use*_*118 8 linux nginx django wsgi gunicorn
在这些配置了 django、gunicorn、supervisor 和 nginx 的服务器上运行非常高的流量。但很多时候我往往会看到 502 错误。所以我检查了 nginx 日志以查看什么错误,这是记录的内容:
[错误] 2388#0:*208027 connect() to unix:/tmp/gunicorn-ourapp.socket 在连接到上游时失败(11:资源暂时不可用)
任何人都可以帮助调试可能导致这种情况发生的原因吗?
这是我们的 nginx 配置:
sendfile on;
tcp_nopush on;
tcp_nodelay off;
listen 80 default_server;
server_name imp.ourapp.com;
access_log /mnt/ebs/nginx-log/ourapp-access.log;
error_log /mnt/ebs/nginx-log/ourapp-error.log;
charset utf-8;
keepalive_timeout 60;
client_max_body_size 8m;
gzip_types text/plain text/xml text/css application/javascript application/x-javascript application/json;
location / {
proxy_pass http://unix:/tmp/gunicorn-ourapp.socket;
proxy_pass_request_headers on;
proxy_read_timeout 600s;
proxy_connect_timeout 600s;
proxy_redirect http://localhost/ http://imp.ourapp.com/;
#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 $my_scheme;
#proxy_set_header X-Forwarded-Ssl $my_ssl;
}
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我们已经将 Django 配置为在 Gunicorn 中作为通用 WSGI 应用程序运行。Supervisord 用于启动 gunicorn 工人:
home/user/virtenv/bin/python2.7 /home/user/virtenv/bin/gunicorn --config /home/user/shared/etc/gunicorn.conf.py daggr.wsgi:application
这是 gunicorn.conf.py 的样子:
import multiprocessing
bind = 'unix:/tmp/gunicorn-ourapp.socket'
workers = multiprocessing.cpu_count() * 3 + 1
timeout = 600
graceful_timeout = 40
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有谁知道我可以从哪里开始挖掘以查看可能导致问题的原因?
这是我的 ulimit -a 输出在服务器上的样子:
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 59481
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 50000
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 1024
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
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