When the response body of the backend server is greater than proxy_temp_file_write_size, the response is buffered into a temporary file in the Proxy_temp_path directory, when the client request body is greater than client_body_ Buffer_size, the request is cached in a temporary file in the Client_body_temp_path directory. Therefore, when Nginx handles large data requests or responses, the disk IO pressure of the temporary directory is large, which may become a system bottleneck. The application should be based on the application scenario and data size, reasonable configuration proxy_temp_file_write_size and client_body_buffer_size, appropriately reduce the need to cache to temporary files.
The above describes the Nginx cache path configuration optimization, including the nginx aspects of the content, I hope that the PHP tutorial interested friends helpful.