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Merged
merged 2 commits into from
Sep 2, 2022
Merged

Remove node-exporter alerts #295

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f3727cd
Remove node-exporter alerts
ArthurSens Sep 1, 2022
8afb796
Merge branch 'main' into as/remove-node-alerts
vulkoingim Sep 2, 2022
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13 changes: 13 additions & 0 deletions lib/alert-filter.libsonnet
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,19 @@ local unwatedAlerts = [
'KubeletDown', // Re-added to platform-mixin
'KubeClientErrors',

// From node-exporter
'NodeFilesystemAlmostOutOfSpace', // Re-added to platform-mixin
'NodeFilesystemFilesFillingUp',
'NodeFilesystemAlmostOutOfFiles', // Re-added to platform-mixin
'NodeNetworkReceiveErrs',
'NodeNetworkTransmitErrs',
'NodeTextFileCollectorScrapeError',
'NodeClockSkewDetected',
'NodeClockNotSynchronising',
'NodeRAIDDegraded',
'NodeRAIDDiskFailure',
'NodeFileDescriptorLimit',

// From Alertmanager
'AlertmanagerFailedReload', // Re-added to platform-mixin
'AlertmanagerFailedToSendAlerts', // Re-added to platform-mixin
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194 changes: 1 addition & 193 deletions monitoring-satellite/manifests/kube-prometheus-rules/rules.yaml
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Expand Up @@ -764,199 +764,7 @@ spec:
quantile: "0.5"
record: node_quantile:kubelet_pleg_relist_duration_seconds:histogram_quantile
- name: node-exporter
rules:
- alert: NodeFilesystemAlmostOutOfSpace
annotations:
description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFilesystemAlmostOutOfSpace.md
summary: Filesystem has less than 5% space left.
expr: |
(
node_filesystem_avail_bytes{job="node-exporter",fstype!="shiftfs"} / node_filesystem_size_bytes{job="node-exporter",fstype!="shiftfs"} * 100 < 5
and
node_filesystem_readonly{job="node-exporter",fstype!="shiftfs"} == 0
)
for: 15m
labels:
severity: critical
- alert: NodeFilesystemAlmostOutOfSpace
annotations:
description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available space left.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFilesystemAlmostOutOfSpace.md
summary: Filesystem has less than 3% space left.
expr: |
(
node_filesystem_avail_bytes{job="node-exporter",fstype!="shiftfs"} / node_filesystem_size_bytes{job="node-exporter",fstype!="shiftfs"} * 100 < 3
and
node_filesystem_readonly{job="node-exporter",fstype!="shiftfs"} == 0
)
for: 15m
labels:
severity: critical
- alert: NodeFilesystemFilesFillingUp
annotations:
description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left and is filling up.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFilesystemFilesFillingUp.md
summary: Filesystem is predicted to run out of inodes within the next 24 hours.
expr: |
(
node_filesystem_files_free{job="node-exporter",fstype!="shiftfs"} / node_filesystem_files{job="node-exporter",fstype!="shiftfs"} * 100 < 40
and
predict_linear(node_filesystem_files_free{job="node-exporter",fstype!="shiftfs"}[6h], 24*60*60) < 0
and
node_filesystem_readonly{job="node-exporter",fstype!="shiftfs"} == 0
)
for: 1h
labels:
severity: warning
- alert: NodeFilesystemFilesFillingUp
annotations:
description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left and is filling up fast.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFilesystemFilesFillingUp.md
summary: Filesystem is predicted to run out of inodes within the next 4 hours.
expr: |
(
node_filesystem_files_free{job="node-exporter",fstype!="shiftfs"} / node_filesystem_files{job="node-exporter",fstype!="shiftfs"} * 100 < 20
and
predict_linear(node_filesystem_files_free{job="node-exporter",fstype!="shiftfs"}[6h], 4*60*60) < 0
and
node_filesystem_readonly{job="node-exporter",fstype!="shiftfs"} == 0
)
for: 1h
labels:
severity: critical
- alert: NodeFilesystemAlmostOutOfFiles
annotations:
description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFilesystemAlmostOutOfFiles.md
summary: Filesystem has less than 5% inodes left.
expr: |
(
node_filesystem_files_free{job="node-exporter",fstype!="shiftfs"} / node_filesystem_files{job="node-exporter",fstype!="shiftfs"} * 100 < 5
and
node_filesystem_readonly{job="node-exporter",fstype!="shiftfs"} == 0
)
for: 1h
labels:
severity: warning
- alert: NodeFilesystemAlmostOutOfFiles
annotations:
description: Filesystem on {{ $labels.device }} at {{ $labels.instance }} has only {{ printf "%.2f" $value }}% available inodes left.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFilesystemAlmostOutOfFiles.md
summary: Filesystem has less than 3% inodes left.
expr: |
(
node_filesystem_files_free{job="node-exporter",fstype!="shiftfs"} / node_filesystem_files{job="node-exporter",fstype!="shiftfs"} * 100 < 3
and
node_filesystem_readonly{job="node-exporter",fstype!="shiftfs"} == 0
)
for: 1h
labels:
severity: critical
- alert: NodeNetworkReceiveErrs
annotations:
description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} receive errors in the last two minutes.'
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeNetworkReceiveErrs.md
summary: Network interface is reporting many receive errors.
expr: |
rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m]) > 0.01
for: 1h
labels:
severity: warning
- alert: NodeNetworkTransmitErrs
annotations:
description: '{{ $labels.instance }} interface {{ $labels.device }} has encountered {{ printf "%.0f" $value }} transmit errors in the last two minutes.'
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeNetworkTransmitErrs.md
summary: Network interface is reporting many transmit errors.
expr: |
rate(node_network_transmit_errs_total[2m]) / rate(node_network_transmit_packets_total[2m]) > 0.01
for: 1h
labels:
severity: warning
- alert: NodeTextFileCollectorScrapeError
annotations:
description: Node Exporter text file collector failed to scrape.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeTextFileCollectorScrapeError.md
summary: Node Exporter text file collector failed to scrape.
expr: |
node_textfile_scrape_error{job="node-exporter"} == 1
labels:
severity: warning
- alert: NodeClockSkewDetected
annotations:
description: Clock on {{ $labels.instance }} is out of sync by more than 300s. Ensure NTP is configured correctly on this host.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeClockSkewDetected.md
summary: Clock skew detected.
expr: |
(
node_timex_offset_seconds{job="node-exporter"} > 0.05
and
deriv(node_timex_offset_seconds{job="node-exporter"}[5m]) >= 0
)
or
(
node_timex_offset_seconds{job="node-exporter"} < -0.05
and
deriv(node_timex_offset_seconds{job="node-exporter"}[5m]) <= 0
)
for: 10m
labels:
severity: warning
- alert: NodeClockNotSynchronising
annotations:
description: Clock on {{ $labels.instance }} is not synchronising. Ensure NTP is configured on this host.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeClockNotSynchronising.md
summary: Clock not synchronising.
expr: |
min_over_time(node_timex_sync_status{job="node-exporter"}[5m]) == 0
and
node_timex_maxerror_seconds{job="node-exporter"} >= 16
for: 10m
labels:
severity: warning
- alert: NodeRAIDDegraded
annotations:
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.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeRAIDDegraded.md
summary: RAID Array is degraded
expr: |
node_md_disks_required{job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"} - ignoring (state) (node_md_disks{state="active",job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"}) > 0
for: 15m
labels:
severity: critical
- alert: NodeRAIDDiskFailure
annotations:
description: At least one device in RAID array on {{ $labels.instance }} failed. Array '{{ $labels.device }}' needs attention and possibly a disk swap.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeRAIDDiskFailure.md
summary: Failed device in RAID array
expr: |
node_md_disks{state="failed",job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"} > 0
labels:
severity: warning
- alert: NodeFileDescriptorLimit
annotations:
description: File descriptors limit at {{ $labels.instance }} is currently at {{ printf "%.2f" $value }}%.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFileDescriptorLimit.md
summary: Kernel is predicted to exhaust file descriptors limit soon.
expr: |
(
node_filefd_allocated{job="node-exporter"} * 100 / node_filefd_maximum{job="node-exporter"} > 70
)
for: 15m
labels:
severity: warning
- alert: NodeFileDescriptorLimit
annotations:
description: File descriptors limit at {{ $labels.instance }} is currently at {{ printf "%.2f" $value }}%.
runbook_url: https://github.com/gitpod-io/runbooks/blob/main/runbooks/NodeFileDescriptorLimit.md
summary: Kernel is predicted to exhaust file descriptors limit soon.
expr: |
(
node_filefd_allocated{job="node-exporter"} * 100 / node_filefd_maximum{job="node-exporter"} > 90
)
for: 15m
labels:
severity: critical
rules: []
- name: node-exporter.rules
rules:
- expr: |
Expand Down