title: NoSQL big data which project to use for CDR storing?
body: <p>I am working in a large telecom company and i wish to store many CDR (Call Detail Records). It should be a huge database. I wish to try to push some OpenSource solution. I am very familiar with MySQL, but i thought maybe to try something different that should be robust and easy to scale. Any recommendation on a stable OpenSource NoSQL solution? - MongoDB? Hadoop? Cassandra? Any other idea? Maybe i should stick to MySQL?</p>
  
  <p>Please note that i will need the option to query like, how many minutes a specific phone number was talking.</p>
  
  <p>What is the most called number.</p>
  
  <p>Etc'.</p>
  
  <p>A mysql table would look like this:</p>
  
  <pre><code>   timestamp   TIMESTAMP
     from_number CHAR(12)
     to_number   CHAR(12)
     duration    MEDIUMINT
  </code></pre>