I have an Apache/2.2.22 (Linux/SUSE) and it automatically restarts every day at the same time. I have no cron jobs configured to do that on any user.
I started collecting minutelly snapshots of the status page and from that I found out that:
Restart Time: Friday, 31-Jan-2014 12:15:03 EET Restart Time: Saturday, 01-Feb-2014 12:15:04 EET Restart Time: Sunday, 02-Feb-2014 12:15:05 EET Restart Time: Monday, 03-Feb-2014 12:15:06 EET
From the miuntelly snapshots of the status page it turns out that no significance traffic occurst before the restart.
For each restart I get the following
/var/log/messages without anything else of interest:
2014-02-03T12:15:02.576970+02:00 foobar systemd: Reloading apache. 2014-02-03T12:15:03.225024+02:00 foobar start_apache2: Syntax OK 2014-02-03T12:15:03.298169+02:00 foobar systemd: Reloaded apache.
Any ideas why this is happening or where should I look at next?