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警报规则示例
请在这里查看所有可用的 Longhorn 指标列表，并构建您自己的警报规则。
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
labels:
prometheus: longhorn
role: alert-rules
name: prometheus-longhorn-rules
namespace: monitoring
spec:
groups:
- name: longhorn.rules
rules:
- alert: LonghornVolumeActualSpaceUsedWarning
annotations:
description: The actual space used by Longhorn volume {{$labels.volume}} on {{$labels.node}} is at {{$value}}% capacity for
more than 5 minutes.
summary: The actual used space of Longhorn volume is over 90% of the capacity.
expr: (longhorn_volume_actual_size_bytes / longhorn_volume_capacity_bytes) * 100 > 90
for: 5m
labels:
issue: The actual used space of Longhorn volume {{$labels.volume}} on {{$labels.node}} is high.
severity: warning
- alert: LonghornVolumeStatusCritical
annotations:
description: Longhorn volume {{$labels.volume}} on {{$labels.node}} is Fault for
more than 2 minutes.
summary: Longhorn volume {{$labels.volume}} is Fault
expr: longhorn_volume_robustness == 3
for: 5m
labels:
issue: Longhorn volume {{$labels.volume}} is Fault.
severity: critical
- alert: LonghornVolumeStatusWarning
annotations:
description: Longhorn volume {{$labels.volume}} on {{$labels.node}} is Degraded for
more than 5 minutes.
summary: Longhorn volume {{$labels.volume}} is Degraded
expr: longhorn_volume_robustness == 2
for: 5m
labels:
issue: Longhorn volume {{$labels.volume}} is Degraded.
severity: warning
- alert: LonghornNodeStorageWarning
annotations:
description: The used storage of node {{$labels.node}} is at {{$value}}% capacity for
more than 5 minutes.
summary: The used storage of node is over 70% of the capacity.
expr: (longhorn_node_storage_usage_bytes / longhorn_node_storage_capacity_bytes) * 100 > 70
for: 5m
labels:
issue: The used storage of node {{$labels.node}} is high.
severity: warning
- alert: LonghornDiskStorageWarning
annotations:
description: The used storage of disk {{$labels.disk}} on node {{$labels.node}} is at {{$value}}% capacity for
more than 5 minutes.
summary: The used storage of disk is over 70% of the capacity.
expr: (longhorn_disk_usage_bytes / longhorn_disk_capacity_bytes) * 100 > 70
for: 5m
labels:
issue: The used storage of disk {{$labels.disk}} on node {{$labels.node}} is high.
severity: warning
- alert: LonghornNodeDown
annotations:
description: There are {{$value}} Longhorn nodes which have been offline for more than 5 minutes.
summary: Longhorn nodes is offline
expr: (avg(longhorn_node_count_total) or on() vector(0)) - (count(longhorn_node_status{condition="ready"} == 1) or on() vector(0)) > 0
for: 5m
labels:
issue: There are {{$value}} Longhorn nodes are offline
severity: critical
- alert: LonghornInstanceManagerCPUUsageWarning
annotations:
description: Longhorn instance manager {{$labels.instance_manager}} on {{$labels.node}} has CPU Usage / CPU request is {{$value}}% for
more than 5 minutes.
summary: Longhorn instance manager {{$labels.instance_manager}} on {{$labels.node}} has CPU Usage / CPU request is over 300%.
expr: (longhorn_instance_manager_cpu_usage_millicpu/longhorn_instance_manager_cpu_requests_millicpu) * 100 > 300
for: 5m
labels:
issue: Longhorn instance manager {{$labels.instance_manager}} on {{$labels.node}} consumes 3 times the CPU request.
severity: warning
- alert: LonghornNodeCPUUsageWarning
annotations:
description: Longhorn node {{$labels.node}} has CPU Usage / CPU capacity is {{$value}}% for
more than 5 minutes.
summary: Longhorn node {{$labels.node}} experiences high CPU pressure for more than 5m.
expr: (longhorn_node_cpu_usage_millicpu / longhorn_node_cpu_capacity_millicpu) * 100 > 90
for: 5m
labels:
issue: Longhorn node {{$labels.node}} experiences high CPU pressure.
severity: warning有关如何定义警报规则的更多信息，请访问 这里。