kezhenxu94 commented on code in PR #104:
URL:
https://github.com/apache/skywalking-nginx-lua/pull/104#discussion_r854891407
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lib/skywalking/tracing_context.lua:
##########
@@ -109,14 +109,21 @@ function _M.newNoOP()
return {is_noop = true}
end
-function _M.new(serviceName, serviceInstanceName)
+function _M.new(serviceName, serviceInstanceName, requestId)
if serviceInstanceName == nil or serviceName == nil then
return _M.newNoOP()
end
+ -- use request_id as trace_id if it is present
+ local trace_id = Util.newID()
+ local segment_id = trace_id
+ if requestId ~= nil then
+ trace_id = requestId
+ end
Review Comment:
`Util.newID()` is not free so it'd better only invoke it when necessary
```suggestion
local trace_id = requestId
if trace_id == nil then
trace_id = Util.newID()
end
local segment_id = trace_id
```
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