title: How to export data from Cassandra to mongodb?
body: <p>I am using Apache (Kafka-Storm-Cassandra) for real time processing.The problem I am facing is that I can't use aggregation queries on Cassandra directly(Datastax can be used but it is a paid service).Moreover, I also considered using mongodb but It is not good for more and frequent writes. So, I am thinking to do all my calculation in storm and store it into Cassandra and move it on hourly basis or so to mongodb to perform my further analytics. </p>
  
  <p>Is this the right approach or are there any better options to achieve this ?</p>
  
  <pre><code>Also, How can I export data directly from Cassandra to mongodb prefebly using JAVA?
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  <p>Thanks In Advance !!</p>