我一直在试图找出正在发生的事情，尝试相关问题的解决方案，但我没有成功。 我正在尝试将一些json导出到xml，并且当使用不是大量数据时它会顺利进行（2000行样本没有问题）。但是当我尝试对更大的文件提出相同的请求时（假设超过25000行），nginx总是在一分钟之后给我一个 502 Bad Gateway 。 我的nginx配置文件的所有超时都设置为60秒，并且我已将它全部提升到120秒以查看是否有任何更改，但仅在一分钟后仍然获得相同的502。 有人可以帮忙吗？
以下是我发布uwsgi的方式：
command = / usr / sbin / uwsgi --buffer-size = 320000 --http 0.0.0.0:9090 --wsgi-file /usr/local/cengine/bin/adapter.py --master --processes 50 --max -requests 50 --harakiri 120 --threads 1 --disable-logging --stats 127.0.0.1:9190 --logto /var/log/uwsgi/uwsgi.log
这是我的nginx配置：
#################################################
# #
# By Puppet #
# #
#################################################
pid /var/run/nginx.pid;
user nginx nginx;
daemon off;
worker_processes 4;
events {
worker_connections 1024;
}
http {
#set_real_ip_from xx.xxx.xxx.0/24;
#real_ip_header X-Forwarded-For;
## MIME types
include /etc/nginx/mime.types;
default_type application/octet-stream;
## Size Limits
client_body_buffer_size 256K;
client_header_buffer_size 256K;
client_max_body_size 20M;
large_client_header_buffers 8 24k;
## Timeouts
client_body_timeout 120;
client_header_timeout 120;
send_timeout 120;
## General Options
ignore_invalid_headers on;
keepalive_requests 100;
keepalive_timeout 60;
recursive_error_pages on;
sendfile on;
server_name_in_redirect off;
server_tokens off;
## TCP options
tcp_nodelay on;
tcp_nopush on;
## Compression
gzip on;
gzip_buffers 24 16k;
gzip_comp_level 8;
gzip_http_version 1.0;
gzip_min_length 0;
gzip_types application/x-javascript application/json text/xml text/plain text/css image/x-icon application/x-perl application/x-httpd-cgi application/xml;
gzip_vary on;
gzip_proxied any;
## Cache setings
proxy_max_temp_file_size 0;
proxy_connect_timeout 120s;
proxy_send_timeout 120s;
proxy_read_timeout 120s;
proxy_buffer_size 8k;
proxy_buffers 8 64k;
proxy_busy_buffers_size 128k;
proxy_temp_file_write_size 128k;
proxy_intercept_errors on;
proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=webcache:1000m inactive=1y max_size=10000m;
proxy_temp_path /var/cache/nginx/tmp;
proxy_cache_min_uses 1;
log_format main '$remote_addr $host [$time_local] Upstream-cache-status: $upstream_cache_status Cengine-UUID: $upstream_http_x_ceng_uuid "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" "$http_x_forwarded_for" time=$request_time';
log_format cache '$time_local $upstream_cache_status Cache-Control: $upstream_http_cache_control Expires: $upstream_http_expires "$request" ($status) "$http_user_agent"';
upstream uwsgi {
server 127.0.0.1:9090 max_fails=3 fail_timeout=120s;
keepalive 20;
}
server {
server_name xxxxx.tpn.xxxxx.com;
access_log /var/log/nginx/access.log main;
access_log /var/log/nginx/cache.log cache;
error_log /var/log/nginx/error.log error;
listen 0.0.0.0:80;
expires off;
location / {
alias /usr/local/getec-fe/;
index index.html;
}
location /files {
internal;
alias /anexos;
}
location /cengine {
# regras rewrite
rewrite ^/(.*)/$ /$1;
rewrite ^/cengine/(.*) /$1 break;
proxy_redirect off;
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_hide_header "Set-Cookie";
#proxy_ignore_headers X-Accel-Expires Expires Cache-Control Set-Cookie;
proxy_ignore_headers X-Accel-Expires Expires Cache-Control;
add_header X-Cache-Status $upstream_cache_status;
#proxy_cookie_path /;
proxy_pass_header Set-Cookie;
add_header "Cache-Control" "max-age=0, no-cache, no-store, must-revalidate";
proxy_pass http://uwsgi;
#proxy_cache webcache;
proxy_cache off;
proxy_cache_key $scheme$host$request_uri;
proxy_cache_valid any 15s;
proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
}
location ~ ^/upload(?<username>/.+)?$ {
if ( $username = '' ) {
set $username /api;
}
client_body_temp_path /tmp;
client_body_in_file_only clean;
client_body_buffer_size 128K;
client_max_body_size 20M;
proxy_pass_request_headers on;
proxy_set_header X-FILE $request_body_file;
proxy_set_body off;
proxy_redirect off;
proxy_pass http://uwsgi/getec$username/file;
proxy_set_header Connection "";
default_type mime-type;
}
location ~ ^/~(.+?)(/.*)?$ {
alias /home/$1/public_html/projetos$2;
index index.html;
autoindex on;
#try_files $uri $uri/ /index.html =404;
}
location /csv {
alias /tmp/csv;
add_header Content-Type application/octet-stream;
add_header Content-Disposition "attachment; filename=\"$arg_filename\"";
}
location /status {
stub_status on;
access_log off;
allow xxx.xx.xxx.0/24;
allow xxx.xxx.xx.0/24;
allow xxx.xxx.xx.0/24;
allow 98.142.228.0/24;
deny all;
}
location /health_check {
return 200;
access_log off;
}
}
}
这是我的ngnix日志：
2015/04/23 13:21:04 [error] 12335#0: *188 upstream prematurely closed connection while reading response header from upstream, client: xx.xxx.x.xx, server: xxx.tpn.xxxx.com, request: "GET /cengine/getec/lucian.thomaz/exporta_csv?tabela=arquivamento&sEcho=1&iColumns=6&sColumns=%2C%2C%2C%2C%2C&iDisplayStart=0&iDisplayLength=25&mDataProp_0=ID_ARQUIVAMENTO&mDataProp_1=ID_CONTRATO&mDataProp_2=TP_DOCUMENTO&mDataProp_3=NM_CLIENTE_FORNECEDOR&mDataProp_4=DT_ASSINATURA&mDataProp_5=DS_AREA_RESPONSAVEL&sFilters={%22F_ID_ARQUIVAMENTO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22ID_ARQUIVAMENTO%22,%22Operador%22:%22eq%22,%22Valor%22:null},%22F_ID_CONTRATO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22ID_CONTRATO%22,%22Operador%22:%22eq%22,%22Valor%22:null},%22F_TP_DOCUMENTO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22TP_DOCUMENTO%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_NM_CLIENTE_FORNECEDOR%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22NM_CLIENTE_FORNECEDOR%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_NR_CNPJ%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22NR_CNPJ%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_NR_CPF%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22NR_CPF%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_DT_ASSINATURA%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22DT_ASSINATURA%22,%22Operador%22:%22having%22,%22Valor_ini%22:null,%22Valor_fin%22:null},%22F_DS_VALOR%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22DS_VALOR%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_DS_AREA_RESPONSAVEL%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22DS_AREA_RESPONSAVEL%22,%22Operador%22:%22eq%22,%22Valor%22:null},%22F_BL_ATIVO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22BL_ATIVO%22,%22Operador%22:%22eq%22,%22Valor%22:%221%22}} HTTP/1.1", upstream: "http://127.0.0.1:9090/getec/lucian.thomaz/exporta_csv?tabela=arquivamento&sEcho=1&iColumns=6&sColumns=%2C%2C%2C%2C%2C&iDisplayStart=0&iDisplayLength=25&mDataProp_0=ID_ARQUIVAMENTO&mDataProp_1=
这是uwsgi的日志：
HARAKIRI: --- uWSGI worker 50 (pid: 12758) WAS managing request /getec/lucian.thomaz/exporta_csv?tabela=arquivamento&sEcho=1&iColumns=6&sColumns=%2C%2C%2C%2C%2C&iDisplayStart=0&iDisplayLength=25&mDataProp_0=ID_ARQUIVAMENTO&mDataProp_1=ID_CONTRATO&mDataProp_2=TP_DOCUMENTO&mDataProp_3=NM_CLIENTE_FORNECEDOR&mDataProp_4=DT_ASSINATURA&mDataProp_5=DS_AREA_RESPONSAVEL&sFilters={%22F_ID_ARQUIVAMENTO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22ID_ARQUIVAMENTO%22,%22Operador%22:%22eq%22,%22Valor%22:null},%22F_ID_CONTRATO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22ID_CONTRATO%22,%22Operador%22:%22eq%22,%22Valor%22:null},%22F_TP_DOCUMENTO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22TP_DOCUMENTO%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_NM_CLIENTE_FORNECEDOR%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22NM_CLIENTE_FORNECEDOR%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_NR_CNPJ%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22NR_CNPJ%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_NR_CPF%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22NR_CPF%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_DT_ASSINATURA%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22DT_ASSINATURA%22,%22Operador%22:%22having%22,%22Valor_ini%22:null,%22Valor_fin%22:null},%22F_DS_VALOR%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22DS_VALOR%22,%22Operador%22:%22like%22,%22Valor%22:null},%22F_DS_AREA_RESPONSAVEL%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22DS_AREA_RESPONSAVEL%22,%22Operador%22:%22eq%22,%22Valor%22:null},%22F_BL_ATIVO%22:{%22Model%22:%22Arquivamento%22,%22Coluna%22:%22BL_ATIVO%22,%22Operador%22:%22eq%22,%22Valor%22:%221%22}} since Thu Apr 23 13:20:04 2015 ---
*** HARAKIRI ON WORKER 50 (pid: 12758, try: 2) ***
DAMN ! worker 50 (pid: 12758) died, killed by signal 9 :( trying respawn ...