centos7安装部署ElasticSearch

文章目录

ElasticSearch安装部署
- 简介
- 安装
- 卸载

ElasticSearch安装部署

简介

全文搜索属于最常见的需求，开源的 Elasticsearch （以下简称 es）是目前全文搜索引擎的首选。
它可以快速地储存、搜索和分析海量数据。维基百科、Stack Overflow、Github 都采用它。
Elasticsearch简称es，在企业内同样是一款应用非常广泛的搜索引擎服务。

安装

添加yum仓库

shell 复制代码

# root执行
# 导入仓库密钥
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

# 添加yum源
# 编辑文件 
vim /etc/yum.repos.d/elasticsearch.repo

# 推荐使用
[elasticsearch-7.x]
name=Elasticsearch repository for 7.x packages
baseurl=https://mirrors.tuna.tsinghua.edu.cn/elasticstack/yum/elastic-7.x/
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

# 更新yum缓存
yum makecache

安装es
shell 复制代码
```
yum install -y elasticsearch
```

配置es

shell 复制代码

vim /etc/elasticsearch/elasticsearch.yml
#阅读模式 显示行号
:set nu

# 17行，设置集群名称
cluster.name: my-cluster

# 23行，设置节点名称
node.name: node-1

# 56行，允许外网访问
network.host: 0.0.0.0

# 74行，配置集群master节点
cluster.initial_master_nodes: ["node-1"]

启动es

shell 复制代码

systemctl start | stop | status | enable | disable elasticsearch

关闭防火墙

shell 复制代码

systemctl stop firewalld
systemctl disable firewalld

测试
- 浏览器打开：http://ip:9200/?pretty

bash 复制代码

sudo userdel elasticsearch
sudo groupdel elasticsearch

json 复制代码

{
  "name": "node-1",
  "cluster_name": "my-cluster",
  "cluster_uuid": "yLfUpG4CQ-Wbq6zL-2XqzA",
  "version": {
    "number": "7.17.14",
    "build_flavor": "default",
    "build_type": "rpm",
    "build_hash": "774e3bfa4d52e2834e4d9d8d669d77e4e5c1017f",
    "build_date": "2023-10-05T22:17:33.780167078Z",
    "build_snapshot": false,
    "lucene_version": "8.11.1",
    "minimum_wire_compatibility_version": "6.8.0",
    "minimum_index_compatibility_version": "6.0.0-beta1"
  },
  "tagline": "You Know, for Search"
}

卸载

停止Elasticsearch服务
bash 复制代码
```
sudo systemctl stop elasticsearch
```
卸载Elasticsearch软件包
bash 复制代码
```
sudo yum remove elasticsearch
```
删除Elasticsearch数据目录
- Elasticsearch数据目录默认位于/var/lib/elasticsearch
bash 复制代码
```
sudo rm -rf /var/lib/elasticsearch
```
删除Elasticsearch配置文件
- Elasticsearch配置文件默认位于/etc/elasticsearch
bash 复制代码
```
sudo rm -rf /etc/elasticsearch
```
删除Elasticsearch日志文件
- Elasticsearch日志文件默认位于/var/log/elasticsearch
bash 复制代码
```
sudo rm -rf /var/log/elasticsearch
```