How to solve Lighttpd + fastcgi + php problems in Linux

I am eager to learn how to solve the Linux Lighttpd + fastcgi + php problem-Linux Enterprise Application-Linux server application information. Here is the details. I encountered a very headache and was eager to ask experts for help:

Problem description:
Lighttpd + fast cgi + php build a website with PHP pages. A large number of CLOSE_WAIT status connections are accumulated at intervals (<1 day). If these connections are not processed, they will never disappear. When the number of such connections reaches 10-20, the server cannot accept the request.

Operating System:
Linux (Fedora 10)

Lighttpd version:
1.4.24

Php version:
5.2.9 (cli)

Settings related to fast-cgi in the conf file of Lighttpd:

Fastcgi. server = (". php" =>
("Host" => "127.0.0.1 ",
"Port" = & gt; 12010,
"Bin-path" => "/usr/bin/php-cgi ",
"Max-procs" => 4,
"Bin-environment" => (
"PHP_FCGI_CHILDREN" => "8 ",
"PHP_FCGI_MAX_REQUESTS" => "1000"
),
"Broken-scriptfilename" => "enable"
)))

Server. max-keep-alive-requests = 0 // currently, the keep-alive support is canceled because the keep-alive is more serious.

Possible settings related to fast-cgi in php. ini:

Ignore_user_abort = off
Max_execution_time = 60; Maximum execution time of each script, in seconds
Max_input_time = 60; Maximum amount of time each script may spend parsing request data