Should client_max_body_size, proxy_request_buffering and proxy_buffering be enabled on Ubuntu server when running Flask application? What client_max_body_size is recomented?
1 Answer
It depends on what kind of requests you are waiting from clients.
For example, if your application support file uploading, you should increase client_max_body_size to value of max allowed file size + 1Mb
I recommend to set increased client_max_body_size for specified location only.
location /my_upload_location/ { client_max_body_size 31m;
}By default client_max_body_size = 1Mb. This means that any request from client can have Content-Length header with value less or equal 1Mb.
You should enable proxy_request_buffering only if you have more then 1 application backend and need to resend request to another backend if first one return an error.
In other case enabling proxy_request_buffering just increase response time.
Enabling proxy_buffering allow you to cache backend responses. If proxy_buffering is switched of nginx will not cache anything from your application backend.
