Database Autonomy Service (DAS) automatically inspects all connected database instances once a day and generates a health score for each instance. Scores start at 100 and decrease when specific conditions are detected. Use this feature to monitor instance health over time, catch issues before they escalate, and compare health status before and after configuration changes.
To analyze a specific instance or time range on demand, trigger a manual inspection at any time.
Prerequisites
Before you begin, ensure that you have:
A supported database instance type:
ApsaraDB RDS for MySQL
Self-managed MySQL database
PolarDB for MySQL
ApsaraDB MyBase for MySQL
Tair (Redis OSS-compatible)
A database instance connected to DAS and in the Normal Access state. For more information, see Connect a database instance to DAS
Configure inspection and scoring
Choose an inspection mode based on your use case.
| Mode | When to use | How to start |
|---|---|---|
| Automatic inspection | Ongoing daily monitoring of all connected instances | Enable in Settings |
| Manual inspection | On-demand analysis of a specific instance and time range | Click Start Inspection |
Enable automatic inspection
Log on to the DAS console.
In the left-side navigation pane, choose Tools > Inspection and Scoring.
On the Instance Inspection and Scoring page, click Settings in the upper-right corner.
In the Configure Inspection and Scoring dialog box, select the engine that the database instance runs, and click OK.
After you enable this feature, DAS scores each connected database instance once a day during a random time period.
Run a manual inspection
Log on to the DAS console.
In the left-side navigation pane, choose Tools > Inspection and Scoring.
On the Instance Inspection and Scoring page, click Start Inspection.
In the Instance Inspection dialog box, go to the Select Instances section. Select one or more database instances and click the
icon to move them to the Selected Instances section.In the Inspection Time section, specify a time range.
The start time cannot be later than the current time. The time range must be between 1 hour and 24 hours.
Click Confirm.
View inspection results
On the Instance Inspection and Scoring page, search for an instance by name or alias to view its results for a specific period.
For details on what triggers score deductions, see Scoring rules.
The following actions are available for each instance:
| Action | Location | Description |
|---|---|---|
| Deduction Details | Actions column | View which conditions triggered score deductions in the Deduction Details dialog box |
| Report | Actions column | View the full scoring report in the Scoring Report panel |
| Delete | Actions column | Remove the inspection results |
| Click the instance ID | Results list | View the performance trend on the Performance Trends tab. For more information, see Performance trends |
Click the  icon | Results list | Download the inspection and scoring results to your computer |
Related API operations
| Operation | Description |
|---|---|
| GetInstanceInspections | Queries the results of inspections performed on database instances by using the inspection and scoring feature |