nginx / ngx_http_proxy_module proxy_headers_hash_bucket_size

Here, we will take a look at the configuration and behavior of the ngx_http_proxy_module module. Nginx is known as a web server and reverse proxy famous for its high performance and low resource consumption. One of the essential features of Nginx is its ability to proxy requests to other servers. This feature is particularly useful for websites that need balanced loading and efficient scaling, making it very practical.

The ngx_http_proxy_module module is present by default in Nginx and helps in processing requests and sending them to other servers. One of the important parameters for this module is proxy_headers_hash_bucket_size. This parameter is used to define the bucket size for proxy headers and can have an impact on Nginx's performance.

If there are many requests or headers being received, it is necessary to correctly configure the proxy_headers_hash_bucket_size. Otherwise, it may happen that the headers are not processed correctly, leading to issues in processing requests.

Here is an example of how to configure proxy_headers_hash_bucket_size in the Nginx configuration file. Before making any changes, be sure to backup your Nginx configuration file.

http {
    proxy_headers_hash_bucket_size 128;
    server {
        location / {
            proxy_pass http://backend;
        }
    }
}

In this configuration, we set the bucket size for proxy headers to 128 and perform proxy actions to another server (here backend).

Code Explanation

http {

    proxy_headers_hash_bucket_size 128;

    server {

        location / {

            proxy_pass http://backend;

        }
    }
}