{
  "_nodes" : {
    "total" : 3,
    "successful" : 3,
    "failed" : 0
  },
  "cluster_name" : "weixinhost",
  "nodes" : {
    "6f0Kvy9VQf6pUdKpGc55_w" : {
      "timestamp" : 1535441875213,
      "name" : "node-2",
      "transport_address" : "172.31.100.174:9300",
      "host" : "172.31.100.174",
      "ip" : "172.31.100.174:9300",
      "roles" : [
        "master",
        "data",
        "ingest"
      ],
      "attributes" : {
        "ml.machine_memory" : "16026021888",
        "hdsize" : "300Gb",
        "xpack.installed" : "true",
        "az" : "cn-north-1a",
        "vmsize" : "r4.large",
        "ml.max_open_jobs" : "20",
        "ml.enabled" : "true"
      },
      "indices" : {
        "query_cache" : {
          "memory_size_in_bytes" : 0,
          "total_count" : 0,
          "hit_count" : 0,
          "miss_count" : 0,
          "cache_size" : 0,
          "cache_count" : 0,
          "evictions" : 0
        }
      }
    },
    ...
}

cluster.name:XXX
node.name: node-1
path.data: /elasticsearch/data
path.logs: /elasticsearch/log
network.host: 0.0.0.0
http.port: 9200
discovery.zen.ping.unicast.hosts: [.............]
discovery.zen.minimum_master_nodes: 2
bootstrap.memory_lock: true

{
  "INDEX" : {
    "settings" : {
      "index" : {
        "refresh_interval" : "10s",
        "number_of_shards" : "9",
        "provided_name" : "follower-v2",
        "creation_date" : "1535191750932",
        "requests" : {
          "cache" : {
            "enable" : "true"
          }
        },
        "unassigned" : {
          "node_left" : {
            "delayed_timeout" : "5m"
          }
        },
        "number_of_replicas" : "0",
        "queries" : {
          "cache" : {
            "enabled" : "true"
          }
        },
        "uuid" : "CeBrVgGRQ42NA4QlgQNiLA",
        "version" : {
          "created" : "6030299"
        }
      }
    }
  }
}