meta2 => {
  datacenters => [ dc1, dc2, dc3 ]
  dcmap => {
    dc1 => 192.0.2.134 # failed service_types=down inherit
    dc2 => [ 192.0.2.134, 192.0.2.135 ] # failed service_types=down inherit
    dc3 => %metafo!meta1 # self-reference and up
  }
}
