ubuntu安装elasticsearch

以下操作在root用户下进行

1. 下载安装包 cd /home/elasticsearch && wget https://mirrors.huaweicloud.com/elasticsearch/7.6.2/elasticsearch-7.6.2-linux-x86_64.tar.gz
2. 解压tar -zxvf elasticsearch-7.6.2-linux-x86_64.tar.gz
3. config/elasticsearch.yml配置文件中添加

xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true

4. 添加用户adduser elasticsearch
5. 给安装文件夹授权chown -R elasticsearch /home/elasticsearch
6. 给elasticsearch用户操作文件夹权限chown -R elasticsearch:elasticsearch /home/elasticsearch
7. 更改内存权限sysctl -w vm.max_map_count=262144
8. 切换到elasticsearch用户su elasticsearch
9. 后台启动elasticsearch，./bin/elasticsearch -d
10. 添加密码，./bin/elasticsearch-setup-passwords interactive