Files
nix-config-ryan4yin/hosts/idols-ruby/prometheus/alert_rules/node-exporter.yml

509 lines
22 KiB
YAML

groups:
- name: NodeExporter
rules:
- alert: HostOutOfMemory
expr:
'(node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes * 100 < 10) * on(instance)
group_left (nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host out of memory (instance {{ $labels.instance }})
description:
"Node memory is filling up (< 10% left)\n VALUE = {{ $value }}\n LABELS = {{ $labels
}}"
- alert: HostMemoryUnderMemoryPressure
expr:
'(rate(node_vmstat_pgmajfault[1m]) > 1000) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host memory under memory pressure (instance {{ $labels.instance }})
description:
"The node is under heavy memory pressure. High rate of major page faults\n VALUE = {{
$value }}\n LABELS = {{ $labels }}"
- alert: HostMemoryIsUnderutilized
expr:
'(100 - (avg_over_time(node_memory_MemAvailable_bytes[30m]) / node_memory_MemTotal_bytes *
100) < 20) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 1w
labels:
severity: info
annotations:
summary: Host Memory is underutilized (instance {{ $labels.instance }})
description:
"Node memory is < 20% for 1 week. Consider reducing memory space. (instance {{
$labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostUnusualNetworkThroughputIn
expr:
'(sum by (instance) (rate(node_network_receive_bytes_total[2m])) / 1024 / 1024 > 100) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 5m
labels:
severity: warning
annotations:
summary: Host unusual network throughput in (instance {{ $labels.instance }})
description:
"Host network interfaces are probably receiving too much data (> 100 MB/s)\n VALUE = {{
$value }}\n LABELS = {{ $labels }}"
- alert: HostUnusualNetworkThroughputOut
expr:
'(sum by (instance) (rate(node_network_transmit_bytes_total[2m])) / 1024 / 1024 > 100) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 5m
labels:
severity: warning
annotations:
summary: Host unusual network throughput out (instance {{ $labels.instance }})
description:
"Host network interfaces are probably sending too much data (> 100 MB/s)\n VALUE = {{
$value }}\n LABELS = {{ $labels }}"
- alert: HostUnusualDiskReadRate
expr:
'(sum by (instance) (rate(node_disk_read_bytes_total[2m])) / 1024 / 1024 > 50) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 5m
labels:
severity: warning
annotations:
summary: Host unusual disk read rate (instance {{ $labels.instance }})
description:
"Disk is probably reading too much data (> 50 MB/s)\n VALUE = {{ $value }}\n LABELS =
{{ $labels }}"
- alert: HostUnusualDiskWriteRate
expr:
'(sum by (instance) (rate(node_disk_written_bytes_total[2m])) / 1024 / 1024 > 50) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host unusual disk write rate (instance {{ $labels.instance }})
description:
"Disk is probably writing too much data (> 50 MB/s)\n VALUE = {{ $value }}\n LABELS =
{{ $labels }}"
- alert: HostOutOfDiskSpace
expr:
'((node_filesystem_avail_bytes * 100) / node_filesystem_size_bytes < 10 and ON (instance,
device, mountpoint) node_filesystem_readonly == 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host out of disk space (instance {{ $labels.instance }})
description:
"Disk is almost full (< 10% left)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostDiskWillFillIn24Hours
expr:
'((node_filesystem_avail_bytes * 100) / node_filesystem_size_bytes < 10 and ON (instance,
device, mountpoint) predict_linear(node_filesystem_avail_bytes{fstype!~"tmpfs"}[1h], 24 *
3600) < 0 and ON (instance, device, mountpoint) node_filesystem_readonly == 0) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host disk will fill in 24 hours (instance {{ $labels.instance }})
description:
"Filesystem is predicted to run out of space within the next 24 hours at current write
rate\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostOutOfInodes
expr:
'(node_filesystem_files_free{fstype!="msdosfs"} / node_filesystem_files{fstype!="msdosfs"}
* 100 < 10 and ON (instance, device, mountpoint) node_filesystem_readonly == 0) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host out of inodes (instance {{ $labels.instance }})
description:
"Disk is almost running out of available inodes (< 10% left)\n VALUE = {{ $value
}}\n LABELS = {{ $labels }}"
- alert: HostFilesystemDeviceError
expr: "node_filesystem_device_error == 1"
for: 0m
labels:
severity: critical
annotations:
summary: Host filesystem device error (instance {{ $labels.instance }})
description:
"{{ $labels.instance }}: Device error with the {{ $labels.mountpoint }}
filesystem\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostInodesWillFillIn24Hours
expr:
'(node_filesystem_files_free{fstype!="msdosfs"} / node_filesystem_files{fstype!="msdosfs"}
* 100 < 10 and predict_linear(node_filesystem_files_free{fstype!="msdosfs"}[1h], 24 *
3600) < 0 and ON (instance, device, mountpoint)
node_filesystem_readonly{fstype!="msdosfs"} == 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host inodes will fill in 24 hours (instance {{ $labels.instance }})
description:
"Filesystem is predicted to run out of inodes within the next 24 hours at current write
rate\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostUnusualDiskReadLatency
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) * on(instance) group_left
(nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host unusual disk read latency (instance {{ $labels.instance }})
description:
"Disk latency is growing (read operations > 100ms)\n VALUE = {{ $value }}\n LABELS =
{{ $labels }}"
- alert: HostUnusualDiskWriteLatency
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) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host unusual disk write latency (instance {{ $labels.instance }})
description:
"Disk latency is growing (write operations > 100ms)\n VALUE = {{ $value }}\n LABELS =
{{ $labels }}"
- alert: HostHighCpuLoad
expr:
'(sum by (instance) (avg by (mode, instance)
(rate(node_cpu_seconds_total{mode!="idle"}[2m]))) > 0.8) * on(instance) group_left
(nodename) node_uname_info{nodename=~".+"}'
for: 10m
labels:
severity: warning
annotations:
summary: Host high CPU load (instance {{ $labels.instance }})
description: "CPU load is > 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostCpuIsUnderutilized
expr:
'(100 - (rate(node_cpu_seconds_total{mode="idle"}[30m]) * 100) < 20) * on(instance)
group_left (nodename) node_uname_info{nodename=~".+"}'
for: 1w
labels:
severity: info
annotations:
summary: Host CPU is underutilized (instance {{ $labels.instance }})
description:
"CPU load is < 20% for 1 week. Consider reducing the number of CPUs.\n VALUE = {{
$value }}\n LABELS = {{ $labels }}"
- alert: HostCpuStealNoisyNeighbor
expr:
'(avg by(instance) (rate(node_cpu_seconds_total{mode="steal"}[5m])) * 100 > 10) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: warning
annotations:
summary: Host CPU steal noisy neighbor (instance {{ $labels.instance }})
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 }}"
- alert: HostCpuHighIowait
expr:
'(avg by (instance) (rate(node_cpu_seconds_total{mode="iowait"}[5m])) * 100 > 10) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: warning
annotations:
summary: Host CPU high iowait (instance {{ $labels.instance }})
description:
"CPU iowait > 10%. A high iowait means that you are disk or network bound.\n VALUE = {{
$value }}\n LABELS = {{ $labels }}"
- alert: HostUnusualDiskIo
expr:
'(rate(node_disk_io_time_seconds_total[1m]) > 0.5) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 5m
labels:
severity: warning
annotations:
summary: Host unusual disk IO (instance {{ $labels.instance }})
description:
"Time spent in IO is too high on {{ $labels.instance }}. Check storage for
issues.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostContextSwitching
expr:
'((rate(node_context_switches_total[5m])) / (count without(cpu, mode)
(node_cpu_seconds_total{mode="idle"})) > 10000) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: warning
annotations:
summary: Host context switching (instance {{ $labels.instance }})
description:
"Context switching is growing on the node (> 10000 / CPU / s)\n VALUE = {{ $value
}}\n LABELS = {{ $labels }}"
- alert: HostSwapIsFillingUp
expr:
'((1 - (node_memory_SwapFree_bytes / node_memory_SwapTotal_bytes)) * 100 > 80) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host swap is filling up (instance {{ $labels.instance }})
description: "Swap is filling up (>80%)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostSystemdServiceCrashed
expr:
'(node_systemd_unit_state{state="failed"} == 1) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: warning
annotations:
summary: Host systemd service crashed (instance {{ $labels.instance }})
description: "systemd service crashed\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostPhysicalComponentTooHot
expr:
'((node_hwmon_temp_celsius * ignoring(label) group_left(instance, job, node, sensor)
node_hwmon_sensor_label{label!="tctl"} > 75)) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 5m
labels:
severity: warning
annotations:
summary: Host physical component too hot (instance {{ $labels.instance }})
description:
"Physical hardware component too hot\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostNodeOvertemperatureAlarm
expr:
'(node_hwmon_temp_crit_alarm_celsius == 1) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: critical
annotations:
summary: Host node overtemperature alarm (instance {{ $labels.instance }})
description:
"Physical node temperature alarm triggered\n VALUE = {{ $value }}\n LABELS = {{
$labels }}"
- alert: HostRaidArrayGotInactive
expr:
'(node_md_state{state="inactive"} > 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: critical
annotations:
summary: Host RAID array got inactive (instance {{ $labels.instance }})
description:
"RAID array {{ $labels.device }} is in a degraded state due to one or more disk
failures. The number of spare drives is insufficient to fix the issue
automatically.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostRaidDiskFailure
expr:
'(node_md_disks{state="failed"} > 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host RAID disk failure (instance {{ $labels.instance }})
description:
"At least one device in RAID array on {{ $labels.instance }} failed. Array {{
$labels.md_device }} needs attention and possibly a disk swap\n VALUE = {{ $value
}}\n LABELS = {{ $labels }}"
- alert: HostKernelVersionDeviations
expr:
'(count(sum(label_replace(node_uname_info, "kernel", "$1", "release",
"([0-9]+.[0-9]+.[0-9]+).*")) by (kernel)) > 1) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 6h
labels:
severity: warning
annotations:
summary: Host kernel version deviations (instance {{ $labels.instance }})
description:
"Different kernel versions are running\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostOomKillDetected
expr:
'(increase(node_vmstat_oom_kill[1m]) > 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: warning
annotations:
summary: Host OOM kill detected (instance {{ $labels.instance }})
description: "OOM kill detected\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostEdacCorrectableErrorsDetected
expr:
'(increase(node_edac_correctable_errors_total[1m]) > 0) * on(instance) group_left
(nodename) node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: info
annotations:
summary: Host EDAC Correctable Errors detected (instance {{ $labels.instance }})
description:
"Host {{ $labels.instance }} has had {{ printf \"%.0f\" $value }} correctable memory
errors reported by EDAC in the last 5 minutes.\n VALUE = {{ $value }}\n LABELS = {{
$labels }}"
- alert: HostEdacUncorrectableErrorsDetected
expr:
'(node_edac_uncorrectable_errors_total > 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 0m
labels:
severity: warning
annotations:
summary: Host EDAC Uncorrectable Errors detected (instance {{ $labels.instance }})
description:
"Host {{ $labels.instance }} has had {{ printf \"%.0f\" $value }} uncorrectable memory
errors reported by EDAC in the last 5 minutes.\n VALUE = {{ $value }}\n LABELS = {{
$labels }}"
- alert: HostNetworkReceiveErrors
expr:
'(rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m])
> 0.01) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host Network Receive Errors (instance {{ $labels.instance }})
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 }}"
- alert: HostNetworkTransmitErrors
expr:
'(rate(node_network_transmit_errs_total[2m]) /
rate(node_network_transmit_packets_total[2m]) > 0.01) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host Network Transmit Errors (instance {{ $labels.instance }})
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 }}"
- alert: HostNetworkInterfaceSaturated
expr:
'((rate(node_network_receive_bytes_total{device!~"^tap.*|^vnet.*|^veth.*|^tun.*"}[1m]) +
rate(node_network_transmit_bytes_total{device!~"^tap.*|^vnet.*|^veth.*|^tun.*"}[1m])) /
node_network_speed_bytes{device!~"^tap.*|^vnet.*|^veth.*|^tun.*"} > 0.8 < 10000) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 1m
labels:
severity: warning
annotations:
summary: Host Network Interface Saturated (instance {{ $labels.instance }})
description:
"The network interface \"{{ $labels.device }}\" on \"{{ $labels.instance }}\" is getting
overloaded.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostNetworkBondDegraded
expr:
'((node_bonding_active - node_bonding_slaves) != 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host Network Bond Degraded (instance {{ $labels.instance }})
description:
"Bond \"{{ $labels.device }}\" degraded on \"{{ $labels.instance }}\".\n VALUE = {{
$value }}\n LABELS = {{ $labels }}"
- alert: HostConntrackLimit
expr:
'(node_nf_conntrack_entries / node_nf_conntrack_entries_limit > 0.8) * on(instance)
group_left (nodename) node_uname_info{nodename=~".+"}'
for: 5m
labels:
severity: warning
annotations:
summary: Host conntrack limit (instance {{ $labels.instance }})
description:
"The number of conntrack is approaching limit\n VALUE = {{ $value }}\n LABELS = {{
$labels }}"
- alert: HostClockSkew
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)) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 10m
labels:
severity: warning
annotations:
summary: Host clock skew (instance {{ $labels.instance }})
description:
"Clock skew detected. Clock is out of sync. Ensure NTP is configured correctly on this
host.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: HostClockNotSynchronising
expr:
'(min_over_time(node_timex_sync_status[1m]) == 0 and node_timex_maxerror_seconds >= 16) *
on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
for: 2m
labels:
severity: warning
annotations:
summary: Host clock not synchronising (instance {{ $labels.instance }})
description:
"Clock not synchronising. Ensure NTP is configured on this host.\n VALUE = {{ $value
}}\n LABELS = {{ $labels }}"
- alert: HostRequiresReboot
expr:
'(node_reboot_required > 0) * on(instance) group_left (nodename)
node_uname_info{nodename=~".+"}'
for: 4h
labels:
severity: info
annotations:
summary: Host requires reboot (instance {{ $labels.instance }})
description:
"{{ $labels.instance }} requires a reboot.\n VALUE = {{ $value }}\n LABELS = {{
$labels }}"