How to enable slow logging of self-built database in Dbbrain

To enable slow logging for a self-built database in Dbbrain, you typically need to configure the database settings to capture slow queries and then integrate these logs with Dbbrain for analysis. Here’s how you can do it:

1. Configure Database for Slow Query Logging:

   • MySQL: Modify the my.cnf or my.ini configuration file to include settings like slow_query_log = 1, slow_query_log_file = /path/to/slow-query.log, and long_query_time = X (where X is the time in seconds that a query must take to be considered slow).
   • PostgreSQL: Adjust the postgresql.conf file to set log_min_duration_statement = X (where X is the duration in milliseconds that a statement must take to be logged).

2. Integrate Logs with Dbbrain:

   • Ensure that the slow query logs are accessible by Dbbrain. This might involve setting up file permissions or network access if the logs are on a different server.
   • In Dbbrain, navigate to the database instance you want to monitor and enable the slow log analysis feature. This usually involves specifying the path to the slow query log file and setting any necessary parsing options.

3. Example:

   • For a MySQL database, you might set long_query_time = 2 to log any query that takes longer than 2 seconds. After restarting MySQL, all slow queries will be logged in the specified file.
   • In Dbbrain, you would then configure the slow log analysis to use this file, allowing Dbbrain to parse and analyze the logs for performance insights.

If you are using cloud services, consider leveraging Tencent Cloud’s Database Management Center (DBMC) for enhanced database monitoring and management capabilities. DBMC can integrate with Dbbrain to provide a comprehensive view of your database performance and health.