public boolean isBalancerRan() {
    return balancerRan;
  }
Returns true if the balancer ran, otherwise false. The balancer may not run for a variety of
reasons, such as: another balance is running, there are regions in transition, the cluster is
in maintenance mode, etc.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/BalanceResponse.java