Plesk Web Server service is down

[IGonza]

Hello,

Almost everyday my server goes down. Watchdog monitor log has the records:
[CET Nov 24 00:34:20] HTTP: error receiving data -- Resource temporarily unavailable
[CET Nov 24 00:34:20] 'plesk_apache' failed protocol test [HTTP] at INET[localhost:8443]
[CET Nov 24 00:34:21] 'plesk_apache' trying to restart
[CET Nov 24 00:34:22] 'plesk_apache' stop: /usr/local/psa/admin/bin/httpsdctl
[CET Nov 24 00:34:24] 'plesk_apache' start: /usr/local/psa/admin/bin/httpsdctl
[CET Nov 24 00:39:33] 'plesk_apache' connection passed

Is there a way to know what causes that problem?

Thanks,
Igor.

 

[unika]

it is known problem caused by small connection timeout in watchdog settings (5 seconds) which may cause Watchdog detect apche down on busy systems.

By default Watchdog expects services to respond within 5 seconds. So I suggest you to go to
Modules > Watchdog > apache

and change 'Connection timeout' parameter from 5 to a larger value, e.g. 20.

That usually eliminates such problems. If it will not help, try to disable watchdog (because apache itself works fine).

 

[IGonza]

Thanks for your answer.
I set apache and Plesk Web Server modules to 20 secs...
/usr/local/psa/admin/bin/httpsdctl - in the settings that command is for Plesk Web Server modules.
I will wait a few days and see if the server works fine.

Thanks,
Igor.