docs: private void leaderElection() {
          loggingLog.info("Starting leader election for snapshot truncation daemon");
          try {
              while (true) {
                  Stat stat = m_zk.exists(VoltZK.snapshot_truncation_master, new Watcher() {
                      @Override
                      public void process(WatchedEvent event) {
                          switch(event.getType()) {
                          case NodeDeleted:
                              loggingLog.info("Detected the snapshot truncation leader's ephemeral node deletion");
                              m_es.execute(new Runnable() {
                                  @Override
                                  public void run() {
                                      leaderElection();
                                  }
                              });
                              break;
                              default:
                                  break;
                          }
                      }
                  });
                  if (stat == null) {
                      try {
                          m_zk.create(VoltZK.snapshot_truncation_master, null, Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL);
                          m_isAutoSnapshotLeader = true;
                          if (m_lastKnownSchedule != null) {
                              makeActivePrivate(m_lastKnownSchedule);
                          }
                          electedTruncationLeader();
                          return;
                      } catch (NodeExistsException e) {
                      }
                  } else {
                      loggingLog.info("Leader election concluded, a leader already exists");
                      break;
                  }
              }
          } catch (Exception e) {
              VoltDB.crashLocalVoltDB("Exception in snapshot daemon electing master via ZK", true, e);
          }
      }