tom-pytel commented on pull request #21:
URL: https://github.com/apache/skywalking-nodejs/pull/21#issuecomment-753954388


   I am using a slightly condensed debug log for easier reading, have a look at 
both the client and server below and notice the first 4 lines of each, that is 
the entry span being created and closed BEFORE the async exit spans even get 
executed. That segment close needs to be deferred via await until the async 
http request handler terminates.
   
   client.ts:
   ```
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 45 C.newEntrySpan: [] 0
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 45 C.start: 0
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 45 C.stop: 0
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 45 C.segment-finished
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 53 C.newExitSpan: [] 1
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 53 C.start: 1
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 53 C.newExitSpan: [ 1 ] 1
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 53 C.async: 1
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 77 C.resync: 1
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 68 http stop: 15467.935335000046
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 68 C.stop: 1
   18506 725008eaa7574e4e8ee4d3f495ba1f7e 68 C.segment-finished
   ```
   
   server.ts
   ```
   18476 3a638dea53e145599075e9ddaaa369e2 50 C.newEntrySpan: [] 0
   18476 3a638dea53e145599075e9ddaaa369e2 50 C.start: 0
   18476 3a638dea53e145599075e9ddaaa369e2 50 C.stop: 0
   18476 3a638dea53e145599075e9ddaaa369e2 50 C.segment-finished
   18476 3a638dea53e145599075e9ddaaa369e2 58 C.newExitSpan: [] 1
   18476 3a638dea53e145599075e9ddaaa369e2 58 C.start: 1
   18476 3a638dea53e145599075e9ddaaa369e2 58 C.newExitSpan: [ 1 ] 1
   18476 3a638dea53e145599075e9ddaaa369e2 58 C.async: 1
   18476 3a638dea53e145599075e9ddaaa369e2 80 C.resync: 1
   18476 3a638dea53e145599075e9ddaaa369e2 71 http stop: 20777.711658000015
   18476 3a638dea53e145599075e9ddaaa369e2 71 C.stop: 1
   18476 3a638dea53e145599075e9ddaaa369e2 71 C.segment-finished
   ```


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