Setting a trace id in nginx load balancer

Question

I\'m using nginx as a load balancer in front of several upstream app servers and I want to set a trace id to use to correlate requests with the app server logs. What\'s the bes

Answer 1

In our production environment we do have a custom module like this. It can generate a unique trace id and then it will be pushed into http headers which send to the upstream server. The upstream server will check if the certain field is set, it will get the value and write it to access_log, thus, we can trace the request.

And I find an 3rd party module just looks the same: nginx-operationid, hope it is helpful.