1 .

2 .1 Go In DiDi 2 3 4 

3 .)( 

4 .DUSE DOS DISE DESE 

5 .AB 

6 .• • • • • • 

7 .• • • • • if err != nil { return err • } • • • & 

8 .1 Go In DiDi 2 3 4 

9 .

10 .

11 .• • • • • • • • 

12 . DLTAG Key/Value / TraceId SpanId / / 

13 . SWAN SRIUS ARIUS APP 

14 .

15 .• • • • • • • 

16 . struct ReqHead { 1: optional i64 hintCode; thrift 2: optional string hintContent; } POST /didi/v1/just/for/show HTTP/1.1 http Host: 100.69.110.98:8000 HintCode: 0000000 HintContent: {} 

17 . 1 A A A • 0 A • + • 5 % • A • 1 • 

18 . Driver Agent Passenger Agent 

19 .

20 .

21 ./ 

22 .- 

23 . PHP Server Client Go Server 

24 . PHP Server Client Proxy Go Server Test Go Server 

25 .

26 . 100% PHP Server 100% Client Proxy 0% 100% Go Server 

27 . 100% PHP Server 50% Client Proxy 50% 100% Go Server 

28 . 100% PHP Server 0% Client Proxy 100% 100% Go Server 

29 .