【安装与配置】

下载

curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.2.0-linux-x86_64.tar.gz
解压

tar -xvf elasticsearch-7.2.0-linux-x86_64.tar.gz
后续所有操作都在 elasticsearch-7.2.0 目录里面进行

cd ./elasticsearch-7.2.0/
编辑 ./config/elasticsearch.yml

添加或修改

node.name: node-1
network.host: 0.0.0.0
http.port: 9200
cluster.initial_master_nodes: ["node-1"]
修改系统配置，编辑 /etc/sysctl.conf

添加或修改

sudo sysctl -p 使修改生效

vm.max_map_count = 262144
修改 ECS 安全组，放行 9200 端口

启动 elasticsearch

./bin/elasticsearch
浏览器访问 http://112.74.外.外:9200/，可以看到如下内容

{
"name" : "node-1",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "npPY-fmfRwqJKLKA30ym3Q",
"version" : {
"number" : "7.2.0",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "508c38a",
"build_date" : "2019-06-20T15:54:18.811730Z",
"build_snapshot" : false,
"lucene_version" : "8.0.0",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}

【插件】

查看已安装哪些插件

./bin/elasticsearch-plugin list
安装 analysis-icu 插件

./bin/elasticsearch-plugin install analysis-icu
重启 elasticsearch，访问 http://112.74.外.外:9200/_cat/plugins，可以看到如下内容

node-1 analysis-icu 7.2.0