Disable IO Wait warnings as we do not have means of influencing them
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@ -131,22 +131,22 @@ groups:
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annotations:
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summary: Host CPU steal noisy neighbor (instance {{ $labels.instance }})
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description: "CPU steal is > 10%. A noisy neighbor is killing VM performances or a spot instance may be out of credit.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostCpuHighIowait
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expr: 'avg by (instance) (rate(node_cpu_seconds_total{mode="iowait"}[5m])) * 100 > 15'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host CPU high iowait (instance {{ $labels.instance }})
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description: "CPU iowait > 15%. A high iowait means that you are disk or network bound.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostUnusualDiskIo
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expr: 'rate(node_disk_io_time_seconds_total[1m]) > 0.5'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Host unusual disk IO (instance {{ $labels.instance }})
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description: "Time spent in IO is too high on {{ $labels.instance }}. Check storage for issues.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# - alert: HostCpuHighIowait
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# expr: 'avg by (instance) (rate(node_cpu_seconds_total{mode="iowait"}[5m])) * 100 > 15'
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# for: 0m
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# labels:
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# severity: warning
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# annotations:
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# summary: Host CPU high iowait (instance {{ $labels.instance }})
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# description: "CPU iowait > 15%. A high iowait means that you are disk or network bound.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# - alert: HostUnusualDiskIo
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# expr: 'rate(node_disk_io_time_seconds_total[1m]) > 0.5'
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# for: 5m
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# labels:
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# severity: warning
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# annotations:
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# summary: Host unusual disk IO (instance {{ $labels.instance }})
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# description: "Time spent in IO is too high on {{ $labels.instance }}. Check storage for issues.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# - alert: HostContextSwitching
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# expr: '(rate(node_context_switches_total[5m])) / (count without(cpu, mode) (node_cpu_seconds_total{mode="idle"})) > 1000'
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# for: 0m
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