mrkiril/hsa-11_load_balansing

Projector HW 11 - cdn

Upstream - random

Riga: 3312

Berlin: 3351

London: 3337

Upstream - least_conn

Riga: 3334

Berlin: 3328

London: 3338

Upstream - ip_hash

Riga: 10000

Berlin: 0

London: 0

Upstream - least_conn (with weight)

server projector_nginx_node_berlin:80 weight=2;
server projector_nginx_node_london:80 weight=5;
server projector_nginx_node_riga:80   weight=5;

Riga: 4166

Berlin: 1667

London: 4167

But when we apply cache after first 500 request we can see result like this

server projector_nginx_node_berlin:80 weight=1;
server projector_nginx_node_london:80 weight=1;
server projector_nginx_node_riga:80   weight=1;

Riga: 166

Berlin: 167

London: 9667

This means before 501 request we have uniform distribution. After it, London request was added to cache, and all next responses has cookies X-Node: London.