Grafana dashboard: Yabeda::Puma::Plugin
Description: Sample dashboard for puma web-server monitoring tool


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  "iteration": 1589902045676,
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      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 10,
        "w": 24,
        "x": 0,
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      "hiddenSeries": false,
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      "legend": {
        "avg": false,
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      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
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      "targets": [
        {
          "expr": "sum(puma_backlog)",
          "interval": "",
          "legendFormat": "Waiting requests",
          "refId": "A"
        }
      ],
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      "yaxis": {
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    },
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      "fill": 1,
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      "gridPos": {
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        "x": 0,
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      "legend": {
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      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "sum(puma_running - puma_pool_capacity)",
          "format": "time_series",
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "Busy threads",
          "refId": "A"
        },
        {
          "expr": "sum(puma_running)",
          "interval": "",
          "legendFormat": "Running threads",
          "refId": "B"
        },
        {
          "expr": "sum(puma_max_threads)",
          "interval": "",
          "legendFormat": "Maximum threads",
          "refId": "C"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Thread pool capacity",
      "tooltip": {
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        "hideEmpty": false,
        "hideZero": false,
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      "lines": true,
      "linewidth": 2,
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      "stack": false,
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      "targets": [
        {
          "expr": "sum(puma_workers)",
          "format": "time_series",
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "Total worker processes",
          "refId": "A"
        },
        {
          "expr": "sum(puma_workers - puma_booted_workers)",
          "format": "time_series",
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "Booting (not ready) processes",
          "refId": "B"
        },
        {
          "expr": "sum(puma_old_workers)",
          "interval": "",
          "legendFormat": "Old worker processes",
          "refId": "C"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Worker processes",
      "tooltip": {
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        "sort": 0,
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      },
      "type": "graph",
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          "show": false
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      ],
      "yaxis": {
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        "alignLevel": null
      }
    }
  ],
  "refresh": "30s",
  "schemaVersion": 22,
  "style": "dark",
  "tags": [],
  "templating": {
    "list": []
  },
  "time": {
    "from": "now-6h",
    "to": "now"
  },
  "timepicker": {
    "refresh_intervals": [
      "5s",
      "10s",
      "30s",
      "1m",
      "5m",
      "15m",
      "30m",
      "1h",
      "2h",
      "1d"
    ],
    "time_options": [
      "5m",
      "15m",
      "1h",
      "6h",
      "12h",
      "24h",
      "2d",
      "7d",
      "30d"
    ]
  },
  "timezone": "",
  "title": "Yabeda::Puma::Plugin",
  "uid": "yabeda-puma",
  "variables": {
    "list": []
  },
  "version": 2,
  "description": "Sample dashboard for puma web-server monitoring tool"
}