Can Cassandra populate the partitions evenly?
 I'm using YCSB with Cassandra0.6.6.  I've tried YCSB to generate data and then load it into the cassandra cluster twice with approximately 1.2million records each. The results are displayed  in the screenshots below.
since YCSB generate random strings,so is it the issue of Cassandra?
 Thanks for your time!
  best regards.