[ALERT] Alertname:LonghornVolumeStatusWarning Container:longhorn-manager Endpoint:manager Instance:10.42.0.2:9500 Issue:Longhorn Volume Pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 Is Degraded. Job:longhorn-backend Namespace:longhorn-system Node:hive03 Pod:longhorn-manager-g654m Prometheus:kube-prometheus-stack/kube-prometheus-stack-prometheus Pvc:kanister-pvc-6cklq Pvc_namespace:kasten-io Service:longhorn-backend Severity:warning Volume:pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865
Warning: Longhorn Volume Degradation Detected
A critical alert has been triggered in your Longhorn storage system, indicating a degraded state for a specific volume. This alert is a warning sign that requires immediate attention to prevent potential data loss or system instability.
Alert Details
- Alert Name: LonghornVolumeStatusWarning
- Container: longhorn-manager
- Endpoint: manager
- Instance: 10.42.0.2:9500
- Issue: Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 is Degraded
- Job: longhorn-backend
- Namespace: longhorn-system
- Node: hive03
- Pod: longhorn-manager-g654m
- Prometheus: kube-prometheus-stack/kube-prometheus-stack-prometheus
- PVC: kanister-pvc-6cklq
- PVC Namespace: kasten-io
- Service: longhorn-backend
- Severity: warning
- Volume: pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865
Common Labels
| Label | Value |
|---|---|
| alertname | LonghornVolumeStatusWarning |
| container | longhorn-manager |
| endpoint | manager |
| instance | 10.42.0.2:9500 |
| issue | Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 is Degraded. |
| job | longhorn-backend |
| namespace | longhorn-system |
| node | hive03 |
| pod | longhorn-manager-g654m |
| prometheus | kube-prometheus-stack/kube-prometheus-stack-prometheus |
| pvc | kanister-pvc-6cklq |
| pvc_namespace | kasten-io |
| service | longhorn-backend |
| severity | warning |
| volume | pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 |
Common Annotations
| Annotation | Value |
|---|---|
| description | Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 on hive03 is Degraded for more than 10 minutes. |
| summary | Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 is Degraded |
Alert History
| Starts At | Links |
|---|---|
| 2025-04-22 20:13:45.019 +0000 UTC | GeneratorURL |
What to Do Next
- Investigate the issue: Check the Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 on hive03 to determine the cause of the degradation.
- Verify the volume status: Use the Longhorn UI or CLI to verify the status of the volume and ensure it is not in a degraded state.
- Take corrective action: If the volume is indeed degraded, take corrective action to restore it to a healthy state.
- Monitor the situation: Continuously monitor the volume status to ensure it remains healthy and prevent future degradation.
Preventing Future Degradation
To prevent future degradation of Longhorn volumes, ensure that:
- Regular backups: Regular backups of your Longhorn volumes are performed to prevent data loss in case of a failure.
- Volume health checks: Regular health checks are performed on your Longhorn volumes to detect any issues before they become critical.
- System updates: Regular system updates are applied to ensure that your Longhorn system is running with the latest patches and security fixes.
- Monitoring and alerting: Monitoring and alerting systems are in place to detect any issues with your Longhorn volumes and trigger alerts when necessary.
Frequently Asked Questions
Q: What is the Longhorn Volume Status Warning alert? A: The Longhorn Volume Status Warning alert is a critical alert that indicates a degraded state for a specific Longhorn volume. This alert requires immediate attention to prevent potential data loss or system instability.
Q: What are the common labels associated with this alert? A: The common labels associated with this alert are:
- Alert Name: LonghornVolumeStatusWarning
- Container: longhorn-manager
- Endpoint: manager
- Instance: 10.42.0.2:9500
- Issue: Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 is Degraded
- Job: longhorn-backend
- Namespace: longhorn-system
- Node: hive03
- Pod: longhorn-manager-g654m
- Prometheus: kube-prometheus-stack/kube-prometheus-stack-prometheus
- PVC: kanister-pvc-6cklq
- PVC Namespace: kasten-io
- Service: longhorn-backend
- Severity: warning
- Volume: pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865
Q: What are the common annotations associated with this alert? A: The common annotations associated with this alert are:
- Description: Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 on hive03 is Degraded for more than 10 minutes.
- Summary: Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 is Degraded
Q: What should I do if I receive this alert? A: If you receive this alert, you should:
- Investigate the issue: Check the Longhorn volume pvc-11bf8cd1-8688-4488-b82e-38bd8ff62865 on hive03 to determine the cause of the degradation.
- Verify the volume status: Use the Longhorn UI or CLI to verify the status of the volume and ensure it is not in a degraded state.
- Take corrective action: If the volume is indeed degraded, take corrective action to restore it to a healthy state.
- Monitor the situation: Continuously monitor the volume status to ensure it remains healthy and prevent future degradation.
Q: How can I prevent future degradation of Longhorn volumes? A: To prevent future degradation of Longhorn volumes, ensure that:
- Regular backups: Regular backups of your Longhorn volumes are performed to prevent data loss in case of a failure.
- Volume health checks: Regular health checks are performed on your Longhorn volumes to detect any issues before they become critical.
- System updates: Regular system updates are applied to ensure that your Longhorn system is running with the latest patches and security fixes.
- Monitoring and alerting: Monitoring and alerting systems are in place to detect any issues with your Longhorn volumes and trigger alerts when necessary.
Q: What are the benefits of using Longhorn? A: The benefits of using Longhorn include:
- High-performance storage: Longhorn provides high-performance storage for your applications.
- Scalability: Longhorn is highly scalable and can handle large amounts of data.
- Flexibility: Longhorn supports a variety of storage protocols and can be used with a range of applications.
- Ease of use: Longhorn is easy to use and manage, with a simple and intuitive interface.
Q: What are the system requirements for Longhorn? A: The system requirements for Longhorn include:
- Kubernetes: Longhorn requires a Kubernetes cluster to run.
- Storage: Longhorn requires a storage system to store data.
- Network: Longhorn requires a network connection to communicate with other nodes.
- CPU and memory: Longhorn requires sufficient CPU and memory resources to run.
Q: How can I get support for Longhorn? A: You can get support for Longhorn through various channels, including:
- Documentation: Longhorn provides extensive documentation to help you get started and troubleshoot issues.
- Community: Longhorn has an active community of users and developers who can provide support and guidance.
- Support team: Longhorn provides a support team that can help you with any issues or questions you may have.