to work with mahout using the link:
  <a href="http://girlincomputerscience.blogspot.in/2010/11/apache-mahout.html" rel="nofollow">http://girlincomputerscience.blogspot.in/2010/11/apache-mahout.html</a></p>
  
  <p>When i execute the command </p>
  
  <p><code>anand@ubuntu:~/Downloads/mahout-distribution-0.9$ bin/mahout recommenditembased --input mydata.dat --usersFile user.dat --numRecommendations 2 --output output/ --similarityClassname SIMILARITY_PEARSON_CORRELATION</code></p>
  
  <p>it shows:</p>
  
  <p><code>hadoop binary is not in PATH,HADOOP_HOME/bin,HADOOP_PREFIX/bin, running locally
  Error occurred during initialization of VM
  Could not reserve enough space for object heap
  Could not create the Java virtual machine.
  </code></p>
  
  <p>What may be the possible reasons for the errors?</p>