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feat: add Grafana panels for lease and Redis health #64

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Merged
yashdotdev13 merged 1 commit into from
Oct 23, 2026
Merged

feat: add Grafana panels for lease and Redis health #64

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263 changes: 263 additions & 0 deletions monitoring/grafana/dashboards/traffic-control.json
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,269 @@
"legendFormat": "{{instance}} - {{result}}"
}
]
},
{
"id": 1,
"type": "row",
"title": "Leases",
"collapsed": false,
"panels": [],
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 24
}
},
{
"id": 2,
"type": "timeseries",
"title": "Lease Allocation Success Rate",
"description": "Share of lease allocation attempts that acquired a lease, per gateway instance. Empty (NaN) while an instance makes no attempts.",
"gridPos": {
"h": 8,
"w": 9,
"x": 0,
"y": 25
},
"fieldConfig": {
"defaults": {
"unit": "percentunit",
"min": 0,
"max": 1
},
"overrides": []
},
"targets": [
{
"refId": "A",
"expr": "sum by (instance) (rate(traffic_control_lease_allocations_total{result=\"success\"}[1m])) / sum by (instance) (rate(traffic_control_lease_allocations_total{result=\"attempt\"}[1m]))",
"legendFormat": "{{instance}}"
}
]
},
{
"id": 3,
"type": "timeseries",
"title": "Lease Allocation Failures",
"description": "Lease allocation attempts per second where Redis reported insufficient global capacity, per gateway instance.",
"gridPos": {
"h": 8,
"w": 9,
"x": 9,
"y": 25
},
"fieldConfig": {
"defaults": {
"unit": "reqps"
},
"overrides": []
},
"targets": [
{
"refId": "A",
"expr": "sum by (instance) (rate(traffic_control_lease_allocations_total{result=\"failure\"}[1m]))",
"legendFormat": "{{instance}}"
}
]
},
{
"id": 4,
"type": "stat",
"title": "Quota Exhaustion (fleet, last 5m)",
"description": "Local quota exhaustion events across all gateway instances in the last 5 minutes.",
"gridPos": {
"h": 8,
"w": 6,
"x": 18,
"y": 25
},
"fieldConfig": {
"defaults": {
"unit": "short",
"decimals": 0
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": ["lastNotNull"],
"fields": "",
"values": false
}
},
"targets": [
{
"refId": "A",
"expr": "sum(increase(traffic_control_quota_exhausted_total[5m]))",
"legendFormat": "fleet"
}
]
},
{
"id": 5,
"type": "row",
"title": "Decision latency",
"collapsed": false,
"panels": [],
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 33
}
},
{
"id": 6,
"type": "timeseries",
"title": "Decision Latency p50 / p95 / p99",
"description": "Client-side quantiles published by each gateway instance. Shown per instance because quantiles cannot be averaged or summed across instances.",
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 34
},
"fieldConfig": {
"defaults": {
"unit": "s"
},
"overrides": []
},
"targets": [
{
"refId": "A",
"expr": "max by (instance, quantile) (traffic_control_decision_duration_seconds{quantile=~\"0.5|0.95|0.99\"})",
"legendFormat": "{{instance}} p{{quantile}}"
}
]
},
{
"id": 7,
"type": "timeseries",
"title": "Decision Latency Max",
"description": "Maximum decision duration per gateway instance over Micrometer's recent window.",
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 34
},
"fieldConfig": {
"defaults": {
"unit": "s"
},
"overrides": []
},
"targets": [
{
"refId": "A",
"expr": "max by (instance) (traffic_control_decision_duration_seconds_max)",
"legendFormat": "{{instance}}"
}
]
},
{
"id": 8,
"type": "row",
"title": "Instance & Redis health",
"collapsed": false,
"panels": [],
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 42
}
},
{
"id": 9,
"type": "stat",
"title": "Gateway Up",
"description": "Prometheus scrape status of each gateway instance.",
"gridPos": {
"h": 8,
"w": 8,
"x": 0,
"y": 43
},
"fieldConfig": {
"defaults": {
"unit": "short",
"mappings": [
{
"type": "value",
"options": {
"0": {
"text": "DOWN",
"color": "red"
},
"1": {
"text": "UP",
"color": "green"
}
}
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "green",
"value": 1
}
]
}
},
"overrides": []
},
"options": {
"colorMode": "background",
"textMode": "value_and_name",
"reduceOptions": {
"calcs": ["lastNotNull"],
"fields": "",
"values": false
}
},
"targets": [
{
"refId": "A",
"expr": "up{job=\"traffic-control-gateways\"}",
"legendFormat": "{{instance}}"
}
]
},
{
"id": 10,
"type": "timeseries",
"title": "Lease Allocation Failure Ratio",
"description": "Share of lease allocation attempts where Redis answered but reported insufficient global capacity, per gateway instance. This reflects capacity exhaustion, not Redis availability: no Redis health metric is currently exported, and Redis connection errors are not counted as failures. Empty (NaN) while an instance makes no attempts.",
"gridPos": {
"h": 8,
"w": 16,
"x": 8,
"y": 43
},
"fieldConfig": {
"defaults": {
"unit": "percentunit",
"min": 0,
"max": 1
},
"overrides": []
},
"targets": [
{
"refId": "A",
"expr": "sum by (instance) (rate(traffic_control_lease_allocations_total{result=\"failure\"}[1m])) / sum by (instance) (rate(traffic_control_lease_allocations_total{result=\"attempt\"}[1m]))",
"legendFormat": "{{instance}}"
}
]
}
],
"schemaVersion": 39,
Expand Down
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