mysql + grafana監控

 

1、首先需要增加授權

CREATE USER 'exporter'@'localhost' IDENTIFIED BY 'XXXXXXXX' WITH MAX_USER_CONNECTIONS 3;

GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'exporter'@'localhost';

flush privileges;

 

2、安裝mysqld_exporter

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

tar xzvf  mysqld_exporter-0.12.1.linux-amd64.tar.gz

mv mysqld_exporter-0.12.1.linux-amd64.tar.gz  mysqld_exporter

 

3、啟動

 cat start.sh

export DATA_SOURCE_NAME='root:autodgpmysql@(localhost:3306)/'

./mysqld_exporter --web.listen-address=0.0.0.0:8089 --config.my-cnf /etc/my.cnf

 

監控指標：

https://github.com/prometheus/mysqld_exporter

collect.slave_status

Collect from SHOW SLAVE STATUS (Enabled by default)

collect.slave_hosts

Collect from SHOW SLAVE HOSTS

--collect.slave_status \

 --collect.slave_hosts \

 

4、配置prometheus.yml

  - job_name: 'mysqld'

    static_configs:

    - targets: ['localhost:8089’]

http://localhost:8089/metrics

 

設置報警規則

https://github.com/prometheus/mysqld_exporter/blob/master/example.rules

groups:

- name: GaleraAlerts

  rules:

  - alert: MySQLReplicationNotRunning

    expr: mysql_slave_status_slave_io_running == 0 or mysql_slave_status_slave_sql_running

      == 0

    for: 2m

    labels:

      severity: critical

    annotations:

      description: Slave replication (IO or SQL) has been down for more than 2 minutes.

      summary: Slave replication is not running

 

Grafana服務

http://monitor_host:3000訪問Grafana網頁界面（缺省的帳號/密碼為admin/admin）

然后我們到Data Sources頁面添加數據源

 

Granfana 導入Mysql 監控圖表

推薦圖標ID： https://grafana.com/dashboards/7362

監控展示