title: Where are external /jar files on Hadoop stored?
body: <p>Lets say I write a WordCount example, and then in the eclipse project include an external jar file such as MyJar.jar. Now if I export the whole WordCount project as a word.jar file, and then type</p>
  
  <pre><code>$&gt; hadoop jar word.jar WordCount input output
  </code></pre>
  
  <p>I understand that the job executes and the word.jar will have a lib directory that contains MyJar.jar file. Now, where on the HDFS will this jar file MyJar file be stored when the job is running that makes calls to methods of this jar file?</p>