Apache going down a lot

[amit290]

At various time of the day I get emails warning my about my web server service is down, and then gets restarted. Used to be 4am ish every morning, now its happening during the day as well. Nothings really changed on the server. Not added any more sites, not changed any configuration.

Email 1:
--------------------------------------------------------------------------------

The Plesk Web Server service on host ***** is down.
The problem was discovered on Jan 19, 2007 04:12 AM.
--------------------------------------------------------------------------------
Email 2:
--------------------------------------------------------------------------------
The Plesk Web Server service on host ***** has been started on Jan 19, 2007 04:22 AM.
--------------------------------------------------------------------------------


I've looked in my Apache error file, but cannot see anything in there which suggests why this may be happening.

Does anyone have any idea why this may be happening? or could tell me where else to search for a solution? I'm on Fedora 4, Plesk 8.1

Thanks in advance,


Watchdog Monthly Report

Watchdog is running since Mar 1, 2007 01:00 AM.
Watchdog is monitoring services:
Plesk Web Server
Web Server (Apache)
SMTP Server (QMail)
IMAP/POP3 Server (Courier-IMAP)
DNS Server (BIND)
MySQL
Plesk SpamAssassin
Watchdog is not monitoring disks.

Security scans number: 2.

Events:
[Feb 19, 2007 07:23 AM] 'Plesk Web Server' service started.
[Feb 19, 2007 07:18 AM] 'Plesk Web Server' service stopped.
[Feb 19, 2007 04:16 AM] 'Plesk Web Server' service started.
[Feb 19, 2007 04:11 AM] 'Plesk Web Server' service stopped.
[Feb 18, 2007 04:19 AM] 'Plesk Web Server' service started.
[Feb 18, 2007 04:14 AM] 'Plesk Web Server' service stopped.
[Feb 17, 2007 04:22 AM] 'Plesk Web Server' service started.
[Feb 17, 2007 04:17 AM] 'Plesk Web Server' service stopped.
[Feb 17, 2007 04:11 AM] 'Plesk Web Server' service stopped.
[Feb 17, 2007 01:20 AM] 'Plesk Web Server' service started.
[Feb 17, 2007 01:15 AM] 'Plesk Web Server' service stopped.
[Feb 16, 2007 04:05 PM] 'Plesk Web Server' service started.
[Feb 16, 2007 04:00 PM] 'Plesk Web Server' service stopped.
[Feb 16, 2007 10:57 AM] 'Plesk Web Server' service started.
[Feb 16, 2007 10:46 AM] 'Plesk Web Server' service stopped.
[Feb 16, 2007 10:26 AM] The 'Web Server (Apache)' service was released from monitoring because it failed frequently.
[Feb 16, 2007 10:00 AM] 'Web Server (Apache)' service stopped.
[Feb 16, 2007 04:22 AM] 'Plesk Web Server' service started.
[Feb 16, 2007 04:12 AM] 'Plesk Web Server' service stopped.
[Feb 16, 2007 02:36 AM] 'Plesk Web Server' service started.
[Feb 16, 2007 02:30 AM] 'Plesk Web Server' service stopped.
[Feb 15, 2007 05:49 PM] 'Plesk Web Server' service stopped.
[Feb 15, 2007 04:21 AM] 'Plesk Web Server' service started.
[Feb 15, 2007 04:16 AM] 'Plesk Web Server' service stopped.
[Feb 15, 2007 02:55 AM] 'Plesk Web Server' service started.
[Feb 15, 2007 02:50 AM] 'Plesk Web Server' service stopped.
[Feb 15, 2007 02:45 AM] 'Plesk Web Server' service stopped.
[Feb 14, 2007 02:27 PM] 'Plesk Web Server' service started.
[Feb 14, 2007 02:22 PM] 'Plesk Web Server' service stopped.
[Feb 14, 2007 02:16 PM] 'Plesk Web Server' service stopped.
[Feb 14, 2007 04:25 AM] 'Plesk Web Server' service started.
[Feb 14, 2007 04:19 AM] 'Plesk Web Server' service stopped.
[Feb 14, 2007 04:14 AM] 'Plesk Web Server' service stopped.
[Feb 13, 2007 04:21 AM] 'Plesk Web Server' service started.
[Feb 13, 2007 04:16 AM] 'Plesk Web Server' service stopped.
[Feb 13, 2007 04:10 AM] 'Plesk Web Server' service stopped.
[Feb 12, 2007 12:42 PM] 'Plesk Web Server' service started.
[Feb 12, 2007 12:37 PM] 'Plesk Web Server' service stopped.
[Feb 12, 2007 12:32 PM] 'Plesk Web Server' service stopped.
[Feb 12, 2007 04:27 AM] 'Plesk Web Server' service started.
[Feb 12, 2007 04:22 AM] 'Plesk Web Server' service stopped.
[Feb 12, 2007 04:17 AM] 'Plesk Web Server' service stopped.
[Feb 12, 2007 01:00 AM] Security scanning report is in the file /usr/local/psa/var/modules/watchdog/report/security_2007-02-12.
[Feb 11, 2007 04:19 AM] 'Plesk SpamAssassin' service started.
[Feb 11, 2007 04:19 AM] 'Plesk Web Server' service started.
[Feb 11, 2007 04:13 AM] 'Plesk SpamAssassin' service stopped.
[Feb 11, 2007 04:13 AM] 'Plesk Web Server' service stopped.
[Feb 11, 2007 04:07 AM] 'Plesk Web Server' service stopped.
[Feb 9, 2007 10:40 AM] 'Plesk Web Server' service started.
[Feb 9, 2007 10:35 AM] 'Plesk Web Server' service stopped.
[Feb 9, 2007 10:30 AM] 'Plesk Web Server' service stopped.
[Feb 9, 2007 05:27 AM] 'Plesk Web Server' service started.
[Feb 9, 2007 05:22 AM] 'Plesk Web Server' service stopped.
[Feb 9, 2007 05:16 AM] 'Plesk Web Server' service stopped.
[Feb 8, 2007 04:23 AM] 'Plesk Web Server' service started.
[Feb 8, 2007 04:17 AM] 'Plesk Web Server' service stopped.
[Feb 8, 2007 04:12 AM] 'Plesk Web Server' service stopped.
[Feb 7, 2007 04:24 AM] 'Plesk Web Server' service started.
[Feb 7, 2007 04:19 AM] 'Plesk Web Server' service stopped.
[Feb 7, 2007 04:14 AM] 'Plesk Web Server' service stopped.
[Feb 6, 2007 04:20 AM] 'Plesk Web Server' service started.
[Feb 6, 2007 04:10 AM] 'Plesk Web Server' service stopped.
[Feb 5, 2007 08:55 PM] 'Plesk Web Server' service started.
[Feb 5, 2007 08:50 PM] 'Plesk Web Server' service stopped.
[Feb 5, 2007 08:40 PM] 'Plesk Web Server' service started.
[Feb 5, 2007 08:35 PM] 'Plesk Web Server' service stopped.
[Feb 5, 2007 08:24 PM] 'Plesk Web Server' service stopped.
[Feb 5, 2007 08:19 PM] 'Plesk Web Server' service stopped.
[Feb 5, 2007 10:18 AM] 'Plesk Web Server' service started.
[Feb 5, 2007 10:07 AM] 'Plesk Web Server' service stopped.
[Feb 5, 2007 04:18 AM] 'Plesk Web Server' service started.
[Feb 5, 2007 04:13 AM] 'Plesk Web Server' service stopped.
[Feb 5, 2007 01:00 AM] Security scanning report is in the file /usr/local/psa/var/modules/watchdog/report/security_2007-02-05.
[Feb 4, 2007 04:21 AM] 'Plesk Web Server' service started.
[Feb 4, 2007 04:15 AM] 'Plesk Web Server' service stopped.
[Feb 4, 2007 04:10 AM] 'Plesk Web Server' service stopped.
[Feb 3, 2007 04:23 AM] 'Plesk Web Server' service started.
[Feb 3, 2007 04:18 AM] 'SMTP Server (QMail)' service stopped.
[Feb 3, 2007 04:18 AM] 'Plesk Web Server' service stopped.
[Feb 3, 2007 04:13 AM] 'Plesk Web Server' service stopped.
[Feb 2, 2007 03:01 PM] 'Plesk Web Server' service started.
[Feb 2, 2007 02:56 PM] 'Plesk Web Server' service stopped.
[Feb 2, 2007 02:51 PM] 'Plesk Web Server' service stopped.
[Feb 2, 2007 12:17 PM] 'Plesk SpamAssassin' service stopped.
[Feb 2, 2007 12:17 PM] 'Plesk Web Server' service started.
[Feb 2, 2007 12:05 PM] 'Plesk SpamAssassin' service stopped.
[Feb 2, 2007 12:05 PM] 'Plesk Web Server' service stopped.
[Feb 2, 2007 11:19 AM] The 'IMAP/POP3 Server (Courier-IMAP)' service was released from monitoring because it failed frequently.
[Feb 2, 2007 11:14 AM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 2, 2007 11:14 AM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 2, 2007 11:09 AM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 2, 2007 11:09 AM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 2, 2007 04:20 AM] 'Plesk Web Server' service started.
[Feb 2, 2007 04:15 AM] 'Plesk Web Server' service stopped.
[Feb 2, 2007 04:09 AM] 'Plesk Web Server' service stopped.
[Feb 1, 2007 07:23 AM] 'IMAP/POP3 Server (Courier-IMAP)' service started.
[Feb 1, 2007 07:23 AM] 'IMAP/POP3 Server (Courier-IMAP)' service started.
[Feb 1, 2007 07:18 AM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 1, 2007 07:18 AM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 1, 2007 04:21 AM] 'Plesk Web Server' service started.
[Feb 1, 2007 04:16 AM] 'Plesk Web Server' service stopped.
[Feb 1, 2007 04:10 AM] 'Plesk Web Server' service stopped.

 

[danliker]

is there something special in the apache error log ?
(on my server it is /var/log/apache2/error.log)

 

[amit290]

Nope, thats the weird thing. At the times I'm getting emails from watchdog, there is not even an entry in the error log file.

Mine's at /var/www/httpd/error.log

Could it be Watchdog being twitchy??

I've not been on my web site when the Watchdog emails me to say its been restarted, because its mostly early mornings when I'm in bed .

 

[Wintermute]

same thing here

Hey,

I get these a lot to...

Also SpamAssassin seems to go up and down a lot...every few minutes for like an hour then its fine...

Don't know why my CPU is so high in the numbers below...
I think the VPS may need to be scaled a little higher...

Watch dog report...

Average CPU load: 72.4912%.
Average RAM usage: 683963.6450.
Security scans number: 1.

Events:
[Feb 22, 2007 09:40 PM] 'Web Server (Apache)' service started.
[Feb 22, 2007 09:35 PM] 'Web Server (Apache)' service stopped.
[Feb 20, 2007 12:11 AM] The 'Tomcat' service was released from monitoring because it failed frequently.
[Feb 19, 2007 11:46 PM] 'Tomcat' service stopped.
[Feb 19, 2007 11:38 PM] 'Tomcat' service stopped.
[Feb 19, 2007 09:52 PM] The 'Tomcat' service was released from monitoring because it failed frequently.
[Feb 19, 2007 09:32 PM] 'Tomcat' service stopped.
[Feb 19, 2007 09:27 PM] 'Tomcat' service stopped.
[Feb 19, 2007 10:33 AM] 'DNS Server (BIND)' service started.
[Feb 19, 2007 10:33 AM] 'Web Server (Apache)' service started.
[Feb 19, 2007 10:33 AM] 'Plesk Web Server' service started.
[Feb 19, 2007 09:23 AM] 'Web Server (Apache)' service started.
[Feb 19, 2007 09:23 AM] 'Plesk Web Server' service started.
[Feb 19, 2007 05:14 AM] 'Web Server (Apache)' service started.
[Feb 19, 2007 05:14 AM] 'Plesk Web Server' service started.
[Feb 19, 2007 01:00 AM] Security scanning report is in the file /usr/local/psa/var/modules/watchdog/report/security_2007-02-19.
[Feb 19, 2007 12:27 AM] 'Plesk Web Server' service started.
[Feb 18, 2007 11:46 PM] 'Plesk Web Server' service stopped.
[Feb 18, 2007 11:41 PM] The 'IMAP/POP3 Server (Courier-IMAP)' service was released from monitoring because it failed frequently.
[Feb 18, 2007 11:31 PM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 18, 2007 11:31 PM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 18, 2007 11:31 PM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.
[Feb 18, 2007 11:31 PM] 'IMAP/POP3 Server (Courier-IMAP)' service stopped.

 

[blank_page]

HEllo,

I would not use watchdog by any means.
I do not believe that it breaks apache , but surely it was the only one that conflicted with qmail. No other software ever did.

 

[mcbryde]

I have 3 servers running Plesk on Linux. ALL 3 have this problem! It must be a Plesk software problem!

 

[amit290]

Im still getting these. Its Plesk control panel going down not Apache I think.

Anyone got a suggestion?

I've looked at the backup times, and cron jobs. Cant see a pattern related to them. Its weird.

 

[mr_exclusive]

warn.log

try to increse memory for mysql at:

/etc/my.cnf

 

[amit290]

Have tried increasing the memory on MySQL - no joy.

Cant find warn.log

 

[amit290]

I dont know if this is a solution as such, but I've increased the watchdog monitoring timeout against the "Plesk Web Server" from 10 seconds to 30 seconds, and I havent had a single e-mail warning me its gone down in the past 2 days.

Just thought I'd let you know....

 

[pdreissen]

I really think the only good solution to this is rpm -e psa-watchdog.

I was having several same issues, and have come to the solution to remove it because it is really a useless piece of software!