調試502錯誤的網關錯誤 - Ubuntu，Nginx，Unicorn

我有一個EC2實例，試圖用Nginx和Unicorn運行Rails應用程序。調試502錯誤的網關錯誤 - Ubuntu，Nginx，Unicorn

我一直在約60秒後，得到一個502錯誤網關錯誤：

這裏就是我的nginx的錯誤日誌中獲得：

2017年2月10日18時03分38秒[錯誤] 13208＃13208：* 1上游過早在讀取來自上游的響應頭時關閉連接，客戶端： 174.25.146.24，服務器：_，請求：「GET/welcome HTTP/1.1」，上游：「http://unix:/home/rails/myapp/shared/sockets/unicorn.sock:/welcome」，主機： mydomain.com「

unicorn.stderr.log

E，[2017-02-13T00：58：12.456504＃13149]錯誤 - ：工人= 0 PID：16535 超時（31S> 30秒），殺E， [2017-02-13T00：58：12.459388＃13149] 錯誤 - ：收割＃ worker = 0我，[2017-02-13T00：58：12.459499＃13149]信息 - ：worker = 0 產卵..我，[2017-02-13T00：58：12.461390＃16810]信息 - ：工人= 0 派生pid = 16810我，[2017-02-13T00：58：12.461829＃16810]信息 - ：工人= 0準備好

nginx.conf

user rails; 
worker_processes auto; 
pid /run/nginx.pid; 

events { 
     worker_connections 1024; 
     # multi_accept on; 
} 

http { 

     ## 
     # Basic Settings 
     ## 

     sendfile on; 
     tcp_nopush on; 
     tcp_nodelay on; 
     keepalive_timeout 65; 
     types_hash_max_size 2048; 
     # server_tokens off; 

     # server_names_hash_bucket_size 64; 
     # server_name_in_redirect off; 

     include /etc/nginx/mime.types; 
     default_type application/octet-stream; 

     ## 
     # SSL Settings 
     ## 

     ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE 
     ssl_prefer_server_ciphers on; 

     ## 
     # Logging Settings 
     ## 

     access_log /var/log/nginx/access.log; 
     error_log /var/log/nginx/error.log; 

     ## 
     # Gzip Settings 
     ## 

     gzip on; 
     gzip_disable "msie6"; 

     # gzip_vary on; 
     # gzip_proxied any; 
     # gzip_comp_level 6; 
     # gzip_buffers 16 8k; 
     # gzip_http_version 1.1; 
     # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript; 

     # upstream unicorn { 
     # server unix:/home/rails/myapp/shared/sockets/unicorn.sock fail_timeout=0; 
     # } 
     ## 
     # Virtual Host Configs 
     ## 

     include /etc/nginx/conf.d/*.conf; 
     include /etc/nginx/sites-enabled/*; 
}

unicorn.rb

# set path to application 
app_dir = File.expand_path("../..", __FILE__) 
shared_dir = "#{app_dir}" 
working_directory app_dir 

print shared_dir 

# Set unicorn options 
worker_processes 2 
preload_app true 
timeout 30 
print '1' 

# Set up socket location 
listen "#{shared_dir}/shared/sockets/unicorn.sock", :backlog => 64 
print '2' 

# Logging 
stderr_path "#{shared_dir}/shared/log/unicorn.stderr.log" 
stdout_path "#{shared_dir}/shared/log/unicorn.stdout.log" 

print '3' 
# Set master PID location 
pid "#{shared_dir}/shared/pids/unicorn.pid" 
print '4'

網站可用/默認

upstream app { 
    # Path to Unicorn SOCK file, as defined previously 
    server unix:/home/rails/myapp/shared/sockets/unicorn.sock fail_timeout=0; 
} 

server { 
    listen 80; 
    server_name _; 

    root /home/rails/myapp/public; 

    try_files $uri/index.html $uri @app; 

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

    error_page 500 502 503 504 /500.html; 
    client_max_body_size 4G; 
    keepalive_timeout 10; 
}

權限在插座上：

srwxrwxrwx 1 rails rails 0 Feb 10 18:00 unicorn.sock

如何我的任何想法可以追蹤這一點？

來源

2017-02-10 99miles

獨角獸的日誌裏有什麼嗎？ – dimid

我剛剛在帖子的頂部添加了 – 99miles

你能提供'unicorn.stdout.log'的日誌嗎？ –

您的Rails應用程序無法在超時設置配置的時間內（當前爲30秒，由您的unicorn.rb中的timeout 30行配置）返回對Unicorn HTTP服務器的響應。

要麼增加timeout設置在unicorn.rb，或（優選地）調試爲什麼Rails應用程序正在> 30秒以響應請求。

來源

2017-02-13 01:38:22 wjordan

調試502錯誤的網關錯誤 - Ubuntu，Nginx，Unicorn

回答

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