title: Couldn't connect to host, Elasticsearch down?
body: <p>I recenetly installed elasticsearch bundle and i configured it like in the documentation:
  fos_elastica.yml</p>
  
  <pre><code>fos_elastica:
  clients:
      default: { host: localhost, port: 9200 }
  indexes:
      Leimen:
          client: default
          types:
              Article:
                  mappings:
                      id:
                          type: integer
                      date: ~
                      title: ~
                      author: ~
                      content: ~
                      email: ~
                  persistence:
                      driver: orm
                      model: Leimen\SiteBundle\Entity\Article
                      finder: ~
                      provider: ~
                      listener: ~
  </code></pre>
  
  <p>when i run <code>fos:elastica:populate</code>
  I got this error<code>
  [Elastica\Exception\Connection\HttpException]
  Couldn't connect to host, Elasticsearch down?
  </code>
  Anyone can help me please?</p>