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Instance Alerts
Instance alerts monitor the health and behavior of Yellowbrick database frontend components. These alerts capture both normal and abnormal exit conditions, allowing administrators to distinguish between expected pod terminations and critical failures.
Purpose
These alerts help identify:
- Unexpected terminations of the database frontend, which may trigger automated recovery actions.
- Crash events, where a minidump is generated and attached for support analysis.
- Intentional or benign exits, such as during controlled shutdowns or reconfigurations.
Critical alerts signal potential failures requiring action, while informational alerts are surfaced for visibility and correlation.
Alert Definitions
| Alert | Severity | Trigger After | Description | Threshold Ref |
|---|---|---|---|---|
Database Frontend Exit | CRITICAL | - | Database frontend exited. Restarting for recovery. | |
Database Frontend Exit | INFO | - | Database frontend exit requested. | |
Database Frontend Exit | INFO | - | Database frontend pod exited. | |
Database Frontend Minidump | CRITICAL | - | Database frontend crashed. Minidump file is included in the alert. |