PHP-FPM和Nginx： 502坏网关

Question

配置

• Ubuntu服务器11.10 64位
• 亚马逊AWS，Ec2，云端托管
• t1。微实例

在我写任何其他东西之前，我想声明我已经检查了nginx 502坏网关和nginx PHP-FPM 502坏网关线程，不幸的是，这在这方面对我没有帮助。

这个问题似乎很常见：nginx或php fpm的错误配置可能导致502坏网关错误，这是我一直无法解决的问题。请注意，即使在我转到我的域根目录时，也会出现这种情况，而不指定任何特定目录。

我正在运行一个AmazonEC2WebServer，启用了端口9000，打开了端口80，等等。

特别的问题是，我如何才能摆脱这个讨厌的错误？或者，更好的是，我如何才能让php5-fpm真正工作。

到目前为止我所做的尝试

大多数配置文件的一致编辑，特别是php-fpm.conf和nginx.conf。

i、 php fpm。形态

我添加了以下内容，但没有多大帮助：

;;;;;;;;;;;;;
; Fpm Start ;
;;;;;;;;;;;;;

;pm.start_servers = 20
;pm.min_spare_servers = 5
;pm.max_spare_servers = 35

现在，之后我尝试包括我的配置文件：

包括=/etc/php5/fpm/*. conf

这只会让我更难过。

完整配置

;;;;;;;;;;;;;;;;;;;;;
; FPM Configuration ;
;;;;;;;;;;;;;;;;;;;;;

; All relative paths in this configuration file are relative to PHP's install
; prefix (/usr). This prefix can be dynamicaly changed by using the
; '-p' argument from the command line.

; Include one or more files. If glob(3) exists, it is used to include a bunch of
; files from a glob(3) pattern. This directive can be used everywhere in the
; file.
; Relative path can also be used. They will be prefixed by:
;  - the global prefix if it's been set (-p arguement)
;  - /usr otherwise
;include=/etc/php5/fpm/*.conf

;;;;;;;;;;;;;;;;;;
; Global Options ;
;;;;;;;;;;;;;;;;;;

[global]
; Pid file
; Note: the default prefix is /var
; Default Value: none
pid = /var/run/php5-fpm.pid

; Error log file
; Note: the default prefix is /var
; Default Value: log/php-fpm.log
error_log = /var/log/php5-fpm.log

; Log level
; Possible Values: alert, error, warning, notice, debug
; Default Value: notice
log_level = notice

; If this number of child processes exit with SIGSEGV or SIGBUS within the time
; interval set by emergency_restart_interval then FPM will restart. A value
; of '0' means 'Off'.
; Default Value: 0
;emergency_restart_threshold = 0

; Interval of time used by emergency_restart_interval to determine when 
; a graceful restart will be initiated.  This can be useful to work around
; accidental corruptions in an accelerator's shared memory.
; Available Units: s(econds), m(inutes), h(ours), or d(ays)
; Default Unit: seconds
; Default Value: 0
emergency_restart_interval = 0

; Time limit for child processes to wait for a reaction on signals from master.
; Available units: s(econds), m(inutes), h(ours), or d(ays)
; Default Unit: seconds
; Default Value: 0
;process_control_timeout = 0

; Send FPM to background. Set to 'no' to keep FPM in foreground for debugging.
; Default Value: yes
daemonize = no

;;;;;;;;;;;;;
; Fpm Start ;
;;;;;;;;;;;;;

;pm.start_servers = 20
;pm.min_spare_servers = 5
;pm.max_spare_servers = 35

;;;;;;;;;;;;;;;;;;;;
; Pool Definitions ; 
;;;;;;;;;;;;;;;;;;;;

; Multiple pools of child processes may be started with different listening
; ports and different management options.  The name of the pool will be
; used in logs and stats. There is no limitation on the number of pools which
; FPM can handle. Your system will tell you anyway :)

; To configure the pools it is recommended to have one .conf file per
; pool in the following directory:
include=/etc/php5/fpm/pool.d/*.conf

二、nginx。形态

老实说，这个配置只是我访问过的几个网站的一小部分，但我可以告诉你，在502糟糕的网关业务之前，服务器运行良好（没有PHP working.Period.）。

问题主要在于某些事情非常非常错误。现在，当我尝试执行一个服务php5 fpm重启时，它挂在一个无限循环中，我猜这是什么，我甚至无法CTRL-C。

完整配置

user www-data;
worker_processes 1;
pid /var/run/nginx.pid;

events {
    worker_connections 64;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush off;
    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;

    ##
    # 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/x-javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

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

    server {
        listen 80;
        server_name ec2-xx-xx-xx-xx.compute-x.amazonaws.com;

        location ~ ^(.+\.php)(.*)$ {
            root   /home/wayvac/public;
            fastcgi_pass   unix:/var/run/php5-fpm.pid;  
            #fastcgi_pass   127.0.0.1:9000; #Un-comment this and comment "fastcgi_pass   unix:/var/run/php-fpm/php-fpm.sock;" if you are not using php-fpm.
            fastcgi_index  index.php;
            set $document_root2 $document_root;
            if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") { set $document_root2 $1$2; }
            if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") { set $document_root2 $1$2; }
            if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") { set $document_root2 $1$2; }
            if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") { set $document_root2 $1$2; }
            if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") { set $document_root2 $1$2; }
            fastcgi_split_path_info ^(.+\.php)(.*)$;
            fastcgi_param   SCRIPT_FILENAME $document_root2$fastcgi_script_name;
            fastcgi_param   PATH_INFO   $fastcgi_path_info;
            fastcgi_param   PATH_TRANSLATED $document_root2$fastcgi_path_info;
            include fastcgi_params;
            fastcgi_param  DOCUMENT_ROOT      $document_root2;
        }       

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

        location / {
            root /home/wayvac/public;   
            index index.html index.htm index.php;
        }

        location ~* \.(?:ico|css|js|gif|jpe?g|png)$ {
            # Some basic cache-control for static files to be sent to the browser
            expires max;
            add_header Pragma public;
            add_header Cache-Control "public, must-revalidate, proxy-revalidate";
        }

        #include drop.conf;
        #include php.conf;
    }
}




Answer 1

我做了所有这些类似的调整，但有时我会（每天）收到501/502个错误。

这是我在/etc/php5/fpm/pool上的设置。d/www.conf以避免501和502 nginx错误…服务器具有16Gb RAM。此配置适用于8Gb RAM服务器，因此…

sudo nano /etc/php5/fpm/pool.d/www.conf

然后为设置以下值：

pm.max_children = 70
pm.start_servers = 20
pm.min_spare_servers = 20
pm.max_spare_servers = 35
pm.max_requests = 500

更改后，重新启动php fpm

sudo service php-fpm restart

Answer 2

尝试设置这些值，它解决了快速cgi中的问题

fastcgi_buffer_size 16k;
fastcgi_buffers 4 16k;

Answer 3

如果有人发现这个页面遇到了我遇到的问题，我在这里找到了答案。

对于那些懒得点击并自己解决的人来说...；）

条件：

使用NGINX和PHP5.3的Ubuntu或Debian服务器运行良好，但将PHP升级到5.4会导致502个错误网关。查找在端口9000上运行的服务（通常运行netstat-lp或类似版本）不会返回任何结果。

修复方法：

打开/etc/php5/fpm/pool。d/www.conf并记下'listen'参数（在我的例子中，/var/run/php5 fpm.sock）：

; The address on which to accept FastCGI requests.
; Valid syntaxes are:
;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific address on
;                            a specific port;
;   'port'                 - to listen on a TCP socket to all addresses on a
;                            specific port;
;   '/path/to/unix/socket' - to listen on a unix socket.
; Note: This value is mandatory.
listen = /var/run/php5-fpm.sock

并将vhost中的fastcgi_pass变量替换为刚才注意到的位置。

所以这个示例symfony2配置（取自此处）：

  # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
  location ~ ^/(app|app_dev)\.php(/|$) {
    fastcgi_pass   127.0.0.1:9000;
    fastcgi_split_path_info ^(.+\.php)(/.*)$;
    include fastcgi_params;
    fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
    fastcgi_param  HTTPS              off;
  }

变成这样：

  # pass the PHP scripts to FastCGI server at /var/run/php5-fpm.sock
  location ~ ^/(app|app_dev)\.php(/|$) {
    fastcgi_pass unix:/var/run/php5-fpm.sock;
    fastcgi_split_path_info ^(.+\.php)(/.*)$;
    include fastcgi_params;
    fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
    fastcgi_param  HTTPS              off;
  }

然后重启nginx：

sudo /etc/init.d/nginx restart

注：替换~^/（应用程序开发）\。php（/|$）{与~^/index\.php（/|$）{如果您不在SF2上**

希望这能为某人节省一点时间：）

编辑

当然，您可以更改listen=/var/run/php5 fpm。短袜tolisten=127.0。/etc/php5/fpm/pool中的0.1:9000。d/www.conf然后重新启动php5 fpm（这将使您不必更改VHOST），但您必须假设他们出于某种原因将php5 fpm更改为通过套接字运行，而不是侦听端口9000。

编辑2

如果您仍然遇到502错误，请参阅此答案。