[ansible-taler-exchange] branch master updated: these rules make no sense for us: not a VM, cannot reduce RAM or CPUs

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grothoff pushed a commit to branch master
in repository ansible-taler-exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 797e796  these rules make no sense for us: not a VM, cannot reduce RAM 
or CPUs
797e796 is described below

commit 797e79663dbb4e3e88c18536e4bc7dfdb978995f
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Tue Jun 3 01:22:26 2025 +0200

    these rules make no sense for us: not a VM, cannot reduce RAM or CPUs
---
 .../files/etc/prometheus/node-exporter-rules.yml       | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/roles/monitoring/files/etc/prometheus/node-exporter-rules.yml 
b/roles/monitoring/files/etc/prometheus/node-exporter-rules.yml
index cd3bac7..d1e2965 100644
--- a/roles/monitoring/files/etc/prometheus/node-exporter-rules.yml
+++ b/roles/monitoring/files/etc/prometheus/node-exporter-rules.yml
@@ -22,15 +22,6 @@ groups:
         summary: Host memory under memory pressure (instance {{ 
$labels.instance }})
         description: "The node is under heavy memory pressure. High rate of 
loading memory pages from disk.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels 
}}"
 
-    - alert: HostMemoryIsUnderutilized
-      expr: 'min_over_time(node_memory_MemFree_bytes[1w]) > 
node_memory_MemTotal_bytes * .8'
-      for: 0m
-      labels:
-        severity: info
-      annotations:
-        summary: Host Memory is underutilized (instance {{ $labels.instance }})
-        description: "Node memory usage is < 20% for 1 week. Consider reducing 
memory space. (instance {{ $labels.instance }})\n  VALUE = {{ $value }}\n  
LABELS = {{ $labels }}"
-
     - alert: HostUnusualNetworkThroughputIn
       expr: '((rate(node_network_receive_bytes_total[5m]) / on(instance, 
device) node_network_speed_bytes) > .80)'
       for: 0m
@@ -130,15 +121,6 @@ groups:
         summary: Host high CPU load (instance {{ $labels.instance }})
         description: "CPU load is > 80%\n  VALUE = {{ $value }}\n  LABELS = {{ 
$labels }}"
 
-    - alert: HostCpuIsUnderutilized
-      expr: '(min by (instance) 
(rate(node_cpu_seconds_total{mode="idle"}[1h]))) > 0.8'
-      for: 1w
-      labels:
-        severity: info
-      annotations:
-        summary: Host CPU is underutilized (instance {{ $labels.instance }})
-        description: "CPU load has been < 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'
       for: 0m

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