285 lines
12 KiB
Plaintext
285 lines
12 KiB
Plaintext
{
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prometheusAlerts+:: {
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groups+: [
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{
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name: 'node-exporter',
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rules: [
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{
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alert: 'NodeFilesystemSpaceFillingUp',
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expr: |||
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(
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node_filesystem_avail_bytes{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_size_bytes{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < %(fsSpaceFillingUpWarningThreshold)d
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and
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predict_linear(node_filesystem_avail_bytes{%(nodeExporterSelector)s,%(fsSelector)s}[6h], 24*60*60) < 0
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Filesystem is predicted to run out of space within the next 24 hours.',
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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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},
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},
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{
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alert: 'NodeFilesystemSpaceFillingUp',
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expr: |||
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(
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node_filesystem_avail_bytes{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_size_bytes{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < %(fsSpaceFillingUpCriticalThreshold)d
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and
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predict_linear(node_filesystem_avail_bytes{%(nodeExporterSelector)s,%(fsSelector)s}[6h], 4*60*60) < 0
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: '%(nodeCriticalSeverity)s' % $._config,
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},
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annotations: {
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summary: 'Filesystem is predicted to run out of space within the next 4 hours.',
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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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},
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},
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{
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alert: 'NodeFilesystemAlmostOutOfSpace',
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expr: |||
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(
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node_filesystem_avail_bytes{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_size_bytes{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < %(fsSpaceAvailableCriticalThreshold)d
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Filesystem has less than %(fsSpaceAvailableCriticalThreshold)d%% space left.' % $._config,
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description: 'Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left.',
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},
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},
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{
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alert: 'NodeFilesystemAlmostOutOfSpace',
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expr: |||
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(
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node_filesystem_avail_bytes{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_size_bytes{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < %(fsSpaceAvailableWarningThreshold)d
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: '%(nodeCriticalSeverity)s' % $._config,
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},
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annotations: {
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summary: 'Filesystem has less than %(fsSpaceAvailableWarningThreshold)d%% space left.' % $._config,
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description: 'Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left.',
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},
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},
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{
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alert: 'NodeFilesystemFilesFillingUp',
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expr: |||
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(
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node_filesystem_files_free{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_files{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < 40
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and
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predict_linear(node_filesystem_files_free{%(nodeExporterSelector)s,%(fsSelector)s}[6h], 24*60*60) < 0
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Filesystem is predicted to run out of inodes within the next 24 hours.',
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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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},
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},
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{
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alert: 'NodeFilesystemFilesFillingUp',
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expr: |||
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(
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node_filesystem_files_free{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_files{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < 20
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and
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predict_linear(node_filesystem_files_free{%(nodeExporterSelector)s,%(fsSelector)s}[6h], 4*60*60) < 0
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: '%(nodeCriticalSeverity)s' % $._config,
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},
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annotations: {
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summary: 'Filesystem is predicted to run out of inodes within the next 4 hours.',
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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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},
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},
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{
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alert: 'NodeFilesystemAlmostOutOfFiles',
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expr: |||
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(
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node_filesystem_files_free{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_files{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < 5
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Filesystem has less than 5% inodes left.',
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description: 'Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left.',
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},
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},
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{
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alert: 'NodeFilesystemAlmostOutOfFiles',
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expr: |||
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(
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node_filesystem_files_free{%(nodeExporterSelector)s,%(fsSelector)s} / node_filesystem_files{%(nodeExporterSelector)s,%(fsSelector)s} * 100 < 3
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and
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node_filesystem_readonly{%(nodeExporterSelector)s,%(fsSelector)s} == 0
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)
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||| % $._config,
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'for': '1h',
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labels: {
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severity: '%(nodeCriticalSeverity)s' % $._config,
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},
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annotations: {
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summary: 'Filesystem has less than 3% inodes left.',
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description: 'Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left.',
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},
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},
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{
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alert: 'NodeNetworkReceiveErrs',
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expr: |||
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increase(node_network_receive_errs_total[2m]) > 10
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||| % $._config,
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'for': '1h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Network interface is reporting many receive errors.',
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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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},
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},
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{
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alert: 'NodeNetworkTransmitErrs',
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expr: |||
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increase(node_network_transmit_errs_total[2m]) > 10
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||| % $._config,
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'for': '1h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Network interface is reporting many transmit errors.',
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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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},
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},
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{
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alert: 'NodeHighNumberConntrackEntriesUsed',
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expr: |||
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(node_nf_conntrack_entries / node_nf_conntrack_entries_limit) > 0.75
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||| % $._config,
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annotations: {
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summary: 'Number of conntrack are getting close to the limit.',
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description: '{{ $value | humanizePercentage }} of conntrack entries are used.',
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},
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labels: {
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severity: 'warning',
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},
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},
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{
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alert: 'NodeTextFileCollectorScrapeError',
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expr: |||
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node_textfile_scrape_error{%(nodeExporterSelector)s} == 1
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||| % $._config,
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annotations: {
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summary: 'Node Exporter text file collector failed to scrape.',
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description: 'Node Exporter text file collector failed to scrape.',
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},
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labels: {
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severity: 'warning',
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},
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},
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{
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alert: 'NodeClockSkewDetected',
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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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||| % $._config,
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'for': '10m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Clock skew detected.',
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message: 'Clock on {{ $labels.instance }} is out of sync by more than 300s. Ensure NTP is configured correctly on this host.',
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},
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},
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{
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alert: 'NodeClockNotSynchronising',
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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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||| % $._config,
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'for': '10m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Clock not synchronising.',
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message: 'Clock on {{ $labels.instance }} is not synchronising. Ensure NTP is configured on this host.',
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},
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},
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{
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alert: 'NodeRAIDDegraded',
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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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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'critical',
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},
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annotations: {
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summary: 'RAID Array is degraded',
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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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},
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},
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{
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alert: 'NodeRAIDDiskFailure',
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expr: |||
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node_md_disks{state="fail"} > 0
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||| % $._config,
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Failed device in RAID array',
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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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},
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},
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],
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},
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],
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},
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}
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