[CentOS-virt] can cron.daily crash my dom0s?
rupertt at gmail.com
Mon Aug 18 09:07:29 UTC 2008
I have 2 servers which share 2 partitions with drbd, on each machine
runs one VM on the drbd device,
so that I have primary/secondary and secondary/primary drbd devices.
There are also some more XEN VM´s that only do aa mysql replication
and one is standalone.
In the last 4 weeks I had 2 incidents where both machines did a sudden
reboot, first one machine and 2 minutes later the other one.
I cant find anything in the logfiles, only that a few seconds before
the secondary drbd device got a timeout
(Aug 18 04:02:14 xen-A1 kernel: drbd1: PingAck did not arrive in
time.) the cron.daily started:
Aug 18 04:02:01 xen-B1 crond: (root) CMD (run-parts /etc/cron.daily)
Aug 18 04:02:01 xen-B1 anacron: Updated timestamp for job
`cron.daily' to 2008-08-18
Aug 18 04:06:06 xen-B1 crond: (CRON) STARTUP (V5.0)
the last line seems to be the reboot.
here the content of my cron.daily folder.
[root at xen-B1.blab:/etc/cron.daily]# ls
0anacron 0logwatch cups logrotate makewhatis.cron mlocate.cron
prelink rpm tmpwatch
I had also heartbeat running on the machines, after the last crash I
thougt it was heartbeat that rebooted the machines, so I disabled it,
but now I see it isnt heartbeat that causes these reboots.
I use centos 5.1 with no selfcompiled packages.
Why are my machines doing this, and how to fix this?
greetings and thanks
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