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

错误原因，配置文件中没有配置tcp端口号。

 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