docs: @Override
      public void start()
      {
          try {
              m_leaderCache = new LeaderCache(m_zk, "MpTerm-iv2masters", VoltZK.iv2masters, m_leadersChangeHandler);
              m_leaderCache.start(true);
          }
          catch (ExecutionException ee) {
              VoltDB.crashLocalVoltDB("Unable to create babysitter starting term.", true, ee);
          } catch (InterruptedException e) {
              VoltDB.crashLocalVoltDB("Unable to create babysitter starting term.", true, e);
          }
      }