Question

我已使用plumber编写并使用instructions向数字海洋液滴部署了一个R API。

我在.json数据中发帖并期待.json数据回来。为此，我使用命令行中的curl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，我开始得到一个HTTP错误，如下所示：

<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。 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/*;

}

然后我用sudo service nginx restart重新启动nginx服务器，但仍然收到超时错误。

/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]"

您可以提供有关管道工如何在引擎盖下工作的任何帮助或提示确实非常有用。非常感谢！

Answer 1

我现在通过将以下行添加到/etc/nginx/sites-available/[my site]/mysite.conf

来解决此问题

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

我还在keepalive_timout中注释了nginx.conf标记并指定了this article中的http版本，但我不确定究竟是什么造成了差异。如果我发现我会更新答案。

R Plumber API：防止＆＃34; 504网关超时＆＃34;

1 个答案: