Can nginx direct the user to the same node?

Question

Nginx

Hello!

There is a java application that is deployed on several servers, and nginx balances requests. The bottom line is that the user gets to the same server with which he started working. Experimentally, it was found that this behavior depends on cookies (like jsessionid). That is, after cleaning, cookies are thrown to another server. Is Nginx capable of this? If so, which directive is responsible for this?

Answer 1

code.google.com/p/nginx-sticky-module/
nginx.org/ru/docs/http/ngx_http_upstream_module.html#ip_hash

Answer 2

in general, nginx.org/ru/docs/http/ngx_http_upstream_module.html#ip_hash is responsible for this function