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monitoring(nodes): clamp CPU charts to physical range

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This commit is contained in:
jenkins 2026-08-02 19:36:44 -03:00
parent c0e2b5a2b9
commit 604f91cff3
6 changed files with 14 additions and 11 deletions
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3
scripts/dashboards_render_atlas.py
View File

@ -184,7 +184,8 @@ def scoped_node_expr(base, scope=""):
def node_cpu_expr(scope=""):
idle = 'avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m]))'
base = f"(1 - {idle}) * 100"
# Scrape stalls can briefly report an impossible idle rate after recovery.
base = f"clamp_max(clamp_min((1 - {idle}) * 100, 0), 100)"
return scoped_node_expr(base, scope)

2
scripts/tests/test_dashboards_render_atlas.py
View File

@ -47,6 +47,8 @@ def test_node_filter_and_expr_helpers():
cpu_expr = mod.node_cpu_expr("titan-.*")
mem_expr = mod.node_mem_expr("titan-.*")
assert "node_cpu_seconds_total" in cpu_expr
assert "clamp_max(clamp_min(" in cpu_expr
assert "* 100, 0), 100)" in cpu_expr
assert "node_memory_MemAvailable_bytes" in mem_expr

4
services/monitoring/dashboards/atlas-nodes.json
View File

@ -409,7 +409,7 @@
},
"targets": [
{
"expr": "avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))",
"expr": "avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))",
"refId": "A",
"legendFormat": "{{node}}"
}
@ -489,7 +489,7 @@
},
"targets": [
{
"expr": "(avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"expr": "(avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}"
}

6
services/monitoring/dashboards/atlas-overview.json
View File

@ -518,7 +518,7 @@
},
"targets": [
{
"expr": "label_replace(topk(1, avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))), \"__name__\", \"$1\", \"node\", \"(.*)\")",
"expr": "label_replace(topk(1, avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))), \"__name__\", \"$1\", \"node\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}",
"instant": true
@ -3867,7 +3867,7 @@
},
"targets": [
{
"expr": "(avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"expr": "(avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}"
}
@ -3963,7 +3963,7 @@
},
"targets": [
{
"expr": "(avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"expr": "(avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}"
}

4
services/monitoring/grafana-dashboard-nodes.yaml
View File

@ -418,7 +418,7 @@ data:
},
"targets": [
{
"expr": "avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))",
"expr": "avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))",
"refId": "A",
"legendFormat": "{{node}}"
}
@ -498,7 +498,7 @@ data:
},
"targets": [
{
"expr": "(avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"expr": "(avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}"
}

6
services/monitoring/grafana-dashboard-overview.yaml
View File

@ -527,7 +527,7 @@ data:
},
"targets": [
{
"expr": "label_replace(topk(1, avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))), \"__name__\", \"$1\", \"node\", \"(.*)\")",
"expr": "label_replace(topk(1, avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))), \"__name__\", \"$1\", \"node\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}",
"instant": true
@ -3876,7 +3876,7 @@ data:
},
"targets": [
{
"expr": "(avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"expr": "(avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}"
}
@ -3972,7 +3972,7 @@ data:
},
"targets": [
{
"expr": "(avg by (node) (((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"expr": "(avg by (node) ((clamp_max(clamp_min((1 - avg by (instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))) * 100, 0), 100)) * on(instance) group_left(node) label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh|titan-04|titan-05|titan-06|titan-07|titan-08|titan-09|titan-10|titan-11|titan-20|titan-21|titan-12|titan-13|titan-14|titan-15|titan-16|titan-17|titan-18|titan-19|titan-22|titan-23|titan-24\"}, \"node\", \"$1\", \"nodename\", \"(.*)\"))) * on(node) group_left() label_replace(node_uname_info{nodename=~\"titan-0a|titan-0b|titan-0c|titan-db|titan-jh\"}, \"node\", \"$1\", \"nodename\", \"(.*)\")",
"refId": "A",
"legendFormat": "{{node}}"
}