Enabling Oozie console on Cloudera VM 4.4.0 and executing examples

I am trying to learn about Apache Oozie, so i wanted to figure out how to use it in Cloudera 4.4.0 VM. When you go to the Oozie web console it shows a message saying that the Console is disabled. In order to enable the console i had to follow these steps

1. Go to your Cloudera Manager, in that i went to the oozie configuration screen and i did check the Enable Oozie Server Web Console screen like this. As you can see in the description it says install ExtJS2.2 in /usr/lib/oozie/libext
   
2. Next i did go to /usr/lib/oozie/libext directory and executed following command to download the ext-2.2.zip.

   
   wget 'http://extjs.com/deploy/ext-2.2.zip'
   

   Since i am using CDH 4.4 i had to execute unzip ext-2.2.zip to unzip the ext-2.2.zip
3. Last step was to restart the oozie service and now i could see the Oozie web console

Executing oozie examples After the Oozie console was enabled i wanted to execute oozie example to test out my installation so i followed these steps

1. First thing for me was to find the oozie-examples.tar.gz file on my vm

   
   find / -name oozie-examples.tar.gz
   

   I found it under /usr/share/doc/oozie-3.3.2+92/ directory. So i did untar it using tar xvf oozie-examples.tar.gz
2. Then i had to make change in the job.properties to change value of namenode and jobTracker from localhost to localhost.localdomain get rid of Error: E0901 : E0901: Namenode [localhost:8020] not allowed, not in Oozies whitelist error.

   
   nameNode=hdfs://localhost.localdomain:8020
   jobTracker=localhost.localdomain:8021
   queueName=default
   examplesRoot=examples
   
   oozie.wf.application.path=${nameNode}/user/${user.name}/${examplesRoot}/apps/map-reduce
   outputDir=map-reduce
   

3. After making changes in job.properties i did upload the examples folder to HDFS using following command

   
   hdfs dfs -put examples examples
   

4. The last step in the process was to actually run the mapreduce job in oozie by executing following command

   
   oozie job -oozie http://localhost:11000/oozie -config examples/apps/map-reduce/job.properties -run
   

5. Once the job was started i could see the progress using Oozie web console like this