mirror of
https://github.com/prometheus/node_exporter.git
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107 lines
3.6 KiB
Plaintext
107 lines
3.6 KiB
Plaintext
{
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prometheusRules+:: {
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groups+: [
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{
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name: 'node-exporter.rules',
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rules: [
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{
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// This rule gives the number of CPUs per node.
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record: 'instance:node_num_cpu:sum',
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expr: |||
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count by (instance) (
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sum by (instance, cpu) (
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node_cpu{%(nodeExporterSelector)s}
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)
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)
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||| % $._config,
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},
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{
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// CPU utilisation is % CPU is not idle.
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record: 'instance:node_cpu_utilisation:avg1m',
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expr: |||
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1 - avg by (instance) (
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rate(node_cpu{%(nodeExporterSelector)s,mode="idle"}[1m])
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)
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||| % $._config,
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},
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{
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// CPU saturation is 1min avg run queue length / number of CPUs.
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// Can go over 100%. >100% is bad.
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record: 'instance:node_cpu_saturation_load1:',
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expr: |||
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sum by (instance) (node_load1{%(nodeExporterSelector)s})
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/
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instance:node_num_cpu:sum
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||| % $._config,
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},
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{
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// Total memory per node
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record: 'instance:node_memory_bytes_total:sum',
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expr: |||
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sum by (instance) (
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node_memory_MemTotal{%(nodeExporterSelector)s}
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)
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||| % $._config,
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},
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{
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// Memory utilisation per node, normalized by per-node memory
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record: 'instance:node_memory_utilisation:ratio',
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expr: |||
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1 - (
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node_memory_MemAvailable{%(nodeExporterSelector)s}
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/
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node_memory_MemTotal{%(nodeExporterSelector)s}
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)
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||| % $._config,
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},
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{
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record: 'instance:node_memory_swap_io_bytes:sum_rate',
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expr: |||
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1e3 * sum by (instance) (
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(rate(node_vmstat_pgpgin{%(nodeExporterSelector)s}[1m])
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+ rate(node_vmstat_pgpgout{%(nodeExporterSelector)s}[1m]))
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)
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||| % $._config,
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},
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{
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// Disk utilisation (ms spent, 1 second irate())
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record: 'instance:node_disk_utilisation:sum_irate',
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expr: |||
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sum by (instance) (
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irate(node_disk_io_time_ms{%(nodeExporterSelector)s,device=~"(sd|xvd).+"}[1m]) / 1e3
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)
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||| % $._config,
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},
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{
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// Disk saturation (ms spent, by rate() it's bound by 1 second)
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record: 'instance:node_disk_saturation:sum_irate',
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expr: |||
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sum by (instance) (
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irate(node_disk_io_time_weighted{%(nodeExporterSelector)s,device=~"(sd|xvd).+"}[1m]) / 1e3
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)
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||| % $._config,
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},
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{
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record: 'instance:node_net_utilisation:sum_irate',
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expr: |||
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sum by (instance) (
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(irate(node_network_receive_bytes{%(nodeExporterSelector)s,device=~"eth[0-9]+"}[1m]) +
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irate(node_network_transmit_bytes{%(nodeExporterSelector)s,device=~"eth[0-9]+"}[1m]))
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)
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||| % $._config,
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},
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{
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record: 'instance:node_net_saturation:sum_irate',
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expr: |||
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sum by (instance) (
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(irate(node_network_receive_drop{%(nodeExporterSelector)s,device=~"eth[0-9]+"}[1m]) +
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irate(node_network_transmit_drop{%(nodeExporterSelector)s,device=~"eth[0-9]+"}[1m]))
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)
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||| % $._config,
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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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