apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
labels:
app.kubernetes.io/component: exporter
app.kubernetes.io/name: node-exporter
app.kubernetes.io/part-of: kube-prometheus
app.kubernetes.io/version: 1.6.1
prometheus: k8s
role: alert-rules
name: node-exporter-rules
namespace: monitoring
annotations:
argocd.argoproj.io/sync-wave: '1'
spec:
groups:
- name: node-exporter
rules:
- alert: NodeFilesystemSpaceFillingUp
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
space left and is filling up.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemspacefillingup
summary: Filesystem is predicted to run out of space within the next 24
hours.
expr: "(\n node_filesystem_avail_bytes{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} / node_filesystem_size_bytes{job=\"node-exporter\"\
,fstype!=\"\",mountpoint!=\"\"} * 100 < 15\nand\n predict_linear(node_filesystem_avail_bytes{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"}[6h], 24*60*60) < 0\nand\n\
\ node_filesystem_readonly{job=\"node-exporter\",fstype!=\"\",mountpoint!=\"\
\"} == 0\n)\n"
for: 1h
labels:
severity: warning
- alert: NodeFilesystemSpaceFillingUp
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
space left and is filling up fast.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemspacefillingup
summary: Filesystem is predicted to run out of space within the next 4
hours.
expr: "(\n node_filesystem_avail_bytes{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} / node_filesystem_size_bytes{job=\"node-exporter\"\
,fstype!=\"\",mountpoint!=\"\"} * 100 < 10\nand\n predict_linear(node_filesystem_avail_bytes{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"}[6h], 4*60*60) < 0\nand\n\
\ node_filesystem_readonly{job=\"node-exporter\",fstype!=\"\",mountpoint!=\"\
\"} == 0\n)\n"
for: 1h
labels:
severity: critical
- alert: NodeFilesystemAlmostOutOfSpace
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
space left.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutofspace
summary: Filesystem has less than 5% space left.
expr: "(\n node_filesystem_avail_bytes{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} / node_filesystem_size_bytes{job=\"node-exporter\"\
,fstype!=\"\",mountpoint!=\"\"} * 100 < 5\nand\n node_filesystem_readonly{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"} == 0\n)\n"
for: 30m
labels:
severity: warning
- alert: NodeFilesystemAlmostOutOfSpace
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
space left.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutofspace
summary: Filesystem has less than 3% space left.
expr: "(\n node_filesystem_avail_bytes{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} / node_filesystem_size_bytes{job=\"node-exporter\"\
,fstype!=\"\",mountpoint!=\"\"} * 100 < 3\nand\n node_filesystem_readonly{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"} == 0\n)\n"
for: 30m
labels:
severity: critical
- alert: NodeFilesystemFilesFillingUp
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
inodes left and is filling up.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemfilesfillingup
summary: Filesystem is predicted to run out of inodes within the next
24 hours.
expr: "(\n node_filesystem_files_free{job=\"node-exporter\",fstype!=\"\"\
,mountpoint!=\"\"} / node_filesystem_files{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} * 100 < 40\nand\n predict_linear(node_filesystem_files_free{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"}[6h], 24*60*60) < 0\nand\n\
\ node_filesystem_readonly{job=\"node-exporter\",fstype!=\"\",mountpoint!=\"\
\"} == 0\n)\n"
for: 1h
labels:
severity: warning
- alert: NodeFilesystemFilesFillingUp
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
inodes left and is filling up fast.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemfilesfillingup
summary: Filesystem is predicted to run out of inodes within the next
4 hours.
expr: "(\n node_filesystem_files_free{job=\"node-exporter\",fstype!=\"\"\
,mountpoint!=\"\"} / node_filesystem_files{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} * 100 < 20\nand\n predict_linear(node_filesystem_files_free{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"}[6h], 4*60*60) < 0\nand\n\
\ node_filesystem_readonly{job=\"node-exporter\",fstype!=\"\",mountpoint!=\"\
\"} == 0\n)\n"
for: 1h
labels:
severity: critical
- alert: NodeFilesystemAlmostOutOfFiles
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
inodes left.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutoffiles
summary: Filesystem has less than 5% inodes left.
expr: "(\n node_filesystem_files_free{job=\"node-exporter\",fstype!=\"\"\
,mountpoint!=\"\"} / node_filesystem_files{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} * 100 < 5\nand\n node_filesystem_readonly{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"} == 0\n)\n"
for: 1h
labels:
severity: warning
- alert: NodeFilesystemAlmostOutOfFiles
annotations:
description: Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint
}}, at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available
inodes left.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutoffiles
summary: Filesystem has less than 3% inodes left.
expr: "(\n node_filesystem_files_free{job=\"node-exporter\",fstype!=\"\"\
,mountpoint!=\"\"} / node_filesystem_files{job=\"node-exporter\",fstype!=\"\
\",mountpoint!=\"\"} * 100 < 3\nand\n node_filesystem_readonly{job=\"\
node-exporter\",fstype!=\"\",mountpoint!=\"\"} == 0\n)\n"
for: 1h
labels:
severity: critical
- alert: NodeNetworkReceiveErrs
annotations:
description: '{{ $labels.instance }} interface {{ $labels.device }} has
encountered {{ printf "%.0f" $value }} receive errors in the last two
minutes.'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodenetworkreceiveerrs
summary: Network interface is reporting many receive errors.
expr: 'rate(node_network_receive_errs_total{job="node-exporter"}[2m]) /
rate(node_network_receive_packets_total{job="node-exporter"}[2m]) > 0.01
'
for: 1h
labels:
severity: warning
- alert: NodeNetworkTransmitErrs
annotations:
description: '{{ $labels.instance }} interface {{ $labels.device }} has
encountered {{ printf "%.0f" $value }} transmit errors in the last two
minutes.'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodenetworktransmiterrs
summary: Network interface is reporting many transmit errors.
expr: 'rate(node_network_transmit_errs_total{job="node-exporter"}[2m]) /
rate(node_network_transmit_packets_total{job="node-exporter"}[2m]) > 0.01
'
for: 1h
labels:
severity: warning
- alert: NodeHighNumberConntrackEntriesUsed
annotations:
description: '{{ $value | humanizePercentage }} of conntrack entries are
used.'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodehighnumberconntrackentriesused
summary: Number of conntrack are getting close to the limit.
expr: '(node_nf_conntrack_entries{job="node-exporter"} / node_nf_conntrack_entries_limit)
> 0.75
'
labels:
severity: warning
- alert: NodeTextFileCollectorScrapeError
annotations:
description: Node Exporter text file collector on {{ $labels.instance
}} failed to scrape.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodetextfilecollectorscrapeerror
summary: Node Exporter text file collector failed to scrape.
expr: 'node_textfile_scrape_error{job="node-exporter"} == 1
'
labels:
severity: warning
- alert: NodeClockSkewDetected
annotations:
description: Clock at {{ $labels.instance }} is out of sync by more than
0.05s. Ensure NTP is configured correctly on this host.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodeclockskewdetected
summary: Clock skew detected.
expr: "(\n node_timex_offset_seconds{job=\"node-exporter\"} > 0.05\nand\n\
\ deriv(node_timex_offset_seconds{job=\"node-exporter\"}[5m]) >= 0\n\
)\nor\n(\n node_timex_offset_seconds{job=\"node-exporter\"} < -0.05\n\
and\n deriv(node_timex_offset_seconds{job=\"node-exporter\"}[5m]) <=\
\ 0\n)\n"
for: 10m
labels:
severity: warning
- alert: NodeClockNotSynchronising
annotations:
description: Clock at {{ $labels.instance }} is not synchronising. Ensure
NTP is configured on this host.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodeclocknotsynchronising
summary: Clock not synchronising.
expr: 'min_over_time(node_timex_sync_status{job="node-exporter"}[5m]) ==
0
and
node_timex_maxerror_seconds{job="node-exporter"} >= 16
'
for: 10m
labels:
severity: warning
- alert: NodeRAIDDegraded
annotations:
description: RAID array '{{ $labels.device }}' at {{ $labels.instance
}} is in degraded state due to one or more disks failures. Number of
spare drives is insufficient to fix issue automatically.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/noderaiddegraded
summary: RAID Array is degraded.
expr: 'node_md_disks_required{job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"}
- ignoring (state) (node_md_disks{state="active",job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"})
> 0
'
for: 15m
labels:
severity: critical
- alert: NodeRAIDDiskFailure
annotations:
description: At least one device in RAID array at {{ $labels.instance
}} failed. Array '{{ $labels.device }}' needs attention and possibly
a disk swap.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/noderaiddiskfailure
summary: Failed device in RAID array.
expr: 'node_md_disks{state="failed",job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"}
> 0
'
labels:
severity: warning
- alert: NodeFileDescriptorLimit
annotations:
description: File descriptors limit at {{ $labels.instance }} is currently
at {{ printf "%.2f" $value }}%.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefiledescriptorlimit
summary: Kernel is predicted to exhaust file descriptors limit soon.
expr: "(\n node_filefd_allocated{job=\"node-exporter\"} * 100 / node_filefd_maximum{job=\"\
node-exporter\"} > 70\n)\n"
for: 15m
labels:
severity: warning
- alert: NodeFileDescriptorLimit
annotations:
description: File descriptors limit at {{ $labels.instance }} is currently
at {{ printf "%.2f" $value }}%.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodefiledescriptorlimit
summary: Kernel is predicted to exhaust file descriptors limit soon.
expr: "(\n node_filefd_allocated{job=\"node-exporter\"} * 100 / node_filefd_maximum{job=\"\
node-exporter\"} > 90\n)\n"
for: 15m
labels:
severity: critical
- alert: NodeCPUHighUsage
annotations:
description: 'CPU usage at {{ $labels.instance }} has been above 90% for
the last 15 minutes, is currently at {{ printf "%.2f" $value }}%.
'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodecpuhighusage
summary: High CPU usage.
expr: 'sum without(mode) (avg without (cpu) (rate(node_cpu_seconds_total{job="node-exporter",
mode!="idle"}[2m]))) * 100 > 90
'
for: 15m
labels:
severity: info
- alert: NodeSystemSaturation
annotations:
description: 'System load per core at {{ $labels.instance }} has been
above 2 for the last 15 minutes, is currently at {{ printf "%.2f" $value
}}.
This might indicate this instance resources saturation and can cause
it becoming unresponsive.
'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodesystemsaturation
summary: System saturated, load per core is very high.
expr: 'node_load1{job="node-exporter"}
/ count without (cpu, mode) (node_cpu_seconds_total{job="node-exporter",
mode="idle"}) > 2
'
for: 15m
labels:
severity: warning
- alert: NodeMemoryMajorPagesFaults
annotations:
description: 'Memory major pages are occurring at very high rate at {{
$labels.instance }}, 500 major page faults per second for the last 15
minutes, is currently at {{ printf "%.2f" $value }}.
Please check that there is enough memory available at this instance.
'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodememorymajorpagesfaults
summary: Memory major page faults are occurring at very high rate.
expr: 'rate(node_vmstat_pgmajfault{job="node-exporter"}[5m]) > 500
'
for: 15m
labels:
severity: warning
- alert: NodeMemoryHighUtilization
annotations:
description: 'Memory is filling up at {{ $labels.instance }}, has been
above 90% for the last 15 minutes, is currently at {{ printf "%.2f"
$value }}%.
'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodememoryhighutilization
summary: Host is running out of memory.
expr: '100 - (node_memory_MemAvailable_bytes{job="node-exporter"} / node_memory_MemTotal_bytes{job="node-exporter"}
* 100) > 90
'
for: 15m
labels:
severity: warning
- alert: NodeDiskIOSaturation
annotations:
description: 'Disk IO queue (aqu-sq) is high on {{ $labels.device }} at
{{ $labels.instance }}, has been above 10 for the last 15 minutes, is
currently at {{ printf "%.2f" $value }}.
This symptom might indicate disk saturation.
'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodediskiosaturation
summary: Disk IO queue is high.
expr: 'rate(node_disk_io_time_weighted_seconds_total{job="node-exporter",
device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"}[5m])
> 10
'
for: 30m
labels:
severity: warning
- alert: NodeSystemdServiceFailed
annotations:
description: Systemd service {{ $labels.name }} has entered failed state
at {{ $labels.instance }}
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodesystemdservicefailed
summary: Systemd service has entered failed state.
expr: 'node_systemd_unit_state{job="node-exporter", state="failed"} == 1
'
for: 5m
labels:
severity: warning
- alert: NodeBondingDegraded
annotations:
description: Bonding interface {{ $labels.master }} on {{ $labels.instance
}} is in degraded state due to one or more slave failures.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/node/nodebondingdegraded
summary: Bonding interface is degraded
expr: '(node_bonding_slaves - node_bonding_active) != 0
'
for: 5m
labels:
severity: warning
- name: node-exporter.rules
rules:
- expr: "count without (cpu, mode) (\n node_cpu_seconds_total{job=\"node-exporter\"\
,mode=\"idle\"}\n)\n"
record: instance:node_num_cpu:sum
- expr: "1 - avg without (cpu) (\n sum without (mode) (rate(node_cpu_seconds_total{job=\"\
node-exporter\", mode=~\"idle|iowait|steal\"}[5m]))\n)\n"
record: instance:node_cpu_utilisation:rate5m
- expr: "(\n node_load1{job=\"node-exporter\"}\n/\n instance:node_num_cpu:sum{job=\"\
node-exporter\"}\n)\n"
record: instance:node_load1_per_cpu:ratio
- expr: "1 - (\n (\n node_memory_MemAvailable_bytes{job=\"node-exporter\"\
}\n or\n (\n node_memory_Buffers_bytes{job=\"node-exporter\"\
}\n +\n node_memory_Cached_bytes{job=\"node-exporter\"}\n \
\ +\n node_memory_MemFree_bytes{job=\"node-exporter\"}\n \
\ +\n node_memory_Slab_bytes{job=\"node-exporter\"}\n )\n )\n\
/\n node_memory_MemTotal_bytes{job=\"node-exporter\"}\n)\n"
record: instance:node_memory_utilisation:ratio
- expr: 'rate(node_vmstat_pgmajfault{job="node-exporter"}[5m])
'
record: instance:node_vmstat_pgmajfault:rate5m
- expr: 'rate(node_disk_io_time_seconds_total{job="node-exporter", device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"}[5m])
'
record: instance_device:node_disk_io_time_seconds:rate5m
- expr: 'rate(node_disk_io_time_weighted_seconds_total{job="node-exporter",
device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"}[5m])
'
record: instance_device:node_disk_io_time_weighted_seconds:rate5m
- expr: "sum without (device) (\n rate(node_network_receive_bytes_total{job=\"\
node-exporter\", device!=\"lo\"}[5m])\n)\n"
record: instance:node_network_receive_bytes_excluding_lo:rate5m
- expr: "sum without (device) (\n rate(node_network_transmit_bytes_total{job=\"\
node-exporter\", device!=\"lo\"}[5m])\n)\n"
record: instance:node_network_transmit_bytes_excluding_lo:rate5m
- expr: "sum without (device) (\n rate(node_network_receive_drop_total{job=\"\
node-exporter\", device!=\"lo\"}[5m])\n)\n"
record: instance:node_network_receive_drop_excluding_lo:rate5m
- expr: "sum without (device) (\n rate(node_network_transmit_drop_total{job=\"\
node-exporter\", device!=\"lo\"}[5m])\n)\n"
record: instance:node_network_transmit_drop_excluding_lo:rate5m