小文件（小于 20kb）上传没有问题，任何更大的文件都会导致达到超时限制并出现 504 响应。nginx 配置具有足够大的客户端最大主体大小，超时值不会改变任何东西，即使设置为非常大的值。
include /etc/nginx/mime.types;
default_type application/octet-stream;
sendfile on;
server_tokens off;
tcp_nopush on;
tcp_nodelay on;
client_body_temp_path /tmp/nginx/body 1 2;
keepalive_timeout 300s;
proxy_connect_timeout 300s;
proxy_send_timeout 300s;
proxy_read_timeout 300s;
ssl_prefer_server_ciphers on;
gzip on;
proxy_ignore_client_abort off;
client_max_body_size 1000M;
server_names_hash_bucket_size 1024;
proxy_http_version 1.1;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Accept-Encoding "";
proxy_cache off;
proxy_cache_path /var/lib/nginx/cache/public levels=1:2 keys_zone=public-cache:30m max_size=192m;
proxy_cache_path /var/lib/nginx/cache/private levels=1:2 keys_zone=private-cache:5m max_size=1024m;
log_format proxy '[$time_local] $upstream_cache_status $upstream_status $status - $request_method $scheme $host "$request_uri" [Client $remote_addr] [Length $body_bytes_sent] [Gzip $gzip_ratio] [Sent-to $server] "$http_user_agent" "$http_referer"';
log_format standard '[$time_local] $status - $request_method $scheme $host "$request_uri" [Client $remote_addr] [Length $body_bytes_sent] [Gzip $gzip_ratio] "$http_user_agent" "$http_referer"';
access_log /data/logs/fallback_access.log proxy;
# Default upstream scheme
map $host $forward_scheme {
default http;
}
# Real IP Determination
# Local subnets:
set_real_ip_from 10.0.0.0/8;
set_real_ip_from 172.16.0.0/12;
set_real_ip_from 192.168.0.0/16;
include conf.d/include/ip_ranges.conf;
real_ip_header X-Real-IP;
real_ip_recursive on;
上传小文件时 POST 成功
[31/Jan/2024:11:20:25 +0000] - 200 200 - POST http website "/up/" [Client [ip]] [Length 37] [Gzip -] [Sent-to 10.0.0.177] "ShareX/15.0.0" "-"
错误日志尾部
2024/01/31 11:25:39 [error] 312417#312417: *510967 upstream timed out (110: Connection timed out) while sending request to upstream, client: [ip], server: website.com, request: "POST /up/ HTTP/1.1", upstream: "http://10.0.0.177:80/up/", host: "website.com"
2024/01/31 11:30:40 [error] 312417#312417: *510967 upstream timed out (110: Connection timed out) while sending request to upstream, client: [ip], server: website.com, request: "POST /up/ HTTP/1.1", upstream: "http://10.0.0.177:80/up/", host: "website.com"
访问日志尾部
[31/Jan/2024:11:25:39 +0000] - 504 504 - POST http website.com "/up/" [Client [ip]] [Length 164] [Gzip -] [Sent-to 10.0.0.177] "ShareX/15.0.0" "-"
[31/Jan/2024:11:30:40 +0000] - 504 504 - POST http website.com "/up/" [Client [ip]] [Length 164] [Gzip -] [Sent-to 10.0.0.177] "ShareX/15.0.0" "-"