1

我已经按照说明使用管道工编写并部署了一个 R API到 Digital Ocean 液滴。

我在 .json 数据中发布并期待 .json 数据返回。为此,我使用curl命令行中的命令,例如:

curl --data @data/data.json http://[API ADDRESS] > results/output.json

当我发布一个小数据集时,这很好用,但随着数据集变大,我开始收到如下 HTTP 错误:

<html>
<head><title>504 Gateway Time-out</title></head>
<body bgcolor="white">
<center><h1>504 Gateway Time-out</h1></center>
<hr><center>nginx/1.10.0 (Ubuntu)</center>
</body>
</html>

我尝试编辑/etc/nginx/nginx.conf以允许更长的超时和更大的文件,但仍然没有运气。该nginx.conf文件如下:

    user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 3000;
    types_hash_max_size 2048;
    # server_tokens off;

        ##
        # Allow for longer jobs
        ##

        client_header_timeout 3000;
        client_body_timeout 3000;
        fastcgi_read_timeout 3000;
        client_max_body_size 100M;
        fastcgi_buffers 8 128k;
        fastcgi_buffer_size 128k;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

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

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;

}

然后我重新启动 nginx 服务器,sudo service nginx restart但仍然出现超时错误。

/var/log/nginx/error.log行内容如下:

*4 upstream timed out (110: Connection timed out) while reading response header from upstream, client: [MY IP], server: _, request: "POST [API]", upstream: "http://127.0.0.1:8000/[API]", host: "[HOST ADDRESS]"

您可以就管道工如何在幕后工作提供的任何帮助或提示确实非常有用。非常感谢!

4

1 回答 1

1

我现在通过添加以下几行来解决这个问题/etc/nginx/sites-available/[my site]/mysite.conf

location {
    # time out settings
    proxy_connect_timeout 3000s;
    proxy_send_timeout   3000;
    proxy_read_timeout   3000;
}

我还注释掉了其中的keepalive_timout标志nginx.conf并指定了本文中的 http 版本,但我不确定究竟是什么造成了不同。如果我发现我会更新答案。

于 2017-06-19T13:02:09.840 回答