Question

我已经设置了一个nginx服务器，通过该服务器，请求通过nginx proxy_pass（在/etc/nginx/default.d/my.conf中配置）转发到AWS ELB。在实例上运行的AWS ELB tomcat应用程序的背后。在使用Jmeter执行负载测试（15k-20k吞吐量）之后，它可以正常工作，但是在提高吞吐量值之后，它给出了以下上游错误：

2019/06/06 15:54:32 [错误] 31483＃0：* 924684 connect（）在连接到上游时失败（110：连接超时），客户端：172.29.94.68，服务器：_，请求： “ GET / example1 / model / v2 / 4SBWFWMMFWKWDWFS178S94DFDE / imageurl HTTP / 1.1”，上游：“ https://XX.XX.XX.XX:443/example1/model/v2/4SBWFWMMFWKWDWFS178S94DFDE/imageurl”，主机：“ myapp.example.com”

我已经尝试在nginx.conf文件中进行许多更改，下面显示了完整的conf文件详细信息。重新启动或重新加载nginx服务时，问题已解决。但这不是永久解决方案。

#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes 8;
error_log /var/log/nginx/error.log debug;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 50000;
    use epoll;
    }

worker_rlimit_nofile 30000;

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   30;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Default is HTTP/1, keepalive is only enabled in HTTP/1.1
    proxy_http_version 1.1;
    # Remove the Connection header if the client sends it,
    # it could be "close" to close a keepalive connection
    proxy_set_header Connection "";


    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        error_page 404 /404.html;
            location = /40x.html {
                }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }

Nginx服务应连续处理高吞吐量值。

获取上游错误[连接到上游时，connect（）失败（110：连接超时）]

0 个答案: