下载网址：
https://github.com/prometheus/mysqld_exporter/releases/download/v0.10.0/mysqld_exporter-0.10.0.linux-amd64.tar.gz

tar zxfv mysqld_exporter-0.10.0.linux-amd64.tar.gz -C /home

mv /home/mysqld_exporter-0.10.0.linux-amd64 /home/mysqld_exporter

mysql -u root -p‘xxxx‘

grant replication client,process on . to ‘prom‘@‘localhost‘ identified by ‘xxxx‘;
grant select on performance_schma.* to ‘prom‘@‘localhost‘;
exit

vi /home/mysqld_exporter/.my.cnf

[client]
user=prom
password=xxxx

:wq

/home/mysqld_exporter/mysqld_exporter -config.my-cnf=/home/mysqld_exporter/.my.cnf

netstat -nplt | grep 9104

prometheus端：

vi /home/prometheus/prometheus.yml

• targets: [‘xxxx:9104‘]

:wq

grafana面板：

显示mysql是否up（up为1）：

mysql_up{instance=~"db1:9104"}

显示mysql的uptime时间：

mysql_global_status_uptime{instance=~"db1:9104"}

显示mysql的连接数：
mysql_global_status_threads_connected{instance=~"db1:9104"}

显示正在运行的进程数：
mysql_global_status_threads_running{instance=~"db1:9104"}

显示等待写入的个数：
mysql_global_status_innodb_data_pending_writes{instance=~"imanage-db1:9104"}

mysqld_exporter监控mysql

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