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Alerts
Dashboards
Exporters
Metrics

mysql_global_variables_open_files_limit Gauge

Description Generic gauge metric from SHOW GLOBAL VARIABLES.

Source

MySQL server exporter

Alerts

MySQL too many open files

Dashboards

MySQL Overview
MySQL Exporter Quickstart and Dashboard
Galera/MariaDB - Overview
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MySQL Overview
MySQL Overview
MySQL/MariaDB Workload
MySQL Exporter
mysql overview