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Except for the optimizations and the additional ScriptSock directive noted below, mod_cgid behaves similarly to mod_cgi. See the mod_cgi summary for additional details about Apache and CGI.
On certain unix operating systems, forking a process from a multi-threaded server is a very expensive operation because the new process will replicate all the threads of the parent process. In order to avoid incurring this expense on each CGI invocation, mod_cgid creates an external daemon that is responsible for forking child processes to run CGI scripts. The main server communicates with this daemon using a unix domain socket.
This module is used by default instead of mod_cgi whenever a multi-threaded MPM is selected during the compilation process. At the user level, this module is identical in configuration and operation to mod_cgi. The only exception is the additional directive ScriptSock which gives the name of the socket to use for communication with the cgi daemon.
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По-простому: mod_cgid вовсе не аналог FastCGI, а способ быстрее fork()ать при использовании многопоточного MPM.
Вариант для распечатки
Программирование под UNIX (Public)
on
28-Ноя-05, 15:04 (MSK)
