![]() Previewīy flipping the preview switch at the top of the editor, you can get a preview of the SQL query generated by the query builder. The group by clause can be removed by pressing the X button. You can then choose which column to group the results by. To group the results by column, flip the group switch at the top of the editor. To add more columns to filter on use the plus button. Using the first dropdown, select if all the filters need to match (AND) or if only one of the filters needs to match (OR). To add a filter, flip the switch at the top of the editor. You can also specify an optional aggregation function.Īdd further value columns by clicking the plus button and another column dropdown appears. Using the dropdown, select a column to include in the data. Columns and Aggregation functions (SELECT) Note: If a default database has been configured through the Data Source Configuration page (or through a provisioning configuration file), the user will only be able to use that single preconfigured database for querying. When the dataset is selected, the table dropdown is populated with the tables that are available. The dropdown is be populated with the databases that the user has access to. In the dataset dropdown, choose the MySQL database to query. For example, the name table-name will be quoted with backticks - `table-name`. Note: If your table or database name contains a reserved word or a prohibited character the editor will put quotes around the name. To protect against this we Highly recommend you create a specific mysql user with restricted permissions. For example, statements like USE otherdb and DROP TABLE user would beĮxecuted. The queryĬould include any SQL statement. Grafana does not validate that the query is safe. The specified database and tables you want to query. The database user you specify when you add the data source should only be granted SELECT permissions on You can also override this setting in a dashboard panel under its data source options. We recommend setting this value to match your MySQL write frequency.įor example, use 1m if MySQL writes data every minute. This value must be formatted as a number followed by a valid time identifier: Identifier The Min time interval setting defines a lower limit for the $_interval and $_interval_ms variables. ![]() This should always be lower than configured wait_timeout in MySQL (Grafana v5.4+). The maximum amount of time in seconds a connection may be reused. Possibilities include TLS / SSL, IPsec, or a private network. To avoid password issues, it is recommended that clients connect to a MySQL server using a method that protects the password. Sending passwords in clear text may be a security problem in some configurations. Default is true.Īllows the use of the cleartext client side plugin as required by a specific type of account, such as one defined with the PAM authentication plugin. Toggle to set the maximum number of idle connections to the number of maximum open connections (available in Grafana v9.5.1+). The maximum number of connections in the idle connection pool, default 100 (Grafana v5.4+). The maximum number of open connections to the database, default 100 (Grafana v5.4+). For more information, refer to the MySQL documentation. If you leave this field empty, then the time zone is not updated. Set the value used in the session with SET time_zone='.'. Required if the timezone of the database (or the host of the database) is set to something other than UTC. Specifies the time zone used in the database session, such as Europe/Berlin or +02:00. ![]() The IP address/hostname and optional port of your MySQL instance. This is how you refer to the data source in panels and queries.ĭefault data source means that it will be pre-selected for new panels. Set the data source’s basic configuration options. The Settings tab of the data source is displayed. Under Your connections, click Data sources. To access the data source configuration page: Only users with the organization administrator role can add data sources.Īdministrators can also configure the data source via YAML with Grafana’s provisioning system. Grafana ships with a built-in MySQL data source plugin that allows you to query and visualize data from a MySQL compatible database like MariaDB or Percona Server.įor instructions on how to add a data source to Grafana, refer to the administration documentation. Usage of time_sec will eventually be deprecated. Starting from Grafana v5.1 you can name the time column time in addition to earlier supported time_sec. Grafana Cloud Enterprise Open source MySQL data source
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