将数据保存到数据库时弹出 502 bad gateway 错误。
一旦用户登录到 django 应用程序 (OLE 7)。从 ldap 服务器中提取有关该用户的数据并保存在我的本地数据库(postgres)中。配置 nginx、gunicorn 后,它在本地服务器上运行良好,一旦用户登录网站而不是显示检索到的数据,它会显示 502 Bad gateway。我浏览了很多关于这个的 stackoverflow 帖子,有人说增加超时,检查 gunicorn 是否正在运行。我已经尝试了所有这些,但仍然无法正常工作。
nginx.conf
user nginx;
worker_processes 2;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
er nginx;
worker_processes 2;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/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"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
keepalive_timeout 300;
#gzip on;
upstream app_server {
server 10.111.xxx.xxx:8001 fail_timeout=0;
}
server{
listen 80;
server_name 10.111.xxx.xxx;
location = /favicon.ico { access_log off; log_not_found off; }
location /static/ {root /home/lisa/revcon;}
location / {
proxy_set_header Host $http_host;
proxy_set_header Connection "";
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_pass http://unix:/home/lisa/revcon/revcon.sock;
proxy_connect_timeout 500s;
proxy_read_timeout 600s;
}
views.py
def save_information(request):
associate_id = id_to_numeric(request.user.username)
ldap = Ldap()
associate_details = ldap.search(associate_id=associate_id)[0]
details = UserDetails(
associate_name=associate_details['name'],
associate_nbr=associate_id,
associate_email=associate_details['email'],
associate_department_id=id_to_numeric(associate_details['department']),
associate_mgr=associate_details['managerCN'],
associate_exec=associate_details['execCN'],
associate_org=associate_details['org'],
associate_image=img,
date_of_service=rcm_date,
title=associate_details['title'],
client=client,
lob=lob,
phone_number=associate_details['mobile'],
)
details.save()
messages.success(request, 'Profile created! ')
return redirect('/?submit=true')
nginx 错误日志如下所示:
2019/05/15 04:01:55 [error] 7602#7602: *1 upstream prematurely closed connection while reading response header from upstream, client: 10.111.044.xxx, server: 10.111.xxx.xxx, request: "POST /save_information HTTP/1.1", upstream: "http://unix:/home/lisa/revcon/revcon.sock:/save_information", host: "10.111.xxx.xxx", referrer: "http://10.111.xxx.xxx/pr/"
unicorn
从“django_session”中选择“django_session”。“session_key”,“django_session”,“session_data”,“django_session”。 expire_date"> '2019-05-15T09:04:53.974657+00:00'::timestamptz); args=('hzy3dsjxfzqxhds6kd5uyteux0gps9d1', datetime.datetime(2019, 5, 15, 9, 4, 53, 974657, tzinfo=))
(0.001) 选择“auth_user”。 ", "auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff", "auth_user"."is_active", "auth_user"."date_joined"FROM "auth_user"WHERE "auth_user". “编号”= 1;参数=(1,)
(0.001) SELECT (1) AS "a"FROM "CollectData_userdetails"WHERE "CollectData_userdetails"."associate_nbr"= '050667' LIMIT 1; args=(u'050667',)
解析模板“CreateUser.html”中的变量“img”时出现异常。
追溯(最近一次通话):
文件“/home/lisa/revcon/env/lib/python2.7/site-packages/django/template/base.py”,第 903 行,在 _resolve_lookup
(bit, current)) # 缺失的属性
VariableDoesNotExist:在 u'[{\'False\': False,\'None\': None,\'True\': True}, {u\'csrf_token\': ,\' 中查找键 [img] 失败user\': >,\'perms\': ,\'DEFAULT_MESSAGE_LEVELS\': {\'DEBUG\': 10,\'INFO\': 20,\'WARNING\': 30,\'SUCCESS\': 25,\'ERROR\': 40},\'messages\': , u\'request\': }, {}, {\'form\': }, {\'block\':\n, ,\n\n\n\n, , , , 关联\'>, , , , , , , , , ,\n\n\t\t\t , ,\\n\\t\\t\\t , ,\\n]>}]'
解析模板“bootstrap4/field.html”中的变量“标签”时出现异常。
它点击了这个 url url('save_information', views.save_information, name='save_information'), 然后失败。 502 错误。
最佳答案
我想通了。在我服务的/etc/systemd/system/gunicorn 中的 gunicorn.service 文件中。 我做了一个改变:增加了超时时间。 gunicorn 的默认超时时间为 30 秒,因此我更新为 120 秒。
[Unit]
Description=gunicorn daemon
After=network.target
[Service]
User=lisa
Group=nginx
Restart=on-failure
WorkingDirectory=/home/lisa/revcon
ExecStart=/home/lisa/revcon/env/bin/gunicorn --**timeout 120** --workers 5
--bind unix:/home/lisa/revcon/env.sock revcon.wsgi:application
[Install]
WantedBy=multi-user.target
~
它对我来说效果很好。
关于django - NGINX 502 错误网关 gunicorn 超时,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56161700/