centos8 安装ElasticSearch

centos8 安装ElasticSearch

准备工作：

由于ElasticSearch 是java开发的所以需要安装Java的开发环境

安装jdk

sudo yum search java-11

sudo yum install java-11-openjdk.x86_64 -y

安装 ElasticSearch 7.8

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.8.0-x86_64.rpm
rpm -ivh elasticsearch-7.8.0-x86_64.rpm

这样就安装成功了

设置开机启动

systemctl daemon-reload      # 重新加载systemd程序的配置文件
systemctl enable elasticsearch.service     # 设置开机自启动
systemctl start elasticsearch.service      # 启动服务

访问curl -XGET http://localhost:9200

[root@zhufanyu ~]# curl -XGET http://localhost:9200
{
  "name" : "zhufanyu",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "afsn8pUNT4ephGnrWadBMA",
  "version" : {
    "number" : "7.8.0",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "757314695644ea9a1dc2fecd26d1a43856725e65",
    "build_date" : "2020-06-14T19:35:50.234439Z",
    "build_snapshot" : false,
    "lucene_version" : "8.5.1",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

配合ES

进入ES配置文件的目录 /etc/elasticsearch

elasticsearch.yml 是es的配置文件，jvm.options是jvm的配置文件

node.name: node-1
cluster.initial_master_nodes: ["node-1"]

取消上面的注释, 保存退出

重启ES

systemctl restart elasticsearch.service

开启远程访问连接

修改elasticsearch.yml 配置文件

network.host: 0.0.0.0
http.port: 9200

重启ES

防火墙开放9200端口，云服务器安全组规则里开放9200端口

访问ES