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monitoring: increase high_cpu_load duration for nix-cache01 to 2h

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nix-cache01 regularly hits high CPU during nix builds, causing flappy
alerts. Keep the 15m threshold for all other hosts.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Torjus Håkestad
2026-02-05 02:28:48 +01:00
parent 64f2688349
commit 28b8d7c115
1 changed files with 9 additions and 1 deletions
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10
services/monitoring/rules.yml
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@@ -18,13 +18,21 @@ groups:
summary: "Disk space low on {{ $labels.instance }}"
description: "Disk space is low on {{ $labels.instance }}. Please check."
- alert: high_cpu_load
expr: max(node_load5{}) by (instance) > (count by (instance)(node_cpu_seconds_total{mode="idle"}) * 0.7)
expr: max(node_load5{instance!="nix-cache01.home.2rjus.net:9100"}) by (instance) > (count by (instance)(node_cpu_seconds_total{instance!="nix-cache01.home.2rjus.net:9100", mode="idle"}) * 0.7)
for: 15m
labels:
severity: warning
annotations:
summary: "High CPU load on {{ $labels.instance }}"
description: "CPU load is high on {{ $labels.instance }}. Please check."
- alert: high_cpu_load
expr: max(node_load5{instance="nix-cache01.home.2rjus.net:9100"}) by (instance) > (count by (instance)(node_cpu_seconds_total{instance="nix-cache01.home.2rjus.net:9100", mode="idle"}) * 0.7)
for: 2h
labels:
severity: warning
annotations:
summary: "High CPU load on {{ $labels.instance }}"
description: "CPU load is high on {{ $labels.instance }}. Please check."
- alert: low_memory
expr: node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes * 100 < 10
for: 2m