plesk httpd service getting down

[AnupHD]

I have installed Plesk 9.5 on CentOS VPS. My problem is http service of plesk getting down
more than 10 times in single day. It needs to restart manually . It only hosts 28 domains .

Here are the log file content at the time when http service getting down :

[Fri Jul 13 15:52:35 2012] [notice] mod_bw : Memory Allocated 0 bytes (each conf takes 28 bytes)
[Fri Jul 13 15:52:35 2012] [notice] mod_bw : Version 0.8 - Initialized [0 Confs]
[Fri Jul 13 15:52:35 2012] [warn] No JkShmFile defined in httpd.conf. Using default /etc/httpd/logs/jk-runtime-status
PHP Warning: Directive 'safe_mode' is deprecated in PHP 5.3 and greater in Unknown on line 0
[Fri Jul 13 15:52:35 2012] [notice] mod_python: Creating 4 session mutexes based on 10 max processes and 0 max threads.
[Fri Jul 13 15:52:35 2012] [notice] Apache configured -- resuming normal operations
[Fri Jul 13 15:53:51 2012] [error] server reached MaxClients setting, consider raising the MaxClients setting

Is anyone help me to resolve this.

Thanks

 

[Dreiy83]

This is the problem: server reached MaxClients setting, consider raising the MaxClients setting

For some reason Plesk on a VPS is limiting httpd to 10 clients.
Edit /etc/httpd/conf.d/swtune.conf and increase the number.

 

[abdi]

These instructions can also help in optimizing apache

http://emergent.urbanpug.com/?p=60