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服务请求出现偶发超时问题,经查服务本身没问题，问题出现在nginx转发。

news 2025/10/16 10:14:21

服务会时不时的出现超时问题，经过排查，超时期间，本身的服务接口是正常的，说明出现在外网请求地址，也就是nginx转发问题，nginx没有收到请求日志！

nginx原先的配置是：

#user nobody;
worker_processes 1;

#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

#pid logs/nginx.pid;

events {
worker_connections 1024;
}

http {
include mime.types;
default_type application/octet-stream;

#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
# 定义一个新的、更详细的日志格式
log_format main_ext '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" '
'upstream_addr: $upstream_addr '
'request_time: $request_time '
'upstream_response_time: $upstream_response_time '
'upstream_connect_time: $upstream_connect_time ';

#access_log logs/access.log main;

sendfile on;
#tcp_nopush on;

#keepalive_timeout 0;
keepalive_timeout 65;

#gzip on;

server {
listen 8092;
server_name localhost 172.16.0.2;

#charset koi8-r;

access_log logs/host.access.log main_ext;

location ^~/All_Processor {
proxy_pass http://192.168.0.173:8095/All_Processor;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Forwarded-Scheme $scheme;
}

location ^~/bridge {
proxy_pass http://192.168.0.173:8063/bridge;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Forwarded-Scheme $scheme;
}

}

基本只是做了一个简单的服务转发

优化后的nginx：

#user nobody;
worker_processes 1; # Windows建议使用1个进程

events {
worker_connections 1024; # Windows下1024足够
multi_accept on; # 提升连接处理效率
accept_mutex off; # 关闭锁，提升性能
}

http {
include mime.types;
default_type application/octet-stream;

log_format main_ext '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" '
'upstream_addr: $upstream_addr '
'request_time: $request_time '
'upstream_response_time: $upstream_response_time '
'upstream_connect_time: $upstream_connect_time ';

sendfile on;
tcp_nopush on; # Windows下也有效
tcp_nodelay on; # 减少延迟
keepalive_timeout 65;
keepalive_requests 1000; # 每个连接最大请求数

# 连接池配置
upstream backend_8063 {
server 192.168.0.173:8063 max_fails=3 fail_timeout=30s;
keepalive 32; # 保持32个连接
}

upstream backend_8095 {
server 192.168.0.173:8095 max_fails=3 fail_timeout=30s;
keepalive 32;
}

server {
listen 8092;
server_name localhost 172.16.0.2;

access_log logs/host.access.log main_ext;

# 超时配置
proxy_connect_timeout 30s;
proxy_send_timeout 30s;
proxy_read_timeout 30s;

# 重试配置
proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
proxy_next_upstream_tries 3;
proxy_next_upstream_timeout 30s;

location ^~/All_Processor {
proxy_pass http://backend_8095/All_Processor;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Forwarded-Scheme $scheme;

proxy_http_version 1.1;
proxy_set_header Connection "";
}

location ^~/bridge {
proxy_pass http://backend_8063/bridge;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Forwarded-Scheme $scheme;

proxy_http_version 1.1;
proxy_set_header Connection "";
}
}
}