+++ This bug was initially created as a clone of Bug #106578 +++ From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.4) Gecko/20030624 Description of problem: sometimes cronjobs start earlier then configured in crontab. Example: * * * * * date +'\%s.\%N' >> /tmp/date-2.log ;date >> /tmp/date-2.log Wed Oct 8 12:21:00 CEST 2003 1065608519.783610000 Wed Oct 8 12:21:59 CEST 2003 1065608580.791188000 the smallest intervall is 58.1968970298767 this problem is very dangerous for example logrotating at 00:00:00 with a date in file name You can also find some entries in cron log from cron.hourly with HH:00:59 (should be > HH:01:00) Version-Release number of selected component (if applicable): vixie-cron-3.0.1-63.1 How reproducible: Always Steps to Reproduce: 1.crontab -e: * * * * * date +'\%s.\%N' >> /tmp/date-2.log 2.cat date-2.log |sort -nr|perl -ne '$NEW=$_;chop $NEW ;print "$NEW - $LAST:\t"; print $NEW - $LAST ."\n" ;$LAST=$NEW ;' 3. or: grep cron.hourly /etc/crontab; grep ":00:59" /var/log/cron* Additional info: This was initially reported against RHL9. A fix has been intruduced into vixie-cron-4.x. Customer is requesting the fix be backported to RHEL3.
I had the version wrong. It should be Version-Release number of selected component (if applicable): vixie-cron-3.0.1-75.1
This is fixed with vixie-cron-4.1-4_EL3, submitted for RHEL-3-U5 .
Meanwhile, it can be downloaded from: http://people.redhat.com/~jvdias/cron/RHEL-3
This should be set to MODIFIED until the errata has actually been released and the customer has verified the fix.
This bug is addressed by errata RHBA-2004:639-18 , targetted for RHEL-3-U5 . http://porkchop.devel.redhat.com/errata/erratainfo.cgi?advisory=2004%3A639
The latest version of vixie-cron for RHEL-3 is vixie-cron-4.1-8_EL3, which fixes this problem, and is available from : http://people.redhat.com/~jvdias/cron/RHEL-3 The errata for it is RHSA:2005-402 ( http://porkchop/errata/erratainfo.cgi?advisory=1755 ). A fix for this issue has been submitted since 2004-11-16 and completed QA testing on 2005-03-10 but as yet has not been allocated to any update release by product management. I guess the best advice to customers who want this issue fixed in a supported RHEL vixie-cron release would be to upgrade to RHEL-4 .
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2006-0117.html