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# Alertes préconfigurées
<a name="hyperpod-observability-addon-alerts"></a>

Le module complémentaire d'observabilité Amazon SageMaker HyperPod (SageMaker HyperPod) active des alertes par défaut pour votre cluster et vos charges de travail afin de vous avertir lorsque le système détecte des indicateurs précoces courants de sous-performance du cluster. Ces alertes sont définies dans le système d’alerte intégré d’Amazon Managed Grafana. Pour en savoir plus sur la façon de modifier ces alertes préconfigurées ou d’en créer de nouvelles, consultez [Alertes dans Grafana version 10](https://docs.aws.amazon.com/grafana/latest/userguide/v10-alerts.html) dans le *Guide de l’utilisateur Amazon Managed Grafana*. Le code YAML suivant montre les alertes par défaut.

```
groups:
- name: sagemaker_hyperpod_alerts
  rules:
  # GPU_TEMP_ABOVE_80C
  - alert: GPUHighTemperature
    expr: DCGM_FI_DEV_GPU_TEMP > 80
    for: 5m
    labels:
      severity: warning
    annotations:
      summary: "GPU Temperature Above 80C"
      description: "GPU {{ $labels.gpu }} temperature is {{ $value }}°C."

  # GPU_TEMP_ABOVE_85C  
  - alert: GPUCriticalTemperature  
    expr: DCGM_FI_DEV_GPU_TEMP > 85
    for: 1m
    labels:
      severity: critical
    annotations:
      summary: "GPU Temperature Above 85C"
      description: "GPU {{ $labels.gpu }} temperature is {{ $value }}°C."

  # GPU_MEMORY_ERROR
  # Any ECC double-bit errors indicate serious memory issues requiring immediate attention
  - alert: GPUMemoryErrorDetected
    expr: DCGM_FI_DEV_ECC_DBE_VOL_TOTAL > 0 or DCGM_FI_DEV_ECC_DBE_AGG_TOTAL > DCGM_FI_DEV_ECC_DBE_AGG_TOTAL offset 5m
    labels:
      severity: critical
    annotations:
      summary: "GPU ECC Double-Bit Error Detected"
      description: "GPU {{ $labels.gpu }} has detected ECC double-bit errors."

  # GPU_POWER_WARNING
  # Sustained power limit violations can impact performance and stability
  - alert: GPUPowerViolation
    expr: DCGM_FI_DEV_POWER_VIOLATION > 100
    for: 5m
    labels:
      severity: warning  
    annotations:
      summary: "GPU Power Violation"
      description: "GPU {{ $labels.gpu }} has been operating at power limit for extended period."

  # GPU_NVLINK_ERROR
  # NVLink errors above threshold indicate interconnect stability issues
  - alert: NVLinkErrorsDetected
    expr: DCGM_FI_DEV_NVLINK_RECOVERY_ERROR_COUNT_TOTAL > 0 or DCGM_FI_DEV_NVLINK_REPLAY_ERROR_COUNT_TOTAL > 10
    labels:
      severity: warning
    annotations:
      summary: "NVLink Errors Detected" 
      description: "GPU {{ $labels.gpu }} has detected NVLink errors."

  # GPU_THERMAL_VIOLATION  
  # Immediate alert on thermal violations to prevent hardware damage
  - alert: GPUThermalViolation
    expr: increase(DCGM_FI_DEV_THERMAL_VIOLATION[5m]) > 0
    for: 1m
    labels:
      severity: critical
    annotations:
      summary: "GPU Thermal Violation Detected"
      description: "GPU {{ $labels.gpu }} has thermal violations on node {{ $labels.Hostname }}"

  # GPU_XID_ERROR
  # XID errors indicate driver or hardware level GPU issues requiring investigation
  - alert: GPUXidError
    expr: DCGM_FI_DEV_XID_ERRORS > 0
    for: 0m
    labels:
      severity: critical
    annotations:
      summary: "GPU XID Error Detected"
      description: "GPU {{ $labels.gpu }} experienced XID error {{ $value }} on node {{ $labels.Hostname }}"

  # MIG_CONFIG_FAILURE
  # MIG configuration failures indicate issues with GPU partitioning setup
  - alert: MIGConfigFailure
    expr: kubelet_node_name{nvidia_com_mig_config_state="failed"} > 0
    for: 1m
    labels:
      severity: critical
    annotations:
      summary: "MIG Configuration Failed"
      description: "MIG configuration failed on node {{ $labels.instance }}"

  # DISK_SPACE_WARNING
  # 90% threshold ensures time to respond before complete disk exhaustion
  - alert: NodeDiskSpaceWarning
    expr: (node_filesystem_size_bytes - node_filesystem_free_bytes) / node_filesystem_size_bytes * 100 > 90
    for: 5m
    labels:
      severity: warning
    annotations:
      summary: "High Disk Usage"
      description: "Node {{ $labels.instance }} disk usage is above 90%"

  # FSX_STORAGE_WARNING
  # 80% FSx utilization allows buffer for burst workloads
  - alert: FsxLustreStorageWarning
    expr: fsx_lustre_storage_used_bytes / fsx_lustre_storage_capacity_bytes * 100 > 80
    for: 5m
    labels:
      severity: warning
    annotations:
      summary: "High FSx Lustre Usage"
      description: "FSx Lustre storage usage is above 80% on file system {{ $labels.filesystem_id }}"
```