title: Rebalancing executors in Apache Storm
body: <p>I am trying to rebalance the number of executors for a bolt in a running Apache Storm (0.9.5) topology. When I execute the command to the Nimbus node <code>./storm rebalance MyTopology -n 2 -e GreenBolt=4</code> it accepts the command line input but the number of executors is not changed when I view in the Storm UI.</p>
  
  <p>Is there a limitation that I'm not aware of like a rebalance can not increase the total number of executors and only move them from one bolt to another?</p>