Help: FOLLOWS_FROM reference doesn't link to other trace

[OlivierAlbertini]

Hi,

Requirement - what kind of business use case are you trying to solve?

I try to make a FOLLOWS_FROM reference to another trace.
My first trace represent several API calls. The last call triggers a long running process (async process, 3-5seconds if everything is up)

Here my first trace:

dsp-events-api calls the long running process.
Here the raw json of my first trace:

{
  "data": [
    {
      "traceID": "90bf511d794743cc8b49e7543a85b166",
      "spans": [
        {
          "traceID": "90bf511d794743cc8b49e7543a85b166",
          "spanID": "a9f2342543093bd9",
          "flags": 1,
          "operationName": "/api/city-services/formio-api/v1/validations/submission/5d4452ada2d1640017b22f4e",
          "references": [
            
          ],
          "startTime": 1564758714624000,
          "duration": 4120621,
          "tags": [
            {
              "key": "internal.span.format",
              "type": "string",
              "value": "proto"
            }
          ],
          "logs": [
            {
              "timestamp": 1564758718744000,
              "fields": [
                {
                  "key": "message.id",
                  "type": "float64",
                  "value": 1
                },
                {
                  "key": "message.type",
                  "type": "float64",
                  "value": 2
                }
              ]
            }
          ],
          "processID": "p1",
          "warnings": null
        },
        [...],
        {
          "traceID": "90bf511d794743cc8b49e7543a85b166",
          "spanID": "48815dcc0ad658f6",
          "flags": 1,
          "operationName": "POST /api/it-platforms/messaging/events/v1/events",
          "references": [
            {
              "refType": "CHILD_OF",
              "traceID": "90bf511d794743cc8b49e7543a85b166",
              "spanID": "a9f2342543093bd9"
            }
          ],
          "startTime": 1564758718353000,
          "duration": 388850,
          [...]
         },
         {
          "traceID": "90bf511d794743cc8b49e7543a85b166",
          "spanID": "7051c4226bd824fc",
          "flags": 1,
          "operationName": "/api/it-platforms/messaging/events/v1/events",
          "references": [
            {
              "refType": "CHILD_OF",
              "traceID": "90bf511d794743cc8b49e7543a85b166",
              "spanID": "48815dcc0ad658f6"
            }
          ],
          [...]
         }

Here my second trace:

As you see, Jaeger UI shows <trace-without-root-span>
SN Worker DCI has a FOLLOWS_FROM reference to the dsp-events-api

{
  "data": [
    {
      "traceID": "e8cb698afce04831b912bd26d62467e8",
      "spans": [
        {
          "traceID": "e8cb698afce04831b912bd26d62467e8",
          "spanID": "11b73ddfe69dea3b",
          "flags": 1,
          "operationName": "create_service_request_task",
          "references": [
            {
              "refType": "FOLLOWS_FROM",
              "traceID": "90bf511d794743cc8b49e7543a85b166",
              "spanID": "48815dcc0ad658f6"
            }
          ],
          "startTime": 1564761895852000,
          "duration": 804337,
          [...]

Problem - what in Jaeger blocks you from solving the requirement?

Jaeger UI doesn't show the link between the two traces... Raw json for each trace seems fine.

Any open questions to address

• Do you have a workaround ?
• Do you see something that I'm doing wrong ?

Extra info

jaeger image version: jaegertracing/jaeger-collector:1.12
storage: elasticsearch: 6.8 oss
platform: Kubernetes

[yurishkuro]

I think the solution to this would be once this ticket is implemented: jaegertracing/jaeger-ui#358

[yurishkuro]

Please subscribe or reply to jaegertracing/jaeger-ui#358 for follow-up. I am closing this as duplicate. Feel free to re-open if you think it's something different.