Make nginx load balance using least-connections

By default, nginx uses round robin for load balancing. Round robin
works well when all requests take same amount of time, but is not
optimal for dynamic loads.

With least-connected load balancing, nginx will try not to overload
a busy server with excessive requests, sending requests to a less
busy server instead.

Issue-ID: CPS-2415
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: I0e7d6b36a79aa6541f2f5f667746f2792d55e54b

diff --git a/docker-compose/config/nginx/nginx.conf b/docker-compose/config/nginx/nginx.conf
index 17fad1b..61fed51 100644 (file)
--- a/docker-compose/config/nginx/nginx.conf
+++ b/docker-compose/config/nginx/nginx.conf
@@ -20,7 +20,9 @@ http {
 
     # Add more server entries here for scaling or load balancing
     upstream cps-and-ncmp {
-        server cps-and-ncmp:8080;
+        least_conn;
+        server docker-compose-cps-and-ncmp-1:8080;
+        server docker-compose-cps-and-ncmp-2:8080;
     }
 
     server {