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307 lines
14 KiB
307 lines
14 KiB
3 months ago
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apiVersion: monitoring.coreos.com/v1
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kind: PrometheusRule
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metadata:
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labels:
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app.kubernetes.io/component: exporter
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app.kubernetes.io/name: node-exporter
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app.kubernetes.io/part-of: kube-prometheus
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app.kubernetes.io/version: 1.2.2
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prometheus: k8s
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role: alert-rules
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name: node-exporter-rules
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namespace: monitoring
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spec:
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groups:
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- name: node-exporter
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rules:
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- alert: NodeFilesystemSpaceFillingUp
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left and is filling up.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemspacefillingup
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summary: Filesystem is predicted to run out of space within the next 24 hours.
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expr: |
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(
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node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 40
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and
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predict_linear(node_filesystem_avail_bytes{job="node-exporter",fstype!=""}[6h], 24*60*60) < 0
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 1h
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labels:
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severity: warning
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- alert: NodeFilesystemSpaceFillingUp
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left and is filling up fast.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemspacefillingup
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summary: Filesystem is predicted to run out of space within the next 4 hours.
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expr: |
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(
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node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 15
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and
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predict_linear(node_filesystem_avail_bytes{job="node-exporter",fstype!=""}[6h], 4*60*60) < 0
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 1h
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labels:
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severity: critical
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- alert: NodeFilesystemAlmostOutOfSpace
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutofspace
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summary: Filesystem has less than 5% space left.
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expr: |
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(
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node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 5
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 30m
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labels:
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severity: warning
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- alert: NodeFilesystemAlmostOutOfSpace
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutofspace
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summary: Filesystem has less than 3% space left.
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expr: |
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(
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node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 3
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 30m
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labels:
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severity: critical
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- alert: NodeFilesystemFilesFillingUp
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left and is filling up.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemfilesfillingup
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summary: Filesystem is predicted to run out of inodes within the next 24 hours.
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expr: |
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(
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node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 40
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and
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predict_linear(node_filesystem_files_free{job="node-exporter",fstype!=""}[6h], 24*60*60) < 0
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 1h
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labels:
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severity: warning
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- alert: NodeFilesystemFilesFillingUp
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left and is filling up fast.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemfilesfillingup
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summary: Filesystem is predicted to run out of inodes within the next 4 hours.
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expr: |
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(
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node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 20
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and
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predict_linear(node_filesystem_files_free{job="node-exporter",fstype!=""}[6h], 4*60*60) < 0
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 1h
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labels:
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severity: critical
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- alert: NodeFilesystemAlmostOutOfFiles
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutoffiles
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summary: Filesystem has less than 5% inodes left.
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expr: |
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(
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node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 5
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 1h
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labels:
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severity: warning
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- alert: NodeFilesystemAlmostOutOfFiles
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annotations:
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description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutoffiles
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summary: Filesystem has less than 3% inodes left.
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expr: |
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(
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node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 3
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and
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node_filesystem_readonly{job="node-exporter",fstype!=""} == 0
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)
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for: 1h
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labels:
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severity: critical
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- alert: NodeNetworkReceiveErrs
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annotations:
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description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} receive errors in the last two minutes.'
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodenetworkreceiveerrs
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summary: Network interface is reporting many receive errors.
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expr: |
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rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m]) > 0.01
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for: 1h
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labels:
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severity: warning
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- alert: NodeNetworkTransmitErrs
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annotations:
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description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} transmit errors in the last two minutes.'
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodenetworktransmiterrs
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summary: Network interface is reporting many transmit errors.
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expr: |
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rate(node_network_transmit_errs_total[2m]) / rate(node_network_transmit_packets_total[2m]) > 0.01
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for: 1h
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labels:
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severity: warning
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- alert: NodeHighNumberConntrackEntriesUsed
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annotations:
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description: '{{ $value | humanizePercentage }} of conntrack entries are used.'
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodehighnumberconntrackentriesused
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summary: Number of conntrack are getting close to the limit.
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expr: |
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(node_nf_conntrack_entries / node_nf_conntrack_entries_limit) > 0.75
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labels:
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severity: warning
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- alert: NodeTextFileCollectorScrapeError
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annotations:
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description: Node Exporter text file collector failed to scrape.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodetextfilecollectorscrapeerror
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summary: Node Exporter text file collector failed to scrape.
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expr: |
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node_textfile_scrape_error{job="node-exporter"} == 1
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labels:
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severity: warning
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- alert: NodeClockSkewDetected
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annotations:
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description: Clock on {{ $labels.instance }} is out of sync by more than 300s. Ensure NTP is configured correctly on this host.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodeclockskewdetected
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summary: Clock skew detected.
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expr: |
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(
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node_timex_offset_seconds > 0.05
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and
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deriv(node_timex_offset_seconds[5m]) >= 0
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)
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or
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(
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node_timex_offset_seconds < -0.05
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and
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deriv(node_timex_offset_seconds[5m]) <= 0
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)
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for: 10m
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labels:
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severity: warning
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- alert: NodeClockNotSynchronising
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annotations:
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description: Clock on {{ $labels.instance }} is not synchronising. Ensure NTP is configured on this host.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodeclocknotsynchronising
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summary: Clock not synchronising.
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expr: |
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min_over_time(node_timex_sync_status[5m]) == 0
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and
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node_timex_maxerror_seconds >= 16
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for: 10m
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labels:
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severity: warning
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- alert: NodeRAIDDegraded
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annotations:
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description: RAID array '{{ $labels.device }}' on {{ $labels.instance }} is in degraded state due to one or more disks failures. Number of spare drives is insufficient to fix issue automatically.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/noderaiddegraded
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summary: RAID Array is degraded
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expr: |
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node_md_disks_required - ignoring (state) (node_md_disks{state="active"}) > 0
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for: 15m
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labels:
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severity: critical
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- alert: NodeRAIDDiskFailure
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annotations:
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description: At least one device in RAID array on {{ $labels.instance }} failed. Array '{{ $labels.device }}' needs attention and possibly a disk swap.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/noderaiddiskfailure
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summary: Failed device in RAID array
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expr: |
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node_md_disks{state="failed"} > 0
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labels:
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severity: warning
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- alert: NodeFileDescriptorLimit
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annotations:
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description: File descriptors limit at {{ $labels.instance }} is currently at {{ printf "%.2f" $value }}%.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefiledescriptorlimit
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summary: Kernel is predicted to exhaust file descriptors limit soon.
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expr: |
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(
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node_filefd_allocated{job="node-exporter"} * 100 / node_filefd_maximum{job="node-exporter"} > 70
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)
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for: 15m
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labels:
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severity: warning
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- alert: NodeFileDescriptorLimit
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annotations:
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description: File descriptors limit at {{ $labels.instance }} is currently at {{ printf "%.2f" $value }}%.
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runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefiledescriptorlimit
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summary: Kernel is predicted to exhaust file descriptors limit soon.
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expr: |
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(
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node_filefd_allocated{job="node-exporter"} * 100 / node_filefd_maximum{job="node-exporter"} > 90
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)
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for: 15m
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labels:
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severity: critical
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- name: node-exporter.rules
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rules:
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- expr: |
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count without (cpu) (
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count without (mode) (
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node_cpu_seconds_total{job="node-exporter"}
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)
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)
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record: instance:node_num_cpu:sum
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- expr: |
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1 - avg without (cpu, mode) (
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rate(node_cpu_seconds_total{job="node-exporter", mode="idle"}[5m])
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)
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record: instance:node_cpu_utilisation:rate5m
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- expr: |
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(
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node_load1{job="node-exporter"}
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/
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instance:node_num_cpu:sum{job="node-exporter"}
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)
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record: instance:node_load1_per_cpu:ratio
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- expr: |
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1 - (
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node_memory_MemAvailable_bytes{job="node-exporter"}
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/
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node_memory_MemTotal_bytes{job="node-exporter"}
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)
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record: instance:node_memory_utilisation:ratio
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- expr: |
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rate(node_vmstat_pgmajfault{job="node-exporter"}[5m])
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record: instance:node_vmstat_pgmajfault:rate5m
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- expr: |
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rate(node_disk_io_time_seconds_total{job="node-exporter", device=~"mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+"}[5m])
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record: instance_device:node_disk_io_time_seconds:rate5m
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- expr: |
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rate(node_disk_io_time_weighted_seconds_total{job="node-exporter", device=~"mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+"}[5m])
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record: instance_device:node_disk_io_time_weighted_seconds:rate5m
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- expr: |
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sum without (device) (
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rate(node_network_receive_bytes_total{job="node-exporter", device!="lo"}[5m])
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)
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record: instance:node_network_receive_bytes_excluding_lo:rate5m
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- expr: |
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sum without (device) (
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rate(node_network_transmit_bytes_total{job="node-exporter", device!="lo"}[5m])
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)
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record: instance:node_network_transmit_bytes_excluding_lo:rate5m
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- expr: |
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sum without (device) (
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rate(node_network_receive_drop_total{job="node-exporter", device!="lo"}[5m])
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)
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record: instance:node_network_receive_drop_excluding_lo:rate5m
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- expr: |
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sum without (device) (
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rate(node_network_transmit_drop_total{job="node-exporter", device!="lo"}[5m])
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)
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record: instance:node_network_transmit_drop_excluding_lo:rate5m
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