2 - APM Service Details
Service details explaining the RED metrics and other insightful metrics from the Service and its Operations.
Service Details dashboard offered by Promscale on top of traces by leveraging SQL and TimescaleDB capabilities.

This dashboard contains details specific to a service:

1. **Requests** rate. 
2. **Duration** of requests i.e. p99, p90, p50, and Average.
3. **Error rate**.
4. **Statistics by Operations** i.e. Requests rate per Operation.
5. **Slowest Operation Executions** describing Trace ID, Operation, Timestamp, and Duration. 
6. **Most Common Errors** describing Errors and Occurrences. 
{
  "__inputs": [
    {
      "name": "DS_PROMSCALE-SQL",
      "label": "Promscale-SQL",
      "description": "TimescaleDB as PostgreSQL data source",
      "type": "datasource",
      "pluginId": "postgres",
      "pluginName": "PostgreSQL"
    }
  ],
  "__elements": [],
  "__requires": [
    {
      "type": "grafana",
      "id": "grafana",
      "name": "Grafana",
      "version": "8.5.2"
    },
    {
      "type": "datasource",
      "id": "postgres",
      "name": "PostgreSQL",
      "version": "1.0.0"
    },
    {
      "type": "panel",
      "id": "table",
      "name": "Table",
      "version": ""
    },
    {
      "type": "panel",
      "id": "timeseries",
      "name": "Time series",
      "version": ""
    }
  ],
  "annotations": {
    "list": [
      {
        "builtIn": 1,
        "datasource": {
          "type": "datasource",
          "uid": "grafana"
        },
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "target": {
          "limit": 100,
          "matchAny": false,
          "tags": [],
          "type": "dashboard"
        },
        "type": "dashboard"
      }
    ]
  },
  "editable": true,
  "fiscalYearStartMonth": 0,
  "graphTooltip": 2,
  "id": null,
  "iteration": 1652000882450,
  "links": [
    {
      "asDropdown": false,
      "icon": "external link",
      "includeVars": true,
      "keepTime": true,
      "tags": [
        "promscale",
        "apm"
      ],
      "targetBlank": false,
      "title": "Menu",
      "tooltip": "",
      "type": "dashboards",
      "url": ""
    }
  ],
  "liveNow": false,
  "panels": [
    {
      "datasource": {
        "type": "postgres",
        "uid": "${DS_PROMSCALE-SQL}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "axisLabel": "",
            "axisPlacement": "auto",
            "barAlignment": 0,
            "drawStyle": "line",
            "fillOpacity": 0,
            "gradientMode": "none",
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            },
            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "auto",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          },
          "unit": "reqps"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 11,
        "w": 8,
        "x": 0,
        "y": 0
      },
      "id": 2,
      "interval": "1s",
      "maxDataPoints": 300,
      "options": {
        "legend": {
          "calcs": [],
          "displayMode": "list",
          "placement": "bottom"
        },
        "tooltip": {
          "mode": "single",
          "sort": "none"
        }
      },
      "pluginVersion": "8.3.3",
      "targets": [
        {
          "datasource": {
            "type": "postgres",
            "uid": "${DS_PROMSCALE-SQL}"
          },
          "format": "time_series",
          "group": [],
          "metricColumn": "none",
          "rawQuery": true,
          "rawSql": "SELECT\n    time_bucket_gapfill('$__interval', start_time) AS time,\n    coalesce(count(*)::numeric / (EXTRACT(epoch FROM '$__interval'::interval)), 0) AS \"Requests\"\nFROM ps_trace.span s\nWHERE $__timeFilter(start_time)\nAND (span_kind = 'server' OR parent_span_id is NULL)\nAND service_name = '${service}'\nGROUP BY 1\nORDER BY 1",
          "refId": "A",
          "select": [],
          "table": "event",
          "timeColumn": "\"time\"",
          "timeColumnType": "timestamp",
          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Requests",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "postgres",
        "uid": "${DS_PROMSCALE-SQL}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "axisLabel": "",
            "axisPlacement": "auto",
            "barAlignment": 0,
            "drawStyle": "line",
            "fillOpacity": 0,
            "gradientMode": "none",
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            },
            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "auto",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          },
          "unit": "ms"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 11,
        "w": 8,
        "x": 8,
        "y": 0
      },
      "id": 3,
      "interval": "1s",
      "maxDataPoints": 300,
      "options": {
        "legend": {
          "calcs": [],
          "displayMode": "list",
          "placement": "bottom"
        },
        "tooltip": {
          "mode": "single",
          "sort": "none"
        }
      },
      "pluginVersion": "8.3.3",
      "targets": [
        {
          "datasource": {
            "type": "postgres",
            "uid": "${DS_PROMSCALE-SQL}"
          },
          "format": "time_series",
          "group": [],
          "metricColumn": "none",
          "rawQuery": true,
          "rawSql": "SELECT\n    time_bucket_gapfill('$__interval', start_time) AS time,\n    COALESCE(ROUND(approx_percentile(0.99, percentile_agg(duration_ms))::numeric, 3), 0) as \"p99\",\n    COALESCE(ROUND(approx_percentile(0.90, percentile_agg(duration_ms))::numeric, 3), 0) as \"p90\",\n    COALESCE(ROUND(approx_percentile(0.50, percentile_agg(duration_ms))::numeric, 3), 0) as \"p50\",\n    COALESCE(AVG(duration_ms), 0) as \"Average\"\nFROM ps_trace.span s\nWHERE $__timeFilter(start_time)\nAND (span_kind = 'server' OR parent_span_id is NULL)\nAND service_name = '${service}'\nGROUP BY 1\nORDER BY 1",
          "refId": "A",
          "select": [],
          "table": "event",
          "timeColumn": "\"time\"",
          "timeColumnType": "timestamp",
          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Duration",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "postgres",
        "uid": "${DS_PROMSCALE-SQL}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "axisLabel": "",
            "axisPlacement": "auto",
            "axisSoftMax": 1,
            "axisSoftMin": 0,
            "barAlignment": 0,
            "drawStyle": "line",
            "fillOpacity": 0,
            "gradientMode": "none",
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            },
            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "auto",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "line"
            }
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "percentunit"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 11,
        "w": 8,
        "x": 16,
        "y": 0
      },
      "id": 4,
      "interval": "1s",
      "maxDataPoints": 300,
      "options": {
        "legend": {
          "calcs": [],
          "displayMode": "list",
          "placement": "bottom"
        },
        "tooltip": {
          "mode": "single",
          "sort": "none"
        }
      },
      "targets": [
        {
          "datasource": {
            "type": "postgres",
            "uid": "${DS_PROMSCALE-SQL}"
          },
          "format": "time_series",
          "group": [],
          "metricColumn": "none",
          "rawQuery": true,
          "rawSql": "SELECT\n    time_bucket('$__interval', start_time) as time,\n    coalesce(count(*) filter (where status_code = 'error')::numeric / count(*), 0) as \"Error rate\"\nFROM ps_trace.span s\nWHERE $__timeFilter(start_time)\nAND (span_kind = 'server' OR parent_span_id is NULL)\nAND service_name = '${service}'\nGROUP BY 1\nORDER BY 1",
          "refId": "A",
          "select": [],
          "table": "event",
          "timeColumn": "\"time\"",
          "timeColumnType": "timestamp",
          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Error Rate",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "postgres",
        "uid": "${DS_PROMSCALE-SQL}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "custom": {
            "align": "auto",
            "displayMode": "auto",
            "inspect": false
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          }
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Requests"
            },
            "properties": [
              {
                "id": "unit",
                "value": "reqps"
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "Avg Duration"
            },
            "properties": [
              {
                "id": "unit",
                "value": "ms"
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "Error rate"
            },
            "properties": [
              {
                "id": "unit",
                "value": "percentunit"
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 12,
        "w": 8,
        "x": 0,
        "y": 11
      },
      "id": 10,
      "options": {
        "footer": {
          "fields": "",
          "reducer": [
            "sum"
          ],
          "show": false
        },
        "showHeader": true,
        "sortBy": []
      },
      "pluginVersion": "8.5.2",
      "targets": [
        {
          "datasource": {
            "type": "postgres",
            "uid": "${DS_PROMSCALE-SQL}"
          },
          "format": "table",
          "group": [],
          "metricColumn": "none",
          "rawQuery": true,
          "rawSql": "SELECT\n    span_name as \"Operation\",\n    count(*)::numeric / (${__to:date:seconds} - ${__from:date:seconds}) AS \"Requests\",\n    sum(duration_ms) / count(*)::numeric as \"Avg Duration\",\n    coalesce((count(*) filter (where status_code = 'error')::numeric / count(*)), 0) as \"Error rate\"\nFROM ps_trace.span s\nWHERE $__timeFilter(start_time)\nAND (span_kind = 'server' OR parent_span_id is NULL)\nAND service_name = '${service}'\nGROUP BY 1\nORDER BY 1",
          "refId": "A",
          "select": [],
          "table": "event",
          "timeColumn": "\"time\"",
          "timeColumnType": "timestamp",
          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Statistics by Operation",
      "type": "table"
    },
    {
      "datasource": {
        "type": "postgres",
        "uid": "${DS_PROMSCALE-SQL}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "custom": {
            "align": "auto",
            "displayMode": "auto",
            "inspect": false
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          }
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Duration"
            },
            "properties": [
              {
                "id": "unit",
                "value": "ms"
              },
              {
                "id": "decimals",
                "value": 2
              },
              {
                "id": "custom.width",
                "value": 143
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "Trace ID"
            },
            "properties": [
              {
                "id": "custom.width",
                "value": 282
              },
              {
                "id": "links",
                "value": [
                  {
                    "targetBlank": true,
                    "title": "View trace details",
                    "url": "/explore?left=%5B%22${__from}%22,%22${__to}%22,%22PC6F1FDB212D0F52B%22,%7B\"query\":\"${__value.raw}\"%7D%5D"
                  }
                ]
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "start_time"
            },
            "properties": [
              {
                "id": "custom.width",
                "value": 182
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "Trace ID"
            },
            "properties": [
              {
                "id": "custom.width",
                "value": 94
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 12,
        "w": 8,
        "x": 8,
        "y": 11
      },
      "id": 7,
      "options": {
        "footer": {
          "fields": "",
          "reducer": [
            "sum"
          ],
          "show": false
        },
        "showHeader": true,
        "sortBy": []
      },
      "pluginVersion": "8.5.2",
      "targets": [
        {
          "datasource": {
            "type": "postgres",
            "uid": "${DS_PROMSCALE-SQL}"
          },
          "format": "table",
          "group": [],
          "metricColumn": "none",
          "rawQuery": true,
          "rawSql": "SELECT\n  replace(trace_id::text, '-'::text, ''::text) as \"Trace ID\",\n  span_name as \"Operation\",\n  start_time as \"Time\",\n  duration_ms as \"Duration\"\nFROM ps_trace.span\nWHERE $__timeFilter(start_time)\nAND (span_kind = 'server' OR parent_span_id is NULL)\nAND service_name = '${service}'\nORDER BY duration_ms DESC\nLIMIT 50\n;",
          "refId": "A",
          "select": [],
          "table": "event",
          "timeColumn": "\"time\"",
          "timeColumnType": "timestamp",
          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Slowest Operation Executions",
      "type": "table"
    },
    {
      "datasource": {
        "type": "postgres",
        "uid": "${DS_PROMSCALE-SQL}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "custom": {
            "align": "auto",
            "displayMode": "auto",
            "inspect": false
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 12,
        "w": 8,
        "x": 16,
        "y": 11
      },
      "id": 9,
      "options": {
        "footer": {
          "fields": "",
          "reducer": [
            "sum"
          ],
          "show": false
        },
        "showHeader": true,
        "sortBy": []
      },
      "pluginVersion": "8.5.2",
      "targets": [
        {
          "datasource": {
            "type": "postgres",
            "uid": "${DS_PROMSCALE-SQL}"
          },
          "format": "table",
          "group": [],
          "metricColumn": "none",
          "rawQuery": true,
          "rawSql": "SELECT\n  status_message as \"Error\",\n  count(*) as \"Occurrences\"\nFROM ps_trace.span\nWHERE $__timeFilter(start_time) AND\nstatus_code = 'error' AND\nservice_name = '${service}'\nGROUP BY 1\nORDER BY 2 DESC\n;",
          "refId": "A",
          "select": [],
          "table": "event",
          "timeColumn": "\"time\"",
          "timeColumnType": "timestamp",
          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Most Common Errors",
      "type": "table"
    }
  ],
  "refresh": "",
  "schemaVersion": 36,
  "style": "dark",
  "tags": [
    "promscale",
    "apm"
  ],
  "templating": {
    "list": [
      {
        "current": {},
        "datasource": {
          "type": "postgres",
          "uid": "${DS_PROMSCALE-SQL}"
        },
        "definition": "SELECT \n   distinct(service_name)\nFROM ps_trace.span\nWHERE $__timeFilter(start_time)\n",
        "hide": 0,
        "includeAll": false,
        "label": "Service",
        "multi": false,
        "name": "service",
        "options": [],
        "query": "SELECT \n   distinct(service_name)\nFROM ps_trace.span\nWHERE $__timeFilter(start_time)\n",
        "refresh": 1,
        "regex": "",
        "skipUrlSync": false,
        "sort": 1,
        "type": "query"
      }
    ]
  },
  "time": {
    "from": "now-1h",
    "to": "now"
  },
  "timepicker": {},
  "timezone": "",
  "title": "2 - APM Service Details",
  "uid": "YWfN6wL7z",
  "version": 1,
  "weekStart": "",
  "gnetId": 16243,
  "description": "Service details explaining the RED metrics and other insightful metrics from the Service and its Operations."
}