There's that pesky cron.hourly, too. I also remove the MARK messages in
syslog.
Adam Thornton wrote:
On Aug 31, 2006, at 8:16 AM, James Melin wrote:
Hello List!
I'm trying to discover what might possibly be running at 4:00 AM on
all my penguins that might cause excessive cumulative VM paging
(we're over
committed real by 12-18%) at one time.
Obviously something appears to be configured on all systems to do
the same thing at the same time.
That said here's /var/log/messages from that time period.
Aug 31 03:41:41 phalen -- MARK --
Aug 31 03:59:01 phalen /USR/SBIN/CRON[23721]: (root) CMD ( rm -f /
var/spool/cron/lastrun/cron.hourly)
Aug 31 04:14:01 phalen /USR/SBIN/CRON[23837]: (root) CMD ( rm -f /
var/spool/cron/lastrun/cron.daily)
If everybody is running their cron scripts at the exact same time,
that could do it.
Consider that one of the things that cron typically does as a daily
job is to run finds on the whole filesystem to find old backup files,
old log files, and so on, and remove them.
Try varying the time that cron.daily runs so it differs on each of
your systems in /etc/crontab.
Aug 31 04:16:57 phalen kernel: device-mapper: dm-mirror: Device
lookup failure
Aug 31 04:16:57 phalen kernel: device-mapper: error adding target
to table
Aug 31 04:17:09 phalen /etc/hotplug/block.agent[24023]: new block
device /block/dm-0
This doesn't look good either but maybe it's harmless.
Can't help you with rcd/rug. *I* wouldn't trust my tools to
automatically *apply* maintenance, although downloading it in the
background is pretty safe.
Adam
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Rich Smrcina
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