PolarDB for MySQL provides the diagnostics feature that integrates some features of Database Autonomy Service (DAS). You can use the Performance Insight feature to rapidly evaluate database loads and identify the root causes of performance issues. This helps you improve the database stability.
Prerequisites
The service edition of your PolarDB for MySQL clusters is Cluster or Archive Database. This feature is unavailable for Single Node. For more information about service editions, see Overview.
Background
The Performance Insight feature supports the following data sources:
- If performance_schema is enabled for the desired instances, the Performance Insight feature directly collects and analyzes the data stored in performance_schema.
- If performance_schema is disabled for the desired instances, the Performance Insight feature collects and analyzes the data of active sessions.