title: UUID Cassandra
body: <p>I am new to Cassandra. I am trying to insert some values to the columnfamily. The definition of columnfamily in the config file is as follows.</p>
  
  <pre><code>&lt;ColumnFamily Name="CommandQueue"
                      ColumnType="Super"
                      CompareWith="TimeUUIDType"
                      CompareSubcolumnsWith="UTF8Type"/&gt;
  </code></pre>
  
  <p>When ever I try to insert values to I always get   "InvalidRequestException(why: UUIDs must be exactly 16 bytes)".</p>
  
  <p>I am using batch_mutate() to insert column.</p>
  
  <p>How can I insert values to the column family.</p>