Eu tenho uma nova instalação de nginx e ruby on rails. Mas isso me dá um '500 Internal Server Error' durante o teste.
O error.log do meu aplicativo tem o seguinte:
2014/05/01 17:27:15 [alert] 1423#0: *6892 768 worker_connections are not enough while connecting to upstream, client: 24.15.27.113, server: example.com, request: "GET / HTTP/1.0", upstream: "http://24.15.27.113:80/", host: "myapp"
2014/05/01 17:27:16 [alert] 1423#0: *7656 768 worker_connections are not enough while connecting to upstream, client: 24.15.27.113, server: example.com, request: "GET /favicon.ico HTTP/1.0", upstream: "http://24.15.27.113:80/favicon.ico", host: "myapp"
2014/05/01 17:45:50 [alert] 1453#0: *766 768 worker_connections are not enough while connecting to upstream, client: 24.15.27.113, server: example.com, request: "GET / HTTP/1.0", upstream: "http://24.15.27.113:80/", host: "myapp"
2014/05/01 17:45:50 [alert] 1453#0: *1530 768 worker_connections are not enough while connecting to upstream, client: 24.15.27.113, server: example.com, request: "GET /favicon.ico HTTP/1.0", upstream: "http://24.15.27.113:80/favicon.ico", host: "myapp"
O nginx.conf tem o seguinte:
user www-data;
worker_processes 4;
pid /var/run/nginx.pid;
events {
worker_connections 768;
}
http {
##
# Basic Settings
##
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# Logging Settings
##
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
##
# Gzip Settings
##
gzip on;
gzip_disable "msie6";
##
# Virtual Host Configs
##
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
fastcgi_buffers 8 16k;
fastcgi_buffer_size 32k;
}
arquivo de configuração myapp.example.com:
upstream myapp {
#server 24.15.27.113;
#server 24.15.27.113:3001;
#server 24.15.27.113:3002;
server 127.0.0.1:3000;
server 127.0.0.1:3001;
#server 127.0.0.1:3002;
}
server {
listen 80;
server_name .example.com;
access_log /var/www/myapp.example.com/log/access.log;
error_log /var/www/myapp.example.com/log/error.log;
root /var/www/myapp.example.com;
index index.html;
location / {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
try_files /system/maintenance.html $uri $uri/index.html $uri.html @ruby;
}
location @ruby {
proxy_pass http://myapp;
}
}
Depois de voltar a usar ip 127.0.0.1:3000 e 127.0.0.1:3001 dentro do bloco upstream, o servidor gerou os erros:
2014/05/05 10:34:39 [error] 6158#0: *2 no live upstreams while connecting to upstream, client: 52.74.130.210, server: example.com, request: "GET /favicon.ico HTTP/1.1", upstream: "http://127.0.0.1:3001”, host: "24.15.27.113"
2014/05/05 10:34:39 [error] 6158#0: *2 no live upstreams while connecting to upstream, client: 52.74.130.210, server: example.com, request: "GET /favicon.ico HTTP/1.1", upstream: "http://127.0.0.1:3000/", host: "24.15.27.113"
2014/05/05 10:34:39 [error] 6158#0: *2 no live upstreams while connecting to upstream, client: 52.74.130.210, server: example.com, request: "GET /favicon.ico HTTP/1.1", upstream: "http://myapp/favicon.ico", host: "24.15.27.113"
Atualização 05/05/2014:
Eu corri o seguinte comando para verificar a conexão:
telnet 127.0.0.1 3000
e o resultado foi:
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused
Eu tentei reiniciar o servidor thin, mas recebi mensagens de erro.
thin restart -C /etc/thin/myapp.example.com -o 3000
Erro:
/usr/local/rvm/gems/ruby-2.1.1/gems/thin-1.6.2/lib/thin/daemonizing.rb:129:in 'send_signal': Can't stop process, no PID found in tmp/pids/thin.3000.pid (Thin::PidFileNotFound)
from /usr/local/rvm/gems/ruby-2.1.1/gems/thin-1.6.2/lib/thin/daemonizing.rb:111:in 'kill'
from /usr/local/rvm/gems/ruby-2.1.1/gems/thin-1.6.2/lib/thin/controllers/controller.rb:94:in 'block in stop'