title: Reading Huge MongoDB collection from Spark with help of Worker
body: <p>I want to read a huge MongoDB collection from Spark create an persistent RDD and do further data analysis on it.</p>
  
  <p>Is there any way I can read the data from MongoDB faster.
  Have tried with the approach of MongoDB Java + Casbah</p>
  
  <p>Can I use the worker/slave to read data in parallel from MongoDB and then save it as persistent data and use it.</p>