prometheus+grafana 监控单节点Mysql

需求：可视化更好点的Mysql监控   1.下载 mysql exporter 和mysql展示模版     // 下载地址：https://github.com/prometheus/mysqld_exporter/releases# ls     mysqld_exporter-0.11.0.linux-amd64.tar.gz     mysqld_exporter-0.11.0.linux

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