Problems with Mod_fcgid.

[Christopher Ecklesdafer <christopher@xxxxxxxxxxxxxxx>]

I
 have an issue with mod_fcgid spawning new php processes and after some 
time it looses control over php-cgi. I see many php-cgi processes 
running for long time. When I check parent process ID I see it is init 
owning them. They aren’t zombies though. It means httpd lost control 
over these processes. For time being number of process grows to the 
point my server goes out of memory. Stopping and starting httpd doesn’t 
kill them. Only way to stop php-cgi processes is to send the kill signal
 directly to the process.

Here are my wrapper settings:

#!/bin/sh
 
                                                                                                                                    
#
 Do not change this file 
                                                                                                                    
PHPRC=/etc/
 
                                                                                                                                  
export
 PHPRC 
                                                                                                                                 
export
 PHP_FCGI_MAX_REQUESTS=5000 
                                                                                                            
export
 PHP_FCGI_CHILDREN=0 
                                                                                                                   
exec /usr/bin/php-cgi

Here is our mod_fcgid config settings:
                                                                                                                       

        PHP_Fix_Pathinfo_Enable 1 
                                                                                                            
        FcgidProcessTableFile /tmp/fcgidshm_aux7 
                                                                                             
        FcgidIPCDir /tmp/.fcgidsock_aux7 
                                                                                                     
        FcgidMinProcessesPerClass 0 
                                                                                                          
        FcgidMaxProcessesPerClass 70 
                                                                                                         
        FcgidMaxProcesses 8000 
                                                                                                               
        FcgidMaxRequestLen 1073741824 
                                                                                                        
        FcgidMaxRequestInMem 20971520 
                                                                                                        
        FcgidIdleTimeout 30 
                                                                                                                  
        FcgidIdleScanInterval 60 
                                                                                                             
        FcgidBusyTimeout 300 
                                                                                                                 
        FcgidBusyScanInterval 120 
                                                                                                            
        FcgidErrorScanInterval 20 
                                                                                                            
        FcgidZombieScanInterval 3 
                                                                                                            
        FcgidProcessLifeTime 60 
                                                                                                              
        FcgidIOTimeout 300 
                                                                                                                   


I
 see this problem on mod_fcgid 2.3.6 with Apache 2.2.3 distributed by 
Cloudlinux repository for CentoOS 5 as well as for most recent version 
of mod_fcgid 2.3.7 with Apache httpd 2.2.15 for Cent OS 6.2.

Only solution I have so far is script like one shown here: http://www.sonassi.com/knowledge-base/abandoned-php-fcgi-process-clean-up/

Screenshot showing example of a php-cgi processes that have lost parent control.
http://quick-markup.com/p/500f1d0461f16

**I
 have cronjob doing httpd graceful restart each hour. The issue here may
 be related to that cronjob. Although I haven’t observed it is caused by
 graceful restart. Usually it takes couple of days when I see php-cgi 
processes being old.

Is there anything else I should check in my system to eliminate this issue?

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