安装elasticsearch插件

• Install elasticsearch-head:
  – for Elasticsearch 2.x:
  sudo elasticsearch/bin/plugin install mobz/elasticsearch-head
  – for Elasticsearch 1.x:
  sudo elasticsearch/bin/plugin -install mobz/elasticsearch-head/1.x
  – for Elasticsearch 0.9:
  sudo elasticsearch/bin/plugin -install mobz/elasticsearch-head/0.9

• open http://localhost:9200/_plugin/head/