[SCB-1197] enhance provider tracing handler to inherit spans from http header

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Java-Chassis
• Assignee: Unassigned
• Reporter: Jimin Wu
• Created: 13/Mar/19 14:00
• Updated: 03/Jan/24 07:34
• Resolved: 03/Jan/24 07:34

Description

https://github.com/apache/servicecomb-java-chassis/issues/1116

currently we already inherit traceId from http header in: org.apache.servicecomb.core.Invocation#initTraceId(org.apache.servicecomb.core.tracing.TraceIdGenerator)

 

to inherit spans from http header we need to change:

org.apache.servicecomb.tracing.zipkin.ZipkinProviderDelegate#INVOCATION_STRING_GETTER,    (if key is SPAN_ID_HEADER_NAME)

1. try to get from invocation.context, if already exists then return directly
2. if invocation.requestEx is no null, try to get from http header
3. if still can not get spanId, then make spanId equals traceId

 

maybe this is enough, but i'm not sure, need to test.