ubuntu16.04 安装elasticsearch

wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
sudo apt-get install apt-transport-https
echo "deb https://artifacts.elastic.co/packages/6.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-6.x.list
sudo apt-get update && sudo apt-get install elasticsearch

配置
sudo nano /etc/elasticsearch/elasticsearch.yml
在最下面添加

network.host: 0.0.0.0 
discovery.seed_hosts: ["0.0.0.0"]
cluster.name: myCluster1 
node.name: "myNode1"

将 Elasticsearch 配置为在系统启动时自动启动
sudo /bin/systemctl enable elasticsearch.service

启动停止
sudo systemctl start elasticsearch.service 
sudo systemctl stop elasticsearch.service

测试
curl -X GET "http://localhost:9200/?pretty"

{
  "name" : "myNode1",
  "cluster_name" : "myCluster1",
  "cluster_uuid" : "_na_",
  "version" : {
    "number" : "7.10.1",
    "build_flavor" : "default",
    "build_type" : "deb",
    "build_hash" : "1c34507e66d7db1211f66f3513706fdf548736aa",
    "build_date" : "2020-12-05T01:00:33.671820Z",
    "build_snapshot" : false,
    "lucene_version" : "8.7.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}