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{
"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",
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"app.kubernetes.io/version": "1.8.1",
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"prometheus": "k8s",
"role": "alert-rules"
},
"name": "node-exporter-rules",
"namespace": "monitoring"
},
"spec": {
"groups": [
{
"name": "node-exporter",
"rules": [
{
"alert": "NodeFilesystemSpaceFillingUp",
"annotations": {
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"description": "Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint }}, 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",
"summary": "Filesystem is predicted to run out of space within the next 24 hours."
},
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"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",
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"for": "1h",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeFilesystemSpaceFillingUp",
"annotations": {
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"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.",
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"runbook_url": "https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemspacefillingup",
"summary": "Filesystem is predicted to run out of space within the next 4 hours."
},
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"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",
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"for": "1h",
"labels": {
"severity": "critical"
}
},
{
"alert": "NodeFilesystemAlmostOutOfSpace",
"annotations": {
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"description": "Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint }}, 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",
"summary": "Filesystem has less than 5% space left."
},
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"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",
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"for": "30m",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeFilesystemAlmostOutOfSpace",
"annotations": {
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"description": "Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint }}, 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",
"summary": "Filesystem has less than 3% space left."
},
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"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",
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"for": "30m",
"labels": {
"severity": "critical"
}
},
{
"alert": "NodeFilesystemFilesFillingUp",
"annotations": {
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"description": "Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint }}, 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",
"summary": "Filesystem is predicted to run out of inodes within the next 24 hours."
},
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"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",
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"for": "1h",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeFilesystemFilesFillingUp",
"annotations": {
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"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.",
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"runbook_url": "https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemfilesfillingup",
"summary": "Filesystem is predicted to run out of inodes within the next 4 hours."
},
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"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",
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"for": "1h",
"labels": {
"severity": "critical"
}
},
{
"alert": "NodeFilesystemAlmostOutOfFiles",
"annotations": {
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"description": "Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint }}, 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",
"summary": "Filesystem has less than 5% inodes left."
},
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"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",
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"for": "1h",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeFilesystemAlmostOutOfFiles",
"annotations": {
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"description": "Filesystem on {{ $labels.device }}, mounted on {{ $labels.mountpoint }}, 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",
"summary": "Filesystem has less than 3% inodes left."
},
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"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",
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"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."
},
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"expr": "rate(node_network_receive_errs_total{job=\"node-exporter\"}[2m]) / rate(node_network_receive_packets_total{job=\"node-exporter\"}[2m]) > 0.01\n",
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"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."
},
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"expr": "rate(node_network_transmit_errs_total{job=\"node-exporter\"}[2m]) / rate(node_network_transmit_packets_total{job=\"node-exporter\"}[2m]) > 0.01\n",
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"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."
},
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"expr": "(node_nf_conntrack_entries{job=\"node-exporter\"} / node_nf_conntrack_entries_limit) > 0.75\n",
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"labels": {
"severity": "warning"
}
},
{
"alert": "NodeTextFileCollectorScrapeError",
"annotations": {
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"description": "Node Exporter text file collector on {{ $labels.instance }} failed to scrape.",
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"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\n",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeClockSkewDetected",
"annotations": {
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"description": "Clock at {{ $labels.instance }} is out of sync by more than 0.05s. Ensure NTP is configured correctly on this host.",
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"runbook_url": "https://runbooks.prometheus-operator.dev/runbooks/node/nodeclockskewdetected",
"summary": "Clock skew detected."
},
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"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\nand\n deriv(node_timex_offset_seconds{job=\"node-exporter\"}[5m]) <= 0\n)\n",
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"for": "10m",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeClockNotSynchronising",
"annotations": {
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"description": "Clock at {{ $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",
"summary": "Clock not synchronising."
},
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"expr": "min_over_time(node_timex_sync_status{job=\"node-exporter\"}[5m]) == 0\nand\nnode_timex_maxerror_seconds{job=\"node-exporter\"} >= 16\n",
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"for": "10m",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeRAIDDegraded",
"annotations": {
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"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.",
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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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},
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"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\n",
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"for": "15m",
"labels": {
"severity": "critical"
}
},
{
"alert": "NodeRAIDDiskFailure",
"annotations": {
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"description": "At least one device in RAID array at {{ $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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},
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"expr": "node_md_disks{state=\"failed\",job=\"node-exporter\",device=~\"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)\"} > 0\n",
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"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"
}
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},
{
"alert": "NodeCPUHighUsage",
"annotations": {
"description": "CPU usage at {{ $labels.instance }} has been above 90% for the last 15 minutes, is currently at {{ printf \"%.2f\" $value }}%.\n",
"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\n",
"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 }}.\nThis might indicate this instance resources saturation and can cause it becoming unresponsive.\n",
"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\"}\n/ count without (cpu, mode) (node_cpu_seconds_total{job=\"node-exporter\", mode=\"idle\"}) > 2\n",
"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 }}.\nPlease check that there is enough memory available at this instance.\n",
"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\n",
"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 }}%.\n",
"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\n",
"for": "15m",
"labels": {
"severity": "warning"
}
},
{
"alert": "NodeDiskIOSaturation",
"annotations": {
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"description": "Disk IO queue (aqu-sq) is high on {{ $labels.device }} at {{ $labels.instance }}, has been above 10 for the last 30 minutes, is currently at {{ printf \"%.2f\" $value }}.\nThis symptom might indicate disk saturation.\n",
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"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\n",
"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\n",
"for": "5m",
"labels": {
"severity": "warning"
}
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},
{
"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\n",
"for": "5m",
"labels": {
"severity": "warning"
}
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}
]
},
{
"name": "node-exporter.rules",
"rules": [
{
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"expr": "count without (cpu, mode) (\n node_cpu_seconds_total{job=\"node-exporter\",mode=\"idle\"}\n)\n",
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"record": "instance:node_num_cpu:sum"
},
{
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"expr": "1 - avg without (cpu) (\n sum without (mode) (rate(node_cpu_seconds_total{job=\"node-exporter\", mode=~\"idle|iowait|steal\"}[5m]))\n)\n",
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"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"
},
{
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"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",
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"record": "instance:node_memory_utilisation:ratio"
},
{
"expr": "rate(node_vmstat_pgmajfault{job=\"node-exporter\"}[5m])\n",
"record": "instance:node_vmstat_pgmajfault:rate5m"
},
{
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"expr": "rate(node_disk_io_time_seconds_total{job=\"node-exporter\", device=~\"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)\"}[5m])\n",
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"record": "instance_device:node_disk_io_time_seconds:rate5m"
},
{
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"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])\n",
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"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"
}
]
}
]
}
}
