elasticsearch報錯:None of the configured nodes are available: []

錯誤緣由，配置文件中沒有配置tcp端口號。

 59 network.host: 0.0.0.0
 60 
 61 transport.tcp.port: 9300
 62 
 63 #
 64 # Set a custom port for HTTP:
 65 #
 66 http.port: 9200