My Filter is not print traceId in log

[zhangzx1996]

I don't know why QAQ

[wu-sheng]

Are you using webflux? I think this question is being asked repeatedly due to you didn't search issue and read docs.

For webflux filter, you need to follow this, https://skywalking.apache.org/docs/skywalking-java/latest/en/setup/service-agent/java-agent/application-toolkit-webflux/

[zhangzx1996]

Yes, I missed this doc. Very 3Q for you apply.
I was edit the filter . now I can see the trace.

But I meet a problem when I see the trace on skywalking OAP.

I search more segments when the traceId is 0fffbbd22d3c464d97129c2fb725cabf.99.17243095037540081
Why there are so many trace named "WebFluxOperators/onNext"

[wu-sheng]

It is a segment list, not a trace list. The title of the list is very clear about that.

[zhangzx1996]

But the traces of the ten segments are look same. And only gateway service occur this.
Next service is OK, just one trace segment, like this:
the traceId is 0fffbbd22d3c464d97129c2fb725cabf.99.17243095037540081

[wu-sheng]

Segments just provide the link to the same trace. I don't say they are different. They belong to one trace if you query based on trace ID.