4:00 PM question

[gogalthorp]

At 4:00 PM each day my hard drive becomes very active. I assume it is doing some optimization. The question is where is this time set??

I'd like to change it to a more convenient time

I've looked at cron as root (GUI) and I can't see it scheduled there. There is just a small performance hit during the process which last for 2-5 minutes, but it is annoying

[Dodge_G1]

Could it be your Anti Virus running a scheduled scan?

[gogalthorp]

Could it be your Anti Virus running a scheduled scan?

Do I have a anti-Virus?? I never installed one. Is there one installed by default?

[gogalthorp]

Could it be your Anti Virus running a scheduled scan?

Do I have a anti-Virus?? I never installed one. Is there one installed by default?

[oldcpu]

Do I have a anti-Virus?? I never installed one. Is there one installed by default?

No such thing (by default).

I know you stated you looked, but are you certain its not a cron job?

[gogalthorp]

No such thing (by default).

I know you stated you looked, but are you certain its not a cron job?

Does not seem to be. Went to the root GUI and looked in the list There was only one entry and that for root. If memory serves (not root now) it was execute some cron command every 5 minutes. That was it no other for any other user. It is possible that this job is triggering what ever is happening. But the actuall schedule must be set somewhere else. The first time I installed Suse it happened at 11:00PM ( a much better time). After I reinstalled it changed to 4:00PM

This is an annoyance rather then a problem but I'd sure like to know what is happening. And I would love to change the time.

[oldcpu]

Does not seem to be. Went to the root GUI and looked in the list There was only one entry and that for root. If memory serves (not root now) it was execute some cron command every 5 minutes.

Did you look under /etc/cron.daily, to see if there is anything there that is enabled?

You could also examine /etc/crontab.

And you are certain this only occurs at 4pm, and not at other times as well?

[gogalthorp]

Did you look under /etc/cron.daily, to see if there is anything there that is enabled?

You could also examine /etc/crontab.

And you are certain this only occurs at 4pm, and not at other times as well?

There are a fair number of scripts.

beagle-crawl-system       suse.de-check-battery  suse.de-update-preload
logrotate                 suse.de-clean-core     suse-do_mandb
suse-clean_catman         suse.de-clean-tmp      suse-tetex
suse.de-backup-rc.config  suse.de-cron-local
suse.de-backup-rpmdb      suse.de-updatedb

crontab file: This is more or less what I saw in the Kcrone window as root It is set to run daily every 15 minutes

SHELL=/bin/sh
PATH=/usr/bin:/usr/sbin:/sbin:/bin:/usr/lib/news/bin
MAILTO=root
#
# check scripts in cron.hourly, cron.daily, cron.weekly, and cron.monthly
#
-*/15 * * * *   root  test -x /usr/lib/cron/run-crons && /usr/lib/cron/run-cron$

Ok it is most likely the beagle-crawl-system is the major offender here. But that still begs the question of why at 4:00 PM does the daily cron tasks run and how to change this time???????

I could remove beagle I have really never used it. Still.....

here are all the cron.xxx dir

cron.daily:
beagle-crawl-system       suse.de-check-battery  suse.de-update-preload
logrotate                 suse.de-clean-core     suse-do_mandb
suse-clean_catman         suse.de-clean-tmp      suse-tetex
suse.de-backup-rc.config  suse.de-cron-local
suse.de-backup-rpmdb      suse.de-updatedb

cron.hourly:
mcelog

cron.monthly:

cron.weekly:
wwwoffle

[oldcpu]

SHELL=/bin/sh
PATH=/usr/bin:/usr/sbin:/sbin:/bin:/usr/lib/news/bin
MAILTO=root
#
# check scripts in cron.hourly, cron.daily, cron.weekly, and cron.monthly
#
-*/15 * * * *   root  test -x /usr/lib/cron/run-crons && /usr/lib/cron/run-cron$

I'm definitely a beginner/newbie when it comes to cron jobs, ... but it looks to me that you could look at the code in /usr/lib/cron/run-crons and maybe also in /usr/lib/cron/run-cron$ to see if you can get any hints.

[gogalthorp]

I'm definitely a beginner/newbie when it comes to cron jobs, ... but it looks to me that you could look at the code in /usr/lib/cron/run-crons and maybe also in /usr/lib/cron/run-cron$ to see if you can get any hints.

There is no /usr/lib/cron/run-cron$

But here is the part of /usr/lib/cron/run-crons script that I beleve is the control for daily

          cron.daily) 
			# if DAILY_TIME set, run only at a fixed time of day
			if [ "$DAILY_TIME" != "" ] ; then
			  DAILY_TIME_NEW="`echo $DAILY_TIME | sed s,:,, | sed s,^0,, `" 
                          if [ "$DAILY_TIME_NEW" -gt "2359" ] ; then
                            echo "wrong time format in /etc/sysconfig/cron DAILY_TIME, value is $DAILY_TIME" | logger
			  fi  
                          NOW_H=`date +%H%M`
                            if [ $(($DAILY_TIME_NEW - 15)) -lt "$NOW_H" ] && [ $(($DAILY_TIME_NEW  + 15)) -gt "$NOW_H" ]; then
                              TIME=""
                            else
			      # take care of MAX_NOT_RUN, default is 7 days
			      if [ "$MAX_NOT_RUN" != "0" ] ; then
                                TIME="-cmin +$((1440*$MAX_NOT_RUN)) -or -cmin $((1440*$MAX_NOT_RUN))"
			      else
				TIME="-cmin +$MAX_NOT_RUN_FORCE -or -cmin $MAX_NOT_RUN_FORCE" 
			      fi                               
                            fi 
 
			# run as usual   
			else
			  TIME="-cmin +1440 -or -cmin 1440" 
			fi ;;

Looks like DAILY_TIME is an "enviromental" variable that holds the time to do the daily cron job

Ok now I get fuzzy... how do you set a variable and more important how to set it in a script that will run at boot/session start???
typeing echo $DAILY_TIME returns nothing
SET DAILY_TIME = 21:00 or "21:00" does not seem to "set" anything

also don't really understand this line
TIME="-cmin +1440 -or -cmin 1440"

don't know where cmin comes from???