docs: public long[][] getRemoteSites() {
          int localhost = VoltDB.instance().getHostMessenger().getHostId();
          long[][] retval = new long[m_allHostsImmutable.size() - 1][];
          int i = 0;
          for (int host : m_allHostsImmutable) {
              if (host != localhost) {
                  retval[i++] = longListToArray(m_hostsToSitesImmutable.get(host));
              }
          }
          return retval;
      }