ruby-on-rails – 连接到上游的connect()到unix：/var/run/unicorn.sock失败

我跟踪ruby on rails一个app点击部署.数据库做得很好,即使我检查rails控制台一切正常

017/02/26 15:34:17 [error] 18564#0: *31 connect() to unix:/var/run/unicorn.sock failed (111: Connection refused) while connecting to upstream,client: 121.52.156.57,server: _,request: "GET / HTTP/1.1",upstream: "http://unix:/var/run/unicorn.sock:/",host: "188.166.157.124"
2017/02/26 15:35:42 [error] 32360#0: *1 upstream timed out (110: Connection timed out) while reading response header from upstream,client: 119.155.34.115,upstream: "http://unix:/var/run/unicorn.sock/",host: "188.166.157.124"
2017/02/26 15:42:38 [error] 6296#0: *1 upstream timed out (110: Connection timed out) while reading response header from upstream,client: 119.152.140.90,host: "188.166.157.124"

uncorn.conf是

listen "unix:/var/run/unicorn.sock"
worker_processes 4
user "rails"
working_directory "/home/rails/company_startup"
pid "/var/run/unicorn.pid"
stderr_path "/var/log/unicorn/unicorn.log"
stdout_path "/var/log/unicorn/unicorn.log"

nginx是

upstream app_server {
server unix:/var/run/unicorn.sock fail_timeout=0;
}

server {
listen   80;
root /home/rails/nehbor-webserver/public;
server_name _;
index index.htm index.html;
client_max_body_size 1M;
location / {
        try_files $uri/index.html $uri.html $uri @app;
}

location ~* ^.+.(jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|mp3|flv|mpeg|avi)${
                try_files $uri @app;
        }

 location @app {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://app_server;
}
}

listen 3000 # listen to port 3000 on all TCP interfaces
listen "127.0.0.1:3000"  # listen to port 3000 on the loopback interface
listen "/path/to/.unicorn.sock" # listen on the given Unix domain socket
listen "[::1]:3000" # listen to port 3000 on the IPv6 loopback interface

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