Question

我已经使用了lighttpd很长时间了，因为它很快就可以用于繁忙的web应用程序快速cgi（PHP）

2或3个月前有时我得到了这个错误：

2015-07-06 17:58:55: (server.c.1398) [note] sockets enabled again
2015-07-06 17:58:55: (server.c.1446) [note] sockets disabled, out-of-fds
2015-07-06 17:58:59: (server.c.1398) [note] sockets enabled again
2015-07-06 17:58:59: (server.c.1446) [note] sockets disabled, out-of-fds
2015-07-06 17:59:05: (server.c.1398) [note] sockets enabled again
2015-07-06 17:59:05: (server.c.1446) [note] sockets disabled, out-of-fds
2015-07-06 17:59:10: (server.c.1398) [note] sockets enabled again
2015-07-06 17:59:10: (server.c.1446) [note] sockets disabled, out-of-fds
2015-07-06 17:59:14: (server.c.1398) [note] sockets enabled again
2015-07-06 17:59:14: (server.c.1446) [note] sockets disabled, out-of-fds
2015-07-06 17:59:18: (server.c.1398) [note] sockets enabled again
2015-07-06 17:59:18: (server.c.1446) [note] sockets disabled, out-of-fds
2015-07-06 17:59:22: (server.c.1398) [note] sockets enabled again
2015-07-06 17:59:22: (server.c.1446) [note] sockets disabled, out-of-fds
2015-07-06 17:59:26: (server.c.1398) [note] sockets enabled again
2015-07-06 17:59:26: (server.c.1446) [note] sockets disabled, out-of-fds

我使用的是版本1.4.29，现在升级到1.4.35之后问题仍然存在。从那时起，我一直在寻找非常不同的解决方案，并没有找到任何可以帮助我的方法。

一些相关的配置信息：

H 2。 lighttpd.conf

server.username  = "lighttpd"
server.groupname = "lighttpd"
server.event-handler = "linux-sysepoll"
server.max-fds = 4096 #same as ulimit -n
server.max-connections = 2048
server.stat-cache-engine = "simple"
server.max-keep-alive-idle = 5
server.max-keep-alive-requests = 4
server.max-read-idle = 30
server.max-write-idle = 360

H 2。快速cgi.conf

server.modules += ( "mod_fastcgi" )

fastcgi.server = ( ".php" =>
                   ( "php-local" =>
                     (
                       "socket" => "/tmp/php-fastcgi-1.socket",
#                      "socket" => "/tmp/php-fastcgi-1.socket"+var.PID,
                       "bin-path" => "/usr/bin/php-cgi",
                       "max-procs" => 30,
                       "broken-scriptfilename" => "enable",
                     )
                   ),
                   ( "php-tcp" =>
                     (
                       "host" => "127.0.0.1",
                       "port" => 9999,
                       "check-local" => "disable",
                       "broken-scriptfilename" => "enable",
                     )
                   ),
                   ( "php-tcp2" =>
                     (
                       "host" => "127.0.0.1",
                       "port" => 9998,
                       "check-local" => "disable",
                       "broken-scriptfilename" => "enable",
                     )
                   ),

                   ( "php-num-procs" =>
                     (
                       "socket" => "/tmp/php-fastcgi-2.socket",
                       "bin-path" => "/usr/bin/php-cgi",
                       "max-procs" => 30,
                       "bin-environment" => (
                         "PHP_FCGI_CHILDREN" => "30",
                         "PHP_FCGI_MAX_REQUESTS" => "2048",
                       ),

                       "broken-scriptfilename" => "enable",
                     )
                   ),
                )

此服务器专用于该应用程序。

运行时间超过四年且至少有2个具有大量访问权限的lighttpd php应用程序，该记录在2013年有14,000次独立访问和85,000次页面浏览，然后此记录没有限制的问题。如今，每天平均有8,000名访问者和44,000次页面浏览量。

Visual info about the machine

出了什么问题？

Answer 1

lighttpd 1.4保留已打开的（部分）文件描述符的内部计数。 lighttpd 1.4在内部计数（cur_fds + want_fds - src / server.c的1408行）达到lighttpd.conf的server.max-fds的90％时禁用服务器套接字

内部计数可能（未经证实）与实际使用的文件描述符数量不匹配。

如果再次发生这种情况，您会检查lighttpd服务器进程实际使用了多少fds吗？如果lighttpd服务器进程有pid 1234，那么检查Linux上进程的打开fds数

ls -1 /proc/1234/fd/ | wc -l

如果结果远低于server.max-fds（已设置为4096）的90％，则表明lighttpd内部fd计数存在错误。您可以转到http://redmine.lighttpd.net/projects/lighttpd/issues并注册一个帐户。然后，您将能够提交错误报告。

同样，如果这就是问题，您也可以查看您的应用程序，看看它遇到致命错误，死亡和重新启动的频率。

Lighttpd错误套接字被禁用，out-of-fds

1 个答案: