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MySQL Database: Maximum connection usage since startup

Distribution: official part of Check_MK
License: GPL
Supported Agents: Linux

This check allows the tracking of connection usage for a MySQL database. Therefore it queries the maximum number of connections that have been in use simultaneously since the server started and the maximum number of possible parallel connections. From these both it calculates the maximum usage level of these connections in percent and matches the specified WARN and CRIT thresholds against it.

This check needs the agent plugin mk_mysql to be installed. Further details about this plugin and monitoring of MySQL can be found in the Check_MK online documentation in the article "Monitoring MySQL with Check_MK".

Discovery

On each host where the agent plugin mk_mysql is being installed and the MySQL daemon is running one service per instance is being generated.