Update Nginx (#5273)

* Update nginx conf

* Update ubuntu to 19.10

frameworks/C/nginx/nginx.conf

@@ -2,12 +2,12 @@ user www-data;
 worker_processes  auto;
 worker_cpu_affinity auto;
 error_log stderr error;
-#worker_rlimit_nofile 1000000;
+worker_rlimit_nofile 1024000;
 timer_resolution 1000ms;
 daemon off;
 
 events {
-    worker_connections 65536;
+    worker_connections 1000000;
 	multi_accept off; #default
 }
 
@@ -22,11 +22,11 @@ http {
     tcp_nodelay on; #default
     keepalive_timeout 65;
     keepalive_disable none; #default msie6
-    keepalive_requests 300000; #default 100
+    keepalive_requests 10000000; #default 100
 
     server {
-        listen      8080 default_server reuseport deferred fastopen=4096;
-                    #8080 default_server reuseport deferred backlog=65535 fastopen=4096;
+        listen      *:8080 backlog=65535 reuseport;
+                    #8080 default_server reuseport deferred backlog=250000 fastopen=4096;
         root /;
         
         location = / {

frameworks/C/nginx/nginx.dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:19.04
+FROM ubuntu:19.10
 
 ARG DEBIAN_FRONTEND=noninteractive