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Reply to topic   Topic: Apache child process is restarting
Author
mpiche



Joined: 10 Apr 2008
Posts: 9

PostPosted: Mon 14 Apr '08 20:48    Post subject: Apache child process is restarting Reply with quote

Since a couple of months, Apache child process is restarting. At the beginning it only happened 2-3 times a week, but the problem have increase in the last month. Apache is now restarting 2-10 times each day (the more traffic we have, the more often it restarts).

When Apache is restarting, we have the following lines in the error log :

Code:
[Mon Apr 14 13:00:35 2008] [notice] Parent: child process exited with status 3221225477 -- Restarting.
[Mon Apr 14 13:00:37 2008] [notice] Apache/2.0.58 (Win32) PHP/5.2.0 mod_ssl/2.0.54 OpenSSL/0.9.8b configured -- resuming normal operations
[Mon Apr 14 13:00:37 2008] [notice] Server built: Apr 29 2006 17:47:10
[Mon Apr 14 13:00:37 2008] [notice] Parent: Created child process 3148
[Mon Apr 14 13:00:37 2008] [notice] Disabled use of AcceptEx() WinSock2 API
[Mon Apr 14 13:00:38 2008] [notice] Child 3148: Child process is running
[Mon Apr 14 13:00:38 2008] [notice] Child 3148: Acquired the start mutex.
[Mon Apr 14 13:00:38 2008] [notice] Child 3148: Starting 250 worker threads.
[Mon Apr 14 13:00:38 2008] [notice] Child 3148: Listening on port 443.
[Mon Apr 14 13:00:38 2008] [notice] Child 3148: Listening on port 80.

Sometime the status is 2147483655, but it is mostly 3221225477.

Our configuration is :

Windows 2003 Server
Apache/2.0.58 (Win32)
PHP/5.2.0 (Apache module)
mod_ssl/2.0.54 (OpenSSL/0.9.8b)


I have look for an answer on Google and on differents forums, but nothing have solved our problem so far.

Thanks for the help !
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Steffen
Moderator


Joined: 15 Oct 2005
Posts: 3092
Location: Hilversum, NL, EU

PostPosted: Mon 14 Apr '08 21:13    Post subject: Reply with quote

It's a well known issue and discussed here more. PHP (special its extension modules) is mostly bloating the server when PHP runs as module.

It is advised to try to run php with mod_fcgid (Fastcgi)

There are advantages to running PHP with FCGI. Separating the PHP code from the web server removes 'bloat' from the main server, and improves the performance of non-PHP requests. Secondly, having one permanent PHP process as opposed to one per apache process means that shared resources like persistent MySQL connections are used more efficiently. And maybe even more important is stability, php is not shutting down or restarting Apache anymore.

You can also try upgrading your php to the latest 5.2.5 , this is in the PHP 5.2.4 Change log:

Fixed bug #41713 (Persistent memory consumption on win32 since 5.2). (Dmitry)


Steffen
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Steffen
Moderator


Joined: 15 Oct 2005
Posts: 3092
Location: Hilversum, NL, EU

PostPosted: Mon 14 Apr '08 21:23    Post subject: Reply with quote

Oops.., overlooked. I see you run a legacy/old Apache/2.0.58 , we have not anymore mod_fcgid available for Apache 2.0.X

Steffen
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mpiche



Joined: 10 Apr 2008
Posts: 9

PostPosted: Mon 14 Apr '08 22:02    Post subject: Reply with quote

We will upgrade the server in a couple of weeks and try mod_fcgid. I hope this will solve the problem.

Thank you.
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mpiche



Joined: 10 Apr 2008
Posts: 9

PostPosted: Wed 16 Apr '08 20:44    Post subject: Reply with quote

Like your advice, we are currently testing FastCGI on our developpement server.

The developpement configuration is :
Windows 2003 Server
Apache 2.2.8 from ApacheLounge with mod_ssl/2.2.8 OpenSSL/0.9.8g
PHP 5.2.5 (mod_fcgid)

I've added in my httpd.conf the following lines for FCGI (I have disabled php5_module and enabled mod_fcgid) :

Code:
<IfModule mod_fcgid.c>   
   IPCCommTimeout 40
   IPCConnectTimeout 10
   MaxProcessCount 8
   OutputBufferSize 64
   ProcessLifeTime 240
   MaxRequestsPerProcess 500

   DefaultInitEnv PHPRC "c:/php/"
   DefaultInitEnv PATH "c:/php;C:/Apache2/bin;C:/WINDOWS/system32;C:/WINDOWS;C:/Ora10g/BIN;c:/program files/imagemagick-6.2.5-q16"
   DefaultInitEnv SystemRoot "C:/Windows"
   DefaultInitEnv SystemDrive "C:"
   DefaultInitEnv TEMP "C:/WINDOWS/TEMP"
   DefaultInitEnv TMP "C:/WINDOWS/TEMP"
   DefaultInitEnv windir "C:/WINDOWS"
   DefaultInitEnv PHP_FCGI_CHILDREN 4

  AddHandler fcgid-script .php
  <Directory "D:/htdocs">
     Options +ExecCGI
     FCGIWrapper "C:/PHP/php-cgi.exe" .php
     Order allow,deny
     Allow from all
     Satisfy any
  </Directory>
</IfModule>


The web pages seem to be working fine, but we have sometime the following errors in the Windows Application Error log :

Reporting queued error: faulting application php-cgi.exe, version 5.2.5.5, faulting module php5ts.dll, version 5.2.5.5, fault address 0x0000abe6.

The fault adress is different each time.

Thanks again for your help !
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