{
  "__inputs": [
    {
      "name": "DS_PROMETHEUS",
      "label": "Prometheus",
      "type": "datasource",
      "pluginId": "prometheus",
      "pluginName": "Prometheus"
    }
  ],
  "title": "notefeed",
  "uid": "notefeed-metrics",
  "schemaVersion": 39,
  "version": 1,
  "refresh": "1m",
  "time": {
    "from": "now-24h",
    "to": "now"
  },
  "panels": [
    {
      "id": 1,
      "type": "timeseries",
      "title": "feed_page p95 by feed size",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "h": 8,
        "w": 12,
        "x": 0,
        "y": 0
      },
      "fieldConfig": {
        "defaults": {
          "unit": "s"
        },
        "overrides": []
      },
      "targets": [
        {
          "refId": "A",
          "expr": "histogram_quantile(0.95, sum by (le, feed_size) (rate(notefeed_request_duration_seconds_bucket{kind=\"feed_page\"}[$__rate_interval])))",
          "legendFormat": "{{feed_size}}"
        }
      ]
    },
    {
      "id": 2,
      "type": "timeseries",
      "title": "Requests per second by kind",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "h": 8,
        "w": 12,
        "x": 12,
        "y": 0
      },
      "fieldConfig": {
        "defaults": {
          "unit": "reqps"
        },
        "overrides": []
      },
      "targets": [
        {
          "refId": "A",
          "expr": "sum by (kind) (rate(notefeed_request_duration_seconds_count[$__rate_interval]))",
          "legendFormat": "{{kind}}"
        }
      ]
    },
    {
      "id": 3,
      "type": "timeseries",
      "title": "Directory reads per request",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "h": 8,
        "w": 12,
        "x": 0,
        "y": 8
      },
      "fieldConfig": {
        "defaults": {
          "unit": "short"
        },
        "overrides": []
      },
      "targets": [
        {
          "refId": "A",
          "expr": "sum by (kind) (rate(notefeed_request_dir_reads_sum[$__rate_interval])) / sum by (kind) (rate(notefeed_request_dir_reads_count[$__rate_interval]))",
          "legendFormat": "{{kind}}"
        }
      ]
    },
    {
      "id": 4,
      "type": "timeseries",
      "title": "File reads per request",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "h": 8,
        "w": 12,
        "x": 12,
        "y": 8
      },
      "fieldConfig": {
        "defaults": {
          "unit": "short"
        },
        "overrides": []
      },
      "targets": [
        {
          "refId": "A",
          "expr": "sum by (kind) (rate(notefeed_request_file_reads_sum[$__rate_interval])) / sum by (kind) (rate(notefeed_request_file_reads_count[$__rate_interval]))",
          "legendFormat": "{{kind}}"
        }
      ]
    },
    {
      "id": 5,
      "type": "timeseries",
      "title": "Picture worker: refused for time, waiting",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "h": 8,
        "w": 12,
        "x": 0,
        "y": 16
      },
      "fieldConfig": {
        "defaults": {
          "unit": "short"
        },
        "overrides": []
      },
      "targets": [
        {
          "refId": "A",
          "expr": "increase(notefeed_parse_timeouts_total[$__rate_interval])",
          "legendFormat": "refused for time"
        },
        {
          "refId": "B",
          "expr": "notefeed_parse_waiting",
          "legendFormat": "waiting"
        }
      ]
    },
    {
      "id": 6,
      "type": "timeseries",
      "title": "Event-loop lag p99",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "h": 8,
        "w": 12,
        "x": 12,
        "y": 16
      },
      "fieldConfig": {
        "defaults": {
          "unit": "s"
        },
        "overrides": []
      },
      "targets": [
        {
          "refId": "A",
          "expr": "notefeed_nodejs_eventloop_lag_p99_seconds",
          "legendFormat": "p99"
        }
      ]
    },
    {
      "id": 7,
      "type": "timeseries",
      "title": "Resident memory",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "h": 8,
        "w": 12,
        "x": 0,
        "y": 24
      },
      "fieldConfig": {
        "defaults": {
          "unit": "bytes"
        },
        "overrides": []
      },
      "targets": [
        {
          "refId": "A",
          "expr": "notefeed_process_resident_memory_bytes",
          "legendFormat": "rss"
        }
      ]
    }
  ]
}