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The Datadog MySQL integration can collect metrics from custom queries.


Follow the configuration details in the MySQL conf.yaml file. Additional items of consideration are below.

Qualify your database

When adding a custom query to the MySQL conf.yaml, each table referenced must have the database qualified. This is done by prepending the table with its database name in the following format:

SELECT * FROM database_name.table_name WHERE...

If you omit the database name, the Agent fails to run the query with the error: No database selected.

Name your metric

The names applied to your query metrics are taken as provided (there are no prepends). For example, your metric name could be: myapp.custom_query.test.

Collection frequency

By default your metrics are collected by the MySQL check every 15-20 seconds. To query these metrics at a different frequency, reduce the frequency of the entire MySQL check (this affects the frequency of your general mysql.* metrics), or run a custom scheduled CRON script to submit metrics with the API or DogStatsD.

Number of custom queries

Running a large number of custom queries from the MySQL check can delay other Agent checks. If you need to collect metrics from a large number of custom MySQL queries, run a custom scheduled CRON script to submit metrics with the API or DogStatsD.


You have a database named tester with the table test_table that contains the following data:

col_1 | col_2 | col_3
1     | a     | a
2     | b     | b
3     | c     | c

Adding the following custom query to your MySQL conf.yaml collects the metric myapp.custom_query.test.b with a value of 2.

      - query: SELECT col_1 FROM tester.test_table WHERE col_2 = 'b'
        - name: myapp.custom_query.test.b
          type: gauge
        - tester:mysql

Further Reading

Documentation, liens et articles supplémentaires utiles: