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。
该/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!