So this was a weird one. Got a page at 18:31 today that abc.xyz.com was down. FreeBSD 6.4-STABLE box. Jumped in the car and headed down to the datacenter, about 40 mins away. As I pulled into the parking lot, I get another page: abc.xyz.com is UP! Huh??
Go inside, ask the datacenter techs if they did anything. Nope, they didn't even know it was down. It's been safely locked in its cage, with nobody touching it, this entire time.
So I login, start poking around. All the logs go right up to 18:31, and then nothing. No error messages anywhere that I can find. But /var/log/messages does show something interesting... the box rebooted itself at 19:19:
So what would cause a box to lock up so bad it can't even respond to pings, sit there for 48 minutes, and then decide to reboot, all without a human even coming near it?
Go inside, ask the datacenter techs if they did anything. Nope, they didn't even know it was down. It's been safely locked in its cage, with nobody touching it, this entire time.
So I login, start poking around. All the logs go right up to 18:31, and then nothing. No error messages anywhere that I can find. But /var/log/messages does show something interesting... the box rebooted itself at 19:19:
Code:
Jul 21 17:47:24 abc ntpd[679]: kernel time sync status change 6001
Jul 21 18:21:30 abc ntpd[679]: kernel time sync status change 2001
Jul 21 19:19:34 abc syslogd: kernel boot file is /boot/kernel/kernel
Jul 21 19:19:34 abc kernel: Copyright (c) 1992-2008 The FreeBSD Project.
Jul 21 19:19:34 abc kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
Jul 21 19:19:34 abc kernel: The Regents of the University of California. All rights reserved.
Jul 21 19:19:34 abc kernel: FreeBSD is a registered trademark of The FreeBSD Foundation.
Jul 21 19:19:34 abc kernel: FreeBSD 6.4-STABLE #0: Sat Mar 7 01:08:35 PST 2009
So what would cause a box to lock up so bad it can't even respond to pings, sit there for 48 minutes, and then decide to reboot, all without a human even coming near it?