Configure Node exporter to generate Prometheus metrics

To configure nodes to generate Prometheus metrics, install the Node Exporter.

Metrics and KPIs

Metric	KPI
CPU node_cpu_seconds_total	1 - avg by(instance, job)(rate(node_cpu_seconds_total{mode=“idle”}[5m]))
Memory node_memory_MemTotal_bytes node_memory_Buffers_bytes node_memory_Cached_bytes node_memory_MemFree_bytes node_memory_Slab_bytes node_vmstat_pgmajfault	Memory Utilization 1 - (buffer + cached + free + slab)/total Page Fault Rate rate(node_vmstat_pgmajfault[1m])
Network Bytes node_network_receive_bytes_total node_network_transmit_bytes_total	Network Byte Rate rate(node_network_receive_bytes_total[5m]) rate(node_network_transmit_bytes_total[5m])
Disk node_filesystem_avail_bytes node_filesystem_size_bytes Read/Write byte rate node_disk_read_bytes_total node_disk_written_bytes_total Read Time and Count node_disk_read_time_seconds_total node_disk_reads_completed_total Write Time and Count node_disk_write_time_seconds_total node_disk_writes_completed_total	Disk Utilization 1 - available bytes / size bytes Disk IO Rate rate(node_disk_read_bytes_total[5m]) rate(node_disk_written_bytes_total[5m]) Disk Average Latency rate(…time_seconds_total[5m]) / rate(…_completed_total[5m])

Metric

KPI

CPU

node_cpu_seconds_total

1 - avg by(instance, job)(rate(node_cpu_seconds_total{mode=“idle”}[5m]))

Memory

node_memory_MemTotal_bytes

node_memory_Buffers_bytes

node_memory_Cached_bytes

node_memory_MemFree_bytes

node_memory_Slab_bytes

node_vmstat_pgmajfault

Memory Utilization

1 - (buffer + cached + free + slab)/total

Page Fault Rate

rate(node_vmstat_pgmajfault[1m])

Network Bytes

node_network_receive_bytes_total

node_network_transmit_bytes_total

Network Byte Rate

rate(node_network_receive_bytes_total[5m])

rate(node_network_transmit_bytes_total[5m])

Disk

node_filesystem_avail_bytes

node_filesystem_size_bytes

Read/Write byte rate

node_disk_read_bytes_total

node_disk_written_bytes_total

Read Time and Count

node_disk_read_time_seconds_total

node_disk_reads_completed_total

Write Time and Count

node_disk_write_time_seconds_total

node_disk_writes_completed_total

Disk Utilization

1 - available bytes / size bytes

Disk IO Rate

rate(node_disk_read_bytes_total[5m])

rate(node_disk_written_bytes_total[5m])

Disk Average Latency

rate(…time_seconds_total[5m])

rate(…_completed_total[5m])

KPI	Alert
Memory Utilization High Memory Page Faults	Saturation with resource_type=memory:utilization Saturation with resource_type=memory:page_fault
CPU Utilization	Saturation
Network Bytes Rate	ResourceRateAnomaly
Disk Utilization	Saturation
Disk Read/Write Rate	ResourceRateAnomaly
Disk Read/Write Latency Average	Saturation when latency average breaches 100ms