[source, ruby]
----
response = client.search(
  index: 'my-index-000001,cluster_one:my-index-000001,cluster_two:my-index-000001',
  body: {
    query: {
      match: {
        'user.id' => 'kimchy'
      }
    },
    _source: [
      'user.id',
      'message',
      'http.response.status_code'
    ]
  }
)
puts response
----
