单点部署

下载

官网：https://www.elastic.co/

历史版本：https://www.elastic.co/cn/downloads/past-releases#elasticsearch

curl -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.5-x86_64.rpm

安装

rpm -ivh elasticsearch-7.17.5-x86_64.rpm

# 修改配置项
vim /etc/elasticsearch/elasticsearch.yml
# grep -Ev "^[[:space:]]*#|^$" /etc/elasticsearch/elasticsearch.yml
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: 192.168.1.25
discovery.seed_hosts: ["192.168.1.25"]
cluster.initial_master_nodes: ["192.168.1.25"]

启动

# systemctl daemon-reload
systemctl enable --now elasticsearch

说明

9200 与 9300 端口的用途：

9200 用来提供http/https服务

9300 用于集群内部进行数据通信（TCP）

重置集群（清空集群）：

systemctl stop elasticsearch

rm -rf /var/lib/elasticsearch/* /var/log/elasticsearch/* /tmp/*