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1961128cf175b35514f3817bf479db05f8f89604
clickstream-ch-kafka-supers…/configs/grafana/provisioning/dashboards/generator-overview.json
T
ddadminandDmitry Dementiev d97be5fa56 feat(monitoring): добавлен дашборд Grafana для мониторинга generator 
- Зачем:
  - нужна визуализация метрик generator в реальном времени
  - Prometheus job уже настроен, не хватает Grafana dashboard
- Что:
  - добавлен provisioning-файл dashboards/generator-overview.json
  - 6 разделов: Overview, Events by Topic, Errors, Tick Statistics, Status, Info
  - Overview: Total Events/min (все 4 топика), Tick Duration (p50/p99)
  - Events by Topic: bar chart Events per Hour, Events Rate, Total Events
  - Errors: Total Errors, Error Rate, Errors by Topic (с 'or on() vector(0)')
  - Tick Statistics: Duration Distribution, Hour Factor (text), Tick Interval (text)
  - Status: Generator Status (threshold 120s), Generator Health (heartbeat), Time Since Last Tick
  - Info: команды и предупреждения о хардкоде GEN_TICK_SECONDS=5s
  - исправлены панели ошибок с 'or on() vector(0)' для корректного отображения 0
  - заменен heatmap на bar chart для стабильности
  - добавлены пояснения про Events/min = сумма 4 связанных топиков
  - Hour Factor синхронизирован с кодом генератора (00-05/09-18)
  - Generator Health: переименовано из State Management с value mappings
  - обновлены docs/OPERATIONS.md и generator/README.md
  - удален устаревший plans/generator-monitoring-plan.md
- Проверка:
  - дашборд открывается на http://localhost:3000/d/generator-overview
  - все панели отображают данные корректно (протестировано через Playwright)
  - ошибки показывают 0 вместо No data
  - Events/min корректно отображает сумму всех 4 топиков (~800-1000/min)
2026-06-09 17:27:17 +03:00

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{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": {
"type": "grafana",
"uid": "-- Grafana --"
},
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"description": "Обзор метрик Generator — автономного генератора событий для Kafka",
"editable": true,
"fiscalYearStartMonth": 0,
"graphTooltip": 0,
"id": null,
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"title": "Total Events/min (all 4 topics)",
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"w": 24,
"x": 0,
"y": 32
},
"id": 18,
"panels": [],
"title": "Status",
"type": "row"
},
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [
{
"options": {
"0": {
"color": "red",
"index": 0,
"text": "DISABLED"
},
"1": {
"color": "green",
"index": 1,
"text": "ENABLED"
}
},
"type": "value"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red"
},
{
"color": "green",
"value": 1
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 8,
"x": 0,
"y": 33
},
"id": 19,
"options": {
"colorMode": "background",
"graphMode": "none",
"justifyMode": "center",
"orientation": "auto",
"percentChangeColorMode": "standard",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"showPercentChange": false,
"textMode": "value"
},
"pluginVersion": "11.0.8",
"targets": [
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"expr": "(time() - generator_last_success_timestamp) \u003c bool 120",
"refId": "A"
}
],
"title": "Generator Status",
"type": "stat"
},
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [
{
"options": {
"0": {
"color": "red",
"index": 0,
"text": "DEGRADED"
},
"1": {
"color": "green",
"index": 1,
"text": "ACTIVE"
}
},
"type": "value"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red"
},
{
"color": "green",
"value": 1
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 8,
"x": 8,
"y": 33
},
"id": 20,
"options": {
"colorMode": "background",
"graphMode": "none",
"justifyMode": "center",
"orientation": "auto",
"percentChangeColorMode": "standard",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"showPercentChange": false,
"textMode": "value"
},
"pluginVersion": "11.0.8",
"targets": [
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"expr": "(time() - generator_last_success_timestamp) < bool 300",
"refId": "A"
}
],
"title": "Generator Health (Heartbeat)",
"type": "stat"
},
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "blue"
}
]
},
"unit": "s"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 8,
"x": 16,
"y": 33
},
"id": 21,
"options": {
"colorMode": "value",
"graphMode": "none",
"justifyMode": "center",
"orientation": "auto",
"percentChangeColorMode": "standard",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"showPercentChange": false,
"textMode": "auto"
},
"pluginVersion": "11.0.8",
"targets": [
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"expr": "time() - generator_last_success_timestamp",
"refId": "A"
}
],
"title": "Time Since Last Tick",
"type": "stat"
},
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"gridPos": {
"h": 4,
"w": 24,
"x": 0,
"y": 37
},
"id": 22,
"options": {
"code": {
"language": "plaintext",
"showLineNumbers": false,
"showMiniMap": false
},
"content": "**Generator Info**\n\n- **Topics:** browser_events, location_events, device_events, geo_events (4 linked topics)\n- **Events/min:** Total = sum of all 4 topics (each tick generates events across all topics)\n- **Tick Interval:** 5s (configurable via GEN_TICK_SECONDS)\n- **Target Rate:** ~200 events/min per topic × 4 topics = ~800 total events/min\n- **Hour Factor:** Night (00-05): 0.7x | Peak (09-18): 1.2x | Other: 1.0x\n- **State:** Saved to Kafka topic 'generator_state'\n- **History:** Batch history in 'generator_batch_history'\n- **⚠️ Note:** This dashboard is optimized for GEN_TICK_SECONDS=5s. Changing the tick interval will affect metrics accuracy (Events per Tick formula, Status thresholds). Generator Health shows "alive" status only (last successful tick), not state persistence. Check logs for state save errors.\n\n**Useful Commands:**\n```bash\n# View generator logs\nmake generator-logs\n\n# Check metrics endpoint\ncurl http://localhost:9109/metrics\n\n# Read batch history\ndocker compose exec kafka kafka-console-consumer \\\n --bootstrap-server localhost:9092 \\\n --topic generator_batch_history \\\n --from-beginning | head -20\n```",
"mode": "markdown"
},
"pluginVersion": "11.0.8",
"targets": [
{
"datasource": {
"type": "prometheus",
"uid": "prometheus_uid"
},
"refId": "A"
}
],
"title": "Info & Commands",
"type": "text"
}
],
"refresh": "5s",
"schemaVersion": 39,
"tags": [
"generator",
"kafka",
"monitoring"
],
"templating": {
"list": []
},
"time": {
"from": "now-1h",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"5s",
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
]
},
"timezone": "browser",
"title": "Generator Overview",
"uid": "generator-overview",
"version": 1,
"weekStart": ""
}
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