@Override
  public boolean isDestructive() {
    // TODO: we can look at the actions, and decide to do the restore cluster or not based on them.
    return true;
  }
Selects and returns ceil(ratio * items.length) random items from the given array
hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/monkies/PolicyBasedChaosMonkey.java