title: Cassandra In-Memory option
body: <p>There is an In-Memory option introduced in the Cassandra by DataStax Enterprise 4.0:
  <a href="http://www.datastax.com/documentation/datastax_enterprise/4.0/datastax_enterprise/inMemory.html" rel="nofollow">http://www.datastax.com/documentation/datastax_enterprise/4.0/datastax_enterprise/inMemory.html</a>
  But with 1GB size limited for an in-memory table.</p>
  
  <p>Anyone know the consideration why limited it as 1GB? And possible extend to a large size of in-memory table, such as 64GB?</p>