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docs: add alerting examples for CPU and CSV (#2317)

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Signed-off-by: EisenbergD <dominik.eisenberg@beiersdorf.com>
Co-authored-by: EisenbergD <dominik.eisenberg@beiersdorf.com>
This commit is contained in:
Dominik Eisenberg
2026-02-08 13:46:02 +01:00
committed by GitHub
parent ec6f705410
commit e951e516de
3 changed files with 69 additions and 4 deletions
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35
docs/collector.cpu.md
View File

@@ -80,7 +80,36 @@ avg by(instance) (
## Alerting examples
**prometheus.rules**
#### Average CPU utilization over 1 hour exceeds 80% (New CPU metric)
```yaml
# Alert on hosts with 1h avg CPU more than 80%
- alert: HighCPUUtilization
expr: |
avg_over_time(
(
sum by (instance) (
(
rate(windows_cpu_processor_utility_total{}[1m])
/
rate(windows_cpu_processor_rtc_total{}[1m])
)
) /
count by (instance) (
windows_cpu_processor_utility_total{}
)
)[1h:]
) > 80
for: 1m
labels:
severity: warning
metric_name: CPUUtilization
annotations:
summary: "High CPU utilization on {{ $labels.instance }}"
description: |
CPU utilization on {{ $labels.instance }} has averaged more than 80% over the last hour (current value: {{ printf "%.2f" $value }})
```
#### Average CPU utilization over 1 hour exceeds 80% (Old CPU metric)
```yaml
# Alert on hosts with more than 80% CPU usage over a 10 minute period
- alert: CpuUsage
@@ -91,6 +120,10 @@ avg by(instance) (
annotations:
summary: "CPU Usage (instance {{ $labels.instance }})"
description: "CPU Usage is more than 80%\n VALUE = {{ $value }}\n LABELS: {{ $labels }}"
```
#### CPU not using boost frequencies
```yaml
# Alert on hosts which are not boosting their CPU frequencies
- alert: NoCpuTurbo
expr: |

21
docs/collector.mscluster.md
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@@ -12,7 +12,7 @@ Enabled by default? | No
### `--collectors.mscluster.enabled`
Comma-separated list of collectors to use, for example:
`--collectors.mscluster.enabled=cluster,network,node,resource,resouregroup`.
`--collectors.mscluster.enabled=cluster,network,node,resource,resouregroup`.
Matching is case-sensitive.
## Metrics
@@ -183,4 +183,21 @@ count(windows_mscluster_resource_state{type="Network Name"})
```
## Alerting examples
_This collector does not yet have alerting examples, we would appreciate your help adding them!_
#### Low free space on cluster shared volume
```yaml
# Alerts if volume has less then 20% free space
- alert: LowCSVFreeSpace
expr: |
(
max by (name, cluster) (windows_mscluster_shared_volumes_free_bytes{name!="ClusterPerformanceHistory"})
/
max by (name, cluster) (windows_mscluster_shared_volumes_total_bytes{name!="ClusterPerformanceHistory"})
) * 100 < 20
for: 10m
labels:
severity: warning
annotations:
summary: "Low CSV free space on {{ $labels.name }}"
description: |
Cluster Shared Volume {{ $labels.name }} on cluster {{ $labels.cluster }} has less than 20% free space (current: {{ printf "%.2f" $value }}%)
```

17
docs/collector.os.md
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@@ -38,4 +38,19 @@ windows_os_install_time_timestamp_seconds 1.6725312e+09
_This collector does not yet have useful queries, we would appreciate your help adding them!_
## Alerting examples
_This collector does not yet have alerting examples, we would appreciate your help adding them!_
#### Average CPU utilization over 1 hour exceeds 80% (New CPU metric)
```yaml
# Alerts if Agent/Host is down for 5min
- alert: HypervHostDown
expr: up{app="hyper-v"} == 0
for: 5m
labels:
severity: critical
annotations:
summary: Hyper-V host {{ $labels.instance }} is down
description: |
Hyper-V host {{ $labels.instance }} has been unreachable for more than 5 minutes.
Job: {{ $labels.job }}
```