node_exporter、mysql_exporter、redis_exporter使用

• node_exporter，监听在指定端口

nohup ./node_exporter --web.listen-address=":9200" &> /dev/null &

• redis_exporter，监听指定的redis地址、端口、密码

nohup ./redis_exporter -redis.addr "redis://192.168.244.133:6379" -redis.password "123456" -web.listen-address :9300 &> /dev/null &

• mysql_exporter,请参见配置

  1. 安装mysqld_exporter

  wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.12.1/mysqld_exporter-0.12.1.darwin-amd64.tar.gz
  tar -zxvf mysqld_exporter-0.12.1.linux-amd64.tar.gz
  mv mysqld_exporter-0.12.1.linux-amd64 mysqld_exporter
  

  2. 进入mysql创建exporter用户并授权

  CREATE USER 'exporter'@'%' IDENTIFIED BY '123456' WITH MAX_USER_CONNECTIONS 3;
  GRANT ALL PRIVILEGES ON *.* TO 'exporter'@'%' IDENTIFIED BY '123456';
  flush privileges;
  

  3. 在和mysqld_exporter文件同级的文件夹中创建my.cnf文件，文件内容如下
  • vim my.cnf

  [client]
  user=exporter
  password=123456
  

  4. 创建mysqld_exporter启动脚本vim /usr/lib/systemd/system/mysqld_exporter.service

  [Unit]
  Description=mysqld_exporter
  Documentation=https://prometheus.io
  Wants=network-online.target
  After=network.target
  [Service]
  Type=simple
  User=root
  ExecStart=/datadrive/software/mysqld_exporter/mysqld_exporter --config.my-cnf=/datadrive/software/mysqld_exporter/my.cnf
  Restart=on-failure
  [Install]
  WantedBy=multi-user.target
  

  (根据实际目录位置改变其中的ExecStart选项内容)

  5. 相关命令

  systemctl daemon-reload
  systemctl start mysqld_exporter
  systemctl stop mysqld_exporter
  systemctl status mysqld_exporter
  

  6. 测试

  curl localhost:9104/metrics
  

  mysql_exporter

• 附prometheus相关下载地址

  1. prometheus、node_exporter、mysqld_exporter下载地址
  2. redis_exporter下载地址

• 结合grafana、prometheus使用，相关仪表板id获取如下：
  node_exporter:1860、mysql_exporter:7362、redis_exporter:12776

• 将redis_exporter加入系统服务