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配置prometheus监控mysql服务

环境：已经装好mysql的centos7系统

• 添加用于监控的mysql账号

grant replication client，process on *.*  to 'mysql_monitor'@'localhost' identified by '123456';
grant select on *.* to 'mysql_monitor'@'localhost';
exit;

下载mysqld_exporter

wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.13.0/mysqld_exporter-0.13.0.linux-amd64.tar.gz
tar zxvf mysqld_exporter-0.13.0.linux-amd64.tar.gz -C /usr/local/
mv mysqld_exporter-0.13.0.linux-amd64 mysqld_exporter
vim /usr/local/mysqld_exporter/.my.cnf
[client]
user=mysql_monitor
password=123456

• 创建运行账户

useradd -m -s /sbin/nologin prometheus

• 编辑systemctl配置文件

vim /etc/systemd/system/mysqld_exporter.service
[Unit]
Description=mysqld_exporter
After=network.target
[Service]
Type=simple
User=prometheus
ExecStart=/usr/local/mysqld_exporter/mysqld_exporter --config.my-cnf="/usr/local/mysqld_exporter/.my.cnf"
Restart=on-failure
[Install]
WantedBy=multi-user.target

重载systemctl

systemctl daemon-reload

启动mysqld_exporter

systemctl enable --now mysqld_exporter

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