• 安装 elasticsearch

• yum安装elasticsearch

# 信任源公钥
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

# 添加yum源

cat >  /etc/yum.repos.d/elasticsearch.repo  <<EOF
[elasticsearch-7.x]
name=Elasticsearch repository for 7.x packages
baseurl=https://mirrors.tuna.tsinghua.edu.cn/elasticstack/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md
EOF

# 生成源缓存
 sudo yum makecache fast

# 安装 elasticsearch
sudo yum update && sudo yum install elasticsearch

• 手动安装rpm包

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.4.2-x86_64.rpm
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.4.2-x86_64.rpm.sha512
shasum -a 512  -c elasticsearch-7.4.2-x86_64.rpm.sha512
sudo rpm --install elasticsearch-7.4.2-x86_64.rpm

• 设置 elasticsearch 开机自动启动

如何启动和停止Elasticsearch取决于你的系统是使用SysV init还是systemd(较新的发行版使用)。你可以通过运行这个命令来判断哪个正在被使用:

ps -p 1

• SysV init 模式下设置

# 开机自动启动
sudo chkconfig --add elasticsearch
# 启动
sudo -i service elasticsearch start
# 停止
sudo -i service elasticsearch stop

• systemd 模式下设置

# 开机自动启动
sudo systemctl daemon-reload
sudo systemctl enable elasticsearch
# 启动
sudo systemctl start elasticsearch
# 停止
sudo systemctl stop elasticsearch

• 检查es运行是否正常

curl -X GET "localhost:9200/?pretty"