Elasticsearch最简安装
- 数据库
- 2022-07-21
- 40热度
- 0评论
产品支持矩阵
https://www.elastic.co/cn/support/matrix
下载地址
https://www.elastic.co/cn/downloads/elasticsearch
安装配置
修改Linux配置
cat >> /etc/security/limits.conf
ulimit -n 65536
````
```shell
cat >> /etc/sysctl.conf
sysctl -p
二进制安装
下载
mkdir -p /work/programs/elasticsearch
cd /work/programs/elasticsearch
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.2.3-linux-x86_64.tar.gz
tar xvf elasticsearch-8.2.3-linux-x86_64.tar.gz
es8.x 有内置 OpenJDK,如需切换 Oraclejdk,需要参考上面的支持矩阵进行版本选择,官方说用自定义jdk启动会清理掉自带的 OpenJDK
修改配置
vi config/elasticsearch.yml
network.host: 0.0.0.0
:实现内网可访问
启动
使用非root
用户启动,需要给用户授予 es
目录的权限
[docker@docker-base ~]$ cd /work/programs/elasticsearch/elasticsearch-8.2.3/
[docker@docker-base elasticsearch-8.2.3]$ ./bin/elasticsearch
> 启动时间比较长,要稍等会儿
> 也可以在命令后面加 -d ,表示后台运行
- 自动创建了 elastic 用户并配置了密码,可以通过其提示命令进行修改
- HTTP CA 证书信息
- kibana 连接集群需要配置的 token 信息
- 其他节点加入集群需要配置的 token 信息
- 通过 docker 方式启动节点需要配置的 token 信息
首次启动后,访问 http://localhost:9200 无法访问,报错如下:
[root@docker-base ~]# curl -v localhost:9200
* About to connect() to localhost port 9200 (#0)
* Trying ::1...
* Connected to localhost (::1) port 9200 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: localhost:9200
> Accept: */*
>
* Empty reply from server
* Connection #0 to host localhost left intact
curl: (52) Empty reply from server
是因为自动进行了一些安全配置,在 conf/elasticsearch.yml 文件最下面:
将 'true' 均调整为 'false'
再次启动
测试访问
访问成功
[docker@docker-base elasticsearch]$ curl -v localhost:9200
* About to connect() to localhost port 9200 (#0)
* Trying ::1...
* Connected to localhost (::1) port 9200 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: localhost:9200
> Accept: */*
>
安装插件
安装 ik 分词器
下载
选择和你 ES 一样版本的插件
https://github.com/medcl/elasticsearch-analysis-ik/releases
[docker@docker-base ~]$ cd /work/programs/elasticsearch/
[docker@docker-base elasticsearch]$ wget https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v8.2.3/elasticsearch-analysis-ik-8.2.3.zip
[docker@docker-base elasticsearch]$ unzip elasticsearch-analysis-ik-8.2.3.zip -d elasticsearch-8.2.3/plugins/ik/
重启ES
测试
[docker@docker-base elasticsearch]$ curl -X POST http://localhost:9200/_analyze -H 'content-type: application/json' -d '{
"analyzer": "ik_max_word",
"text": "百事可乐"
}'
{"tokens":[{"token":"百事可乐","start_offset":0,"end_offset":4,"type":"CN_WORD","position":0},{"token":"百事","start_offset":0,"end_offset":2,"type":"CN_WORD","position":1},{"token":"百","start_offset":0,"end_offset":1,"type":"TYPE_CNUM","position":2},{"token":"事","start_offset":1,"end_offset":2,"type":"CN_CHAR","position":3},{"token":"可乐","start_offset":2,"end_offset":4,"type":"CN_WORD","position":4}]}