$ Request_time and $ upstream_response_time monitoring of nginx

Preface today, the teacher gave me a task on trello, that is, to modify the nginx log format and monitor nginx. Therefore, I have come into contact with two common nginx parameters, here we record $ request_time & $ upstream_response_time. First, Let's explain the two parameters.

• $ Request_time: the time when nginx processes the request.
• $ Upstream_response_time: PHP-CGI Response Time

Log format test code

<? Phpsleep (5); echo "Hello world! <Br> ";?>

Logs

We can use the code to analyze logs and sort the logs by $ request_time and $ upstream_response_time to obtain the most time-consuming requests. This improves the code and improves the user experience!