02-08-2010
Quote:
Originally Posted by
zaxxon
Hm, if you have nothing set up that tracks stuff like this and there is no more details in /var/log/messages, I would set up some ps aux, maybe in combination with pmap and compare the numbers of memory usage from a fresh start to when it is about to have low memory (check with free or cat /proc/meminfo) triggered by cron every 10 minutes maybe.
Hi zaxxon!
Thanks for the prompt response.
That's a great idea. So there is no native log file or daemon that tracks this sort of information in RHEL? I wanted to find out the script/user that used up all the memory, so I can avoid situations like this in the future.
If there is no such service, I will create the cron job.
Cheers,
Dave
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LEARN ABOUT FREEBSD
atrun
ATRUN(8) BSD System Manager's Manual ATRUN(8)
NAME
atrun -- run jobs queued for later execution
SYNOPSIS
atrun [-l load_avg] [-d]
DESCRIPTION
Atrun runs jobs queued by at(1).
Root's crontab(5) file /etc/crontab has to contain the line
*/5 * * * * root /usr/libexec/atrun
so that atrun gets invoked every five minutes.
At every invocation, atrun will start all the jobs in the lowercase queues whose start time has elapsed. In addition, if the load average
over the last minute was less than the specified limit then a maximum of one batch job (denoted by the uppercase queues) is started.
Before starting a job, atrun will check the status of its owner's account with pam(3) and refuse to run the job if the account is unavail-
able, e.g., locked out or expired.
OPTIONS
-l load_avg
Specify a limiting load factor, over which batch jobs should not be run, instead of the default of 1.5 * number of active CPUs.
-d Debug; print error messages to standard error instead of using syslog(3).
WARNINGS
For atrun to work, you have to start up a cron(8) daemon.
FILES
/etc/pam.d/atrun pam.conf(5) configuration file for atrun
/var/at/jobs Directory containing job files
/var/at/spool Directory containing output spool files
SEE ALSO
at(1), crontab(1), pam(3), syslog(3), crontab(5), pam.conf(5), cron(8)
BUGS
The functionality of atrun should be merged into cron(8).
BSD
October 30, 2012 BSD