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Update google-cadvisor.yml

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Expression Explanation:
    The expression calculates the absolute change in CPU usage for containers by comparing the current rate of CPU usage (within the last 1 minute) with the rate of CPU usage from the previous minute. If this change exceeds 25%, the alert is triggered. Additionally, it compares the current rate of CPU usage with the rate from the previous 5 minutes to capture larger trends. If any of these conditions are met, the alert fires.
    
    Alert Details:
    - Alert Name: ContainerHighLowChangeCpuUsage
    - Trigger Condition: Absolute change in CPU usage exceeding 25%
    - Alert Severity: Informational (info)
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dzaczek 2023-08-17 08:31:39 +02:00 committed by GitHub
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10
dist/rules/docker-containers/google-cadvisor.yml vendored
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@ -58,6 +58,16 @@ groups:
summary: Container high throttle rate (instance {{ $labels.instance }}) summary: Container high throttle rate (instance {{ $labels.instance }})
description: "Container is being throttled\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" description: "Container is being throttled\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: ContainerHighLowChangeCpuUsage
expr: '(abs(( sum by (instance, name) (rate(container_cpu_usage_seconds_total{name!=""}[1m])) * 100)- ( sum by (instance, name) (rate(container_cpu_usage_seconds_total{name!=""}[1m] offset 1m)) * 100)) or abs(( sum by (instance, name) (rate(container_cpu_usage_seconds_total{name!=""}[1m])) * 100)- ( sum by (instance, name) (rate(container_cpu_usage_seconds_total{name!=""}[5m] offset 1m)) * 100)) )>25'
for: 0m
labels:
severity: info
annotations:
summary: Container change CPU utilization (instance {{ $labels.instance }})
description: "This alert rule monitors the absolute change in CPU usage within a time window and triggers an alert when the change exceeds 25%.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: ContainerLowCpuUtilization - alert: ContainerLowCpuUtilization
expr: '(sum(rate(container_cpu_usage_seconds_total{name!=""}[3m])) BY (instance, name) * 100) < 20' expr: '(sum(rate(container_cpu_usage_seconds_total{name!=""}[3m])) BY (instance, name) * 100) < 20'
for: 7d for: 7d