重启后1-2分钟从php-fpm“未指定输入文件”(“No input file specified” from php-fpm for 1-2 min after restart)

 使用php-fpm和nginx，一切正常，除了重启php-fpm后大约1-2分钟。 在此期间，将为所有 .php URL返回“未指定输入文件”。 1-2分钟后，一切都恢复正常，无需采取进一步行动。 
 
 /var/log/nginx/error.log中的示例条目： 
 
2014/03/04 09:21:22 [error] 1206#0: *55 FastCGI sent in stderr: "Unable to open primary script: /usr/share/nginx/html (Success)", client: xxx.aaa.bbb.ccc, server: www.example.com, request: "GET /xxx/index.php HTTP/1.1", host: "www.example.com"
 
 这是来自server.conf的服务器块： 
 
server {
    listen       443 ssl;
    server_name  www.example.com;

    ssl_certificate      /etc/nginx/ssl-bundle.crt;
    ssl_certificate_key  /etc/nginx/cert.key;

    ssl_session_cache shared:SSL:1m;
    ssl_session_timeout  5m;

    ssl_ciphers  HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers   on;

    root /usr/share/nginx/html;
    index  index.php index.html;

    location / {
      try_files $uri $uri/ $uri/index.php;
    }

    location ~ \.php {
      fastcgi_split_path_info ^(.+\.php)(.+)$;
      fastcgi_param PATH_INFO $fastcgi_path_info;
      fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
      fastcgi_pass php;
      fastcgi_index index.php;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
      include fastcgi_params;
    }
}
 
 和/etc/nginx/nginx.conf： 
 
http {
    ...

    sendfile        on;

    keepalive_timeout  65;
    charset utf-8;
    gzip on;
    gzip_static on;
    etag on;
    upstream php {
      server unix:/var/run/php5-fpm.sock;
    }
    open_file_cache max=1000 inactive=20s;
    open_file_cache_valid 30s;
    open_file_cache_min_uses 2;
    open_file_cache_errors on;
    keepalive_requests 100000;
    expires max;

    include /etc/nginx/conf.d/*.conf;
}
 
 任何想法如何解决它？ 重启php-fpm后只发生一段时间的事实似乎排除了一些常见的问题（例如权限），看起来更像是缓存？ 谢谢！ 

Using php-fpm with nginx, everything works OK, except for about 1-2 minutes after php-fpm is restarted. During that period, "No input file specified" is returned for all .php URLs. After 1-2 minutes, everything goes back to normal without further action.
 
Example entry in /var/log/nginx/error.log:
 
2014/03/04 09:21:22 [error] 1206#0: *55 FastCGI sent in stderr: "Unable to open primary script: /usr/share/nginx/html (Success)", client: xxx.aaa.bbb.ccc, server: www.example.com, request: "GET /xxx/index.php HTTP/1.1", host: "www.example.com"
 
Here's the server block from server.conf:
 
server {
    listen       443 ssl;
    server_name  www.example.com;

    ssl_certificate      /etc/nginx/ssl-bundle.crt;
    ssl_certificate_key  /etc/nginx/cert.key;

    ssl_session_cache shared:SSL:1m;
    ssl_session_timeout  5m;

    ssl_ciphers  HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers   on;

    root /usr/share/nginx/html;
    index  index.php index.html;

    location / {
      try_files $uri $uri/ $uri/index.php;
    }

    location ~ \.php {
      fastcgi_split_path_info ^(.+\.php)(.+)$;
      fastcgi_param PATH_INFO $fastcgi_path_info;
      fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
      fastcgi_pass php;
      fastcgi_index index.php;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
      include fastcgi_params;
    }
}
 
And /etc/nginx/nginx.conf:
 
http {
    ...

    sendfile        on;

    keepalive_timeout  65;
    charset utf-8;
    gzip on;
    gzip_static on;
    etag on;
    upstream php {
      server unix:/var/run/php5-fpm.sock;
    }
    open_file_cache max=1000 inactive=20s;
    open_file_cache_valid 30s;
    open_file_cache_min_uses 2;
    open_file_cache_errors on;
    keepalive_requests 100000;
    expires max;

    include /etc/nginx/conf.d/*.conf;
}
 
Any ideas how to fix it? The fact that it is only happening for a brief period after restarting php-fpm seems to rule out some common problems (e.g. permissions) and seems more like caching? Thanks!

原文：https://stackoverflow.com/questions/22176267