tempo

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Is your feature request related to a problem? Please describe. It would be great if trace visualization tools (e.g. Grafana, Jaeger UI) can show additional metadata in the search results for each matched trace. Specifically, the service names of traversed services, span count and error count.

Example in the Jaeger UI:

Describe the solution you'd like The /api/search?q=... API should return the above metadata, for example:

{
  "traceID": "20ae1e9d40ab5759699035e3c09092b3",
  "rootServiceName": "frontend",
  "rootTraceName": "HTTP GET /dispatch",
  "startTimeUnixNano": "1695040911822070267",
  "durationMs": 738,
  "spanSets": [
    {
      "spans": [
        {
          "spanID": "f953b82c348121d2",
          "startTimeUnixNano": "1695040911822559586",
          "durationNanos": "321561466"
        },
        {
          "spanID": "299e15e2db12f15f",
          "startTimeUnixNano": "1695040911822502499",
          "durationNanos": "321668520"
        },
        {
          "spanID": "e6cfbd41f7438b69",
          "startTimeUnixNano": "1695040911822213022",
          "durationNanos": "322204809"
        }
      ],
      "matched": 51
    }
  ],
  "servicesMeta": [
    {
      "serviceName": "mysql",
      "spanCount": "1"
    },
    {
      "serviceName": "customer",
      "spanCount": "1"
    },
    {
      "serviceName": "frontend",
      "spanCount": "24"
    },
    {
      "serviceName": "route",
      "spanCount": "10"
    },
    {
      "serviceName": "driver",
      "spanCount": "1"
    },
    {
      "serviceName": "redis",
      "spanCount": "14",
      "errorCount": 2
    }
  ]
},

Describe alternatives you've considered Alternatively, the visualization tool can query the entire trace by ID for each search result. This will result in slow performance however.

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Is this complete with the release of vparquet4?

Yes, this is complete and can be closed :+1: