在配置nginx和uwsgi时，出现 "没有这样的文件或目录 "的错误。

Question

更新：如果我不使用socket，而使用 127.0.0.1:3031 而不是一切正常。

Nginx版本是1.6.3，uwsgi是2.0.11.1。

etcuwsgi.ini.ddaimaduan_preview.ini。

[uwsgi]
uid = uwsgi
gid = uwsgi
pidfile = /run/uwsgi/uwsgi.pid
emperor = /etc/uwsgi.d
stats = /run/uwsgi/stats.sock
emperor-tyrant = true
cap = setgid,setuid
logto = /var/log/uwsgi.log

etcuwsgi.daimaduan_preview.ini：

[uwsgi]
plugin = python,http
protocol = uwsgi
chdir = /var/www/daimaduan/preview/current
master = true
processes = 4
threads = 20
socket = /tmp/daimaduan-preview.sock
chmod-socket = 666
uid = vagrant
gid = vagrant
logto = /var/log/daimaduan/preview/uwsgi.log
virtualenv = /var/www/daimaduan/preview/venv
wsgi-file = deploy.wsgi

etcnginxconf.daimaduan.conf。

server {
    listen 80;
    server_name example.com;
    access_log /var/log/daimaduan/preview/access.log;
    error_log /var/log/daimaduan/preview/error.log;
    root /var/www/daimaduan/preview/current/daimaduan;

    location / {
        uwsgi_pass unix:/tmp/daimaduan-preview.sock;
        include uwsgi_params;
    }
}

但是，我在访问nginx的时候却发现了错误。http:/127.0.0.1。:

2015/10/06 14:14:04 [crit] 16946#0: *1 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 14:17:44 [crit] 16995#0: *1 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 14:28:13 [crit] 16995#0: *3 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 15:29:14 [crit] 16995#0: *5 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 15:30:52 [crit] 16995#0: *7 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 15:32:48 [crit] 16995#0: *9 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 15:37:14 [crit] 16995#0: *11 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 15:38:14 [crit] 16995#0: *13 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"
2015/10/06 15:38:21 [crit] 17577#0: *1 connect() to unix:/tmp/daimaduan-preview.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: , request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/daimaduan-preview.sock:", host: "127.0.0.1"

而且我很确定 /tmp/daimaduan-preview.sock 确实存在。我也检查了uwsgi日志。

*** Starting uWSGI 2.0.11.1 (64bit) on [Tue Oct  6 15:38:09 2015] ***
compiled with version: 4.8.3 20140911 (Red Hat 4.8.3-9) on 21 July 2015 16:01:10
os: Linux-3.10.0-123.el7.x86_64 #1 SMP Mon Jun 30 12:09:22 UTC 2014
nodename: localhost.localdomain
machine: x86_64
clock source: unix
pcre jit disabled
detected number of CPU cores: 1
current working directory: /etc/uwsgi.d
detected binary path: /usr/sbin/uwsgi
chdir() to /var/www/daimaduan/preview/current
your processes number limit is 3826
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 inherited UNIX address /tmp/daimaduan-preview.sock fd 3
Python version: 2.7.5 (default, Jun 24 2015, 00:41:19)  [GCC 4.8.3 20140911 (Red Hat 4.8.3-9)]
Set PythonHome to /var/www/daimaduan/preview/venv
Python main interpreter initialized at 0x865410
python threads support enabled
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 1342720 bytes (1311 KB) for 80 cores
*** Operational MODE: preforking+threaded ***
WSGI app 0 (mountpoint='') ready in 0 seconds on interpreter 0x865410 pid: 17132 (default app)
mountpoint  already configured. skip.
*** uWSGI is running in multiple interpreter mode ***
gracefully (RE)spawned uWSGI master process (pid: 17132)
spawned uWSGI worker 1 (pid: 17475, cores: 20)
spawned uWSGI worker 2 (pid: 17476, cores: 20)
spawned uWSGI worker 3 (pid: 17477, cores: 20)
spawned uWSGI worker 4 (pid: 17478, cores: 20)

它看起来也很正常。

这里有些问题。

1. 为什么 uid 和 gid 不见得会在 /etc/uwsgi.d/daimaduan.ini?
2. 如何改变所有权 /tmp/daimaduan-preview.sock? 我试过了 chown-socket 但失败
3. 为什么我得到 No such file or directory 误差 /var/log/daimaduan/preview/uwsgi.log?

Answer 1

把 daimaduan_preview.ini的套接字文件到 /run 而不是 /tmp. 像在 这个 答案，你的系统可能使用 命名间隔的临时目录这意味着每个服务只能看到自己的文件在 /tmp.

Answer 2

ngnix作为一个独立的进程运行，所以在启动应用程序之前，你需要停止gnix。

sudo service ngnix stop. 否则，socket myapp.socket 将不会被ngnix看到。即使当你做 ls /var/www/myapp/myapp.socket 在终端结果中确实出现了 ls 命令。因为 ngnix 在您使用 uwsgi myapp.ini 命令。ngnix的进程不知道该套接字是什么。myapp.socket 是 。所以避免这个问题的技巧是。

1. 停止ngnix使用 sudo service ngnix stop
2. 启动您的应用程序 uwsgi myapp.ini
3. 启动 ngnix sudo service ngnix start