Grafana dashboard: 1 - APM Overview
Description: APM Overview across all services.

APM Overview dashboard offered by Promscale on top of traces by leveraging SQL and TimescaleDB capabilities.

This dashboard contains from the last 30 mins :

1. **Services** describing service level metrics i.e. Requests rate, Average duration, p90 duration, and Error rate.
2. **Slowest Requests** describing Trace ID, Service, Operation. Timestamp and Duration.
3. **Most Common Errors** describing Error, Service, and Occurrences. 

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  "links": [
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        "apm"
      ],
      "targetBlank": false,
      "title": "Menu",
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      "type": "dashboards",
      "url": ""
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                "id": "unit",
                "value": "reqps"
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          },
          {
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              "options": "Avg Duration"
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                "id": "unit",
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          "rawSql": "SELECT\n    service_name AS \"Service\",\n    COUNT(*)::numeric / (30 * 60) AS \"Requests\",\n    AVG(duration_ms) AS \"Avg Duration\",\n    ROUND(approx_percentile(0.90, percentile_agg(duration_ms))::numeric, 3) AS \"p90 Duration\",\n    (count(*) filter (where status_code = 'error')::numeric / count(*)) AS \"Error rate\"\nFROM ps_trace.span s\nWHERE start_time > NOW() - INTERVAL '30m'\nAND (span_kind = 'server' OR parent_span_id is NULL)\nGROUP BY 1\nORDER BY 2",
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          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
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        "uid": "${DS_PROMSCALE-SQL}"
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      },
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          "rawQuery": true,
          "rawSql": "SELECT\n  replace(trace_id::text, '-'::text, ''::text) as \"Trace ID\",\n  service_name as \"Service\",\n  span_name as \"Operation\",\n  start_time as \"Time\",\n  duration_ms as \"Duration\" \nFROM ps_trace.span\nWHERE start_time > NOW() - INTERVAL '30m'\nAND parent_span_id is null\nORDER BY duration_ms DESC\nLIMIT 50\n;",
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          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Slowest Requests (last 30 minutes)",
      "type": "table"
    },
    {
      "datasource": {
        "type": "postgres",
        "uid": "${DS_PROMSCALE-SQL}"
      },
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          },
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                    "title": "Show service overview",
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            "uid": "${DS_PROMSCALE-SQL}"
          },
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          "metricColumn": "none",
          "rawQuery": true,
          "rawSql": "SELECT\n  status_message as \"Error\",\n  service_name as \"Service\",\n  count(*) as \"Occurrences\" \nFROM ps_trace.span\nWHERE start_time > NOW() - INTERVAL '30m'\nAND status_code = 'error'\nGROUP BY 1, 2\nORDER BY 3\n;",
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          "where": [
            {
              "name": "$__timeFilter",
              "params": [],
              "type": "macro"
            }
          ]
        }
      ],
      "title": "Most Common Errors (last 30 minutes)",
      "type": "table"
    }
  ],
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  "style": "dark",
  "tags": [
    "promscale",
    "apm"
  ],
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  "time": {
    "from": "now-1h",
    "to": "now"
  },
  "timepicker": {
    "hidden": true
  },
  "timezone": "",
  "title": "1 - APM Overview",
  "uid": "vBhEewLnk",
  "version": 1,
  "weekStart": "",
  "gnetId": 16242,
  "description": "APM Overview across all services."
}