mirror of
https://github.com/samber/awesome-prometheus-alerts.git
synced 2026-06-21 17:07:24 +08:00
335 lines
16 KiB
YAML
335 lines
16 KiB
YAML
groups:
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- name: NodeExporter
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rules:
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- alert: HostOutOfMemory
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expr: '(node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes < .10)'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host out of memory (instance {{ $labels.instance }})
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description: "Node memory is filling up (< 10% left)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# node_vmstat_pgmajfault is exposed as untyped/gauge by node_exporter (from /proc/vmstat), so deriv() is used instead of rate().
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- alert: HostMemoryUnderMemoryPressure
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expr: '(deriv(node_vmstat_pgmajfault[5m]) > 1000)'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host memory under memory pressure (instance {{ $labels.instance }})
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description: "The node is under heavy memory pressure. High rate of major page faults ({{ $value }}/s).\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# You may want to increase the alert manager 'repeat_interval' for this type of alert to daily or weekly
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- alert: HostMemoryIsUnderutilized
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expr: 'min_over_time(node_memory_MemFree_bytes[1w]) > node_memory_MemTotal_bytes * .8'
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for: 0m
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labels:
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severity: info
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annotations:
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summary: Host Memory is underutilized (instance {{ $labels.instance }})
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description: "Node memory usage is < 20% for 1 week. Consider reducing memory space. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostUnusualNetworkThroughputIn
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expr: '((rate(node_network_receive_bytes_total[5m]) / node_network_speed_bytes) > .80) and node_network_speed_bytes > 0'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host unusual network throughput in (instance {{ $labels.instance }})
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description: "Host receive bandwidth is high (>80%).\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostUnusualNetworkThroughputOut
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expr: '((rate(node_network_transmit_bytes_total[5m]) / node_network_speed_bytes) > .80) and node_network_speed_bytes > 0'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host unusual network throughput out (instance {{ $labels.instance }})
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description: "Host transmit bandwidth is high (>80%)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostDiskIoUtilizationHigh
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expr: '(rate(node_disk_io_time_seconds_total[5m]) > .80)'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host disk IO utilization high (instance {{ $labels.instance }})
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description: "Disk utilization is high (> 80%)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# Please add ignored mountpoints in node_exporter parameters like
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# "--collector.filesystem.ignored-mount-points=^/(sys|proc|dev|run)($|/)".
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# Same rule using "node_filesystem_free_bytes" will fire when disk fills for non-root users.
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- alert: HostOutOfDiskSpace
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expr: '(node_filesystem_avail_bytes{fstype!~"^(fuse.*|tmpfs|cifs|nfs)"} / node_filesystem_size_bytes < .10 and on (instance, device, mountpoint) node_filesystem_readonly == 0)'
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for: 2m
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labels:
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severity: critical
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annotations:
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summary: Host out of disk space (instance {{ $labels.instance }})
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description: "Disk is almost full (< 10% left)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# Please add ignored mountpoints in node_exporter parameters like
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# "--collector.filesystem.ignored-mount-points=^/(sys|proc|dev|run)($|/)".
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# Same rule using "node_filesystem_free_bytes" will fire when disk fills for non-root users.
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- alert: HostDiskMayFillIn24Hours
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expr: 'predict_linear(node_filesystem_avail_bytes{fstype!~"^(fuse.*|tmpfs|cifs|nfs)"}[3h], 86400) <= 0 and node_filesystem_avail_bytes > 0'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host disk may fill in 24 hours (instance {{ $labels.instance }})
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description: "Filesystem will likely run out of space within the next 24 hours.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostOutOfInodes
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expr: '(node_filesystem_files_free / node_filesystem_files < .10 and ON (instance, device, mountpoint) node_filesystem_readonly == 0) and node_filesystem_files > 0'
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for: 2m
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labels:
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severity: critical
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annotations:
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summary: Host out of inodes (instance {{ $labels.instance }})
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description: "Disk is almost running out of available inodes (< 10% left)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostFilesystemDeviceError
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expr: 'node_filesystem_device_error{fstype!~"^(fuse.*|tmpfs|cifs|nfs)"} == 1'
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for: 2m
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labels:
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severity: critical
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annotations:
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summary: Host filesystem device error (instance {{ $labels.instance }})
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description: "Error stat-ing the {{ $labels.mountpoint }} filesystem\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostInodesMayFillIn24Hours
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expr: 'predict_linear(node_filesystem_files_free{fstype!~"^(fuse.*|tmpfs|cifs|nfs)"}[1h], 86400) <= 0 and node_filesystem_files_free > 0'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host inodes may fill in 24 hours (instance {{ $labels.instance }})
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description: "Filesystem will likely run out of inodes within the next 24 hours at current write rate\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostUnusualDiskReadLatency
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expr: '(rate(node_disk_read_time_seconds_total[1m]) / rate(node_disk_reads_completed_total[1m]) > 0.1 and rate(node_disk_reads_completed_total[1m]) > 0)'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host unusual disk read latency (instance {{ $labels.instance }})
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description: "Disk latency is growing (read operations > 100ms)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostUnusualDiskWriteLatency
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expr: '(rate(node_disk_write_time_seconds_total[1m]) / rate(node_disk_writes_completed_total[1m]) > 0.1 and rate(node_disk_writes_completed_total[1m]) > 0)'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host unusual disk write latency (instance {{ $labels.instance }})
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description: "Disk latency is growing (write operations > 100ms)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostHighCpuLoad
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expr: '1 - (avg without (cpu) (rate(node_cpu_seconds_total{mode="idle"}[5m]))) > .80'
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for: 10m
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labels:
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severity: warning
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annotations:
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summary: Host high CPU load (instance {{ $labels.instance }})
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description: "CPU load is > 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# You may want to increase the alert manager 'repeat_interval' for this type of alert to daily or weekly
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- alert: HostCpuIsUnderutilized
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expr: '(min without (cpu) (rate(node_cpu_seconds_total{mode="idle"}[1h]))) > 0.8'
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for: 1w
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labels:
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severity: info
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annotations:
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summary: Host CPU is underutilized (instance {{ $labels.instance }})
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description: "CPU load has been < 20% for 1 week. Consider reducing the number of CPUs.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostCpuStealNoisyNeighbor
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expr: 'avg without (cpu) (rate(node_cpu_seconds_total{mode="steal"}[5m])) * 100 > 10'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host CPU steal noisy neighbor (instance {{ $labels.instance }})
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description: "CPU steal is > 10%. A noisy neighbor is killing VM performances or a spot instance may be out of credit.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostCpuHighIowait
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expr: 'avg without (cpu) (rate(node_cpu_seconds_total{mode="iowait"}[5m])) > .10'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host CPU high iowait (instance {{ $labels.instance }})
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description: "CPU iowait > 10%. Your CPU is idling waiting for storage to respond.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostUnusualDiskIo
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expr: 'rate(node_disk_io_time_seconds_total[5m]) > 0.8'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Host unusual disk IO (instance {{ $labels.instance }})
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description: "Disk usage >80%. Check storage for issues or increase IOPS capabilities.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# x2 context switches is an arbitrary number.
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# The alert threshold depends on the nature of the application.
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# Please read: https://github.com/samber/awesome-prometheus-alerts/issues/58
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- alert: HostContextSwitchingHigh
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expr: '(rate(node_context_switches_total[15m])/count without(mode,cpu) (node_cpu_seconds_total{mode="idle"})) / (rate(node_context_switches_total[1d])/count without(mode,cpu) (node_cpu_seconds_total{mode="idle"})) > 2 and rate(node_context_switches_total[1d]) > 0'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host context switching high (instance {{ $labels.instance }})
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description: "Context switching is growing on the node (twice the daily average during the last 15m)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostSwapIsFillingUp
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expr: '((1 - (node_memory_SwapFree_bytes / node_memory_SwapTotal_bytes)) * 100 > 80) and node_memory_SwapTotal_bytes > 0'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host swap is filling up (instance {{ $labels.instance }})
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description: "Swap is filling up (>80%)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostSystemdServiceCrashed
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expr: '(node_systemd_unit_state{state="failed"} == 1)'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host systemd service crashed (instance {{ $labels.instance }})
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description: "systemd service {{ $labels.name }} crashed\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostPhysicalComponentTooHot
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expr: 'node_hwmon_temp_celsius > node_hwmon_temp_max_celsius'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Host physical component too hot (instance {{ $labels.instance }})
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description: "Physical hardware component too hot\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostNodeOvertemperatureAlarm
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expr: '((node_hwmon_temp_crit_alarm_celsius == 1) or (node_hwmon_temp_alarm == 1))'
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Host node overtemperature alarm (instance {{ $labels.instance }})
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description: "Physical node temperature alarm triggered\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# Uses ignoring(state) to handle additional labels on node_md_disks.
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- alert: HostSoftwareRaidInsufficientDrives
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expr: '((node_md_disks_required - ignoring(state) node_md_disks{state="active"}) > 0)'
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Host software RAID insufficient drives (instance {{ $labels.instance }})
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description: "MD RAID array {{ $labels.device }} on {{ $labels.instance }} has insufficient drives remaining.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostSoftwareRaidDiskFailure
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expr: '(node_md_disks{state="failed"} > 0)'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host software RAID disk failure (instance {{ $labels.instance }})
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description: "MD RAID array {{ $labels.device }} on {{ $labels.instance }} needs attention.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostKernelVersionDeviations
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expr: 'changes(node_uname_info[1h]) > 0'
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for: 0m
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labels:
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severity: info
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annotations:
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summary: Host kernel version deviations (instance {{ $labels.instance }})
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description: "Kernel version for {{ $labels.instance }} has changed.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# When a machine runs out of memory, the node exporter can become unresponsive for several minutes. Even if the system takes 15–20 minutes to recover, the alert should still trigger.
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- alert: HostOomKillDetected
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expr: '(delta(node_vmstat_oom_kill[30m]) > 0)'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host OOM kill detected (instance {{ $labels.instance }})
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description: "OOM kill detected\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostEdacCorrectableErrorsDetected
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expr: '(increase(node_edac_correctable_errors_total[1m]) > 0)'
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for: 0m
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labels:
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severity: info
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annotations:
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summary: Host EDAC Correctable Errors detected (instance {{ $labels.instance }})
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description: "Host {{ $labels.instance }} has had {{ printf \"%.0f\" $value }} correctable memory errors reported by EDAC in the last 1 minute.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostEdacUncorrectableErrorsDetected
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expr: '(node_edac_uncorrectable_errors_total > 0)'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Host EDAC Uncorrectable Errors detected (instance {{ $labels.instance }})
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description: "Host {{ $labels.instance }} has had {{ printf \"%.0f\" $value }} uncorrectable memory errors reported by EDAC.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostNetworkReceiveErrors
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expr: '(rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m]) > 0.01) and rate(node_network_receive_packets_total[2m]) > 0'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host Network Receive Errors (instance {{ $labels.instance }})
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description: "Host {{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf \"%.0f\" $value }} receive errors in the last two minutes.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostNetworkTransmitErrors
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expr: '(rate(node_network_transmit_errs_total[2m]) / rate(node_network_transmit_packets_total[2m]) > 0.01) and rate(node_network_transmit_packets_total[2m]) > 0'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host Network Transmit Errors (instance {{ $labels.instance }})
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description: "Host {{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf \"%.0f\" $value }} transmit errors in the last two minutes.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostNetworkBondDegraded
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expr: '((node_bonding_active - node_bonding_slaves) != 0)'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host Network Bond Degraded (instance {{ $labels.instance }})
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description: "Bond \"{{ $labels.device }}\" degraded on \"{{ $labels.instance }}\".\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostConntrackLimit
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expr: '(node_nf_conntrack_entries / node_nf_conntrack_entries_limit > 0.8) and node_nf_conntrack_entries_limit > 0'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Host conntrack limit (instance {{ $labels.instance }})
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description: "The number of conntrack is approaching limit\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostClockSkew
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expr: '((node_timex_offset_seconds > 0.05 and deriv(node_timex_offset_seconds[5m]) >= 0) or (node_timex_offset_seconds < -0.05 and deriv(node_timex_offset_seconds[5m]) <= 0))'
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for: 10m
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labels:
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severity: warning
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annotations:
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summary: Host clock skew (instance {{ $labels.instance }})
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description: "Clock skew detected. Clock is out of sync. Ensure NTP is configured correctly on this host.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: HostClockNotSynchronising
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expr: '(min_over_time(node_timex_sync_status[1m]) == 0 and node_timex_maxerror_seconds >= 16)'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Host clock not synchronising (instance {{ $labels.instance }})
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description: "Clock not synchronising. Ensure NTP is configured on this host.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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