1. Why is there MapReduce process in Sqoop to load data from HDFS to MySQL?

2. How can I enable/disable key in MySQL using Sqoop/Oozie?

3. How to run multiple Oozie jobs in parallel?

4. How to run Oozie jobs in Cron?

<fork name = 'sampleFork'>
   <path start = 'sampleAction1'/>
   <path start = 'sampleAction2'/>
</fork>

<action name = 'sampleAction`>
  ..
  ..
  ..
  <ok to = 'joinActions'/>
  <error to = 'fail'/>
</action>

<join name = 'joinActions' to 'seqAction3'/>